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• Creating predefinied camera views - How do I move the camera to make sense while using Controller?

  - by Deukalion

  I'm trying to understand 3D but the one thing I can't seem to understand is the Camera. Right now I'm rendering four 3D Cubes with textures and I set the Project Matrix: public BasicCamera3D(float fieldOfView, float aspectRatio, float clipStart, float clipEnd, Vector3 cameraPosition, Vector3 cameraLookAt) { projection_fieldOfView = MathHelper.ToRadians(fieldOfView); projection_aspectRatio = aspectRatio; projection_clipstart = clipStart; projection_clipend = clipEnd; matrix_projection = Matrix.CreatePerspectiveFieldOfView(projection_fieldOfView, aspectRatio, clipStart, clipEnd); view_cameraposition = cameraPosition; view_cameralookat = cameraLookAt; matrix_view = Matrix.CreateLookAt(cameraPosition, cameraLookAt, Vector3.Up); } BasicCamera3D gameCamera = new BasicCamera3D(45f, GraphicsDevice.Viewport.AspectRatio, 1.0f, 1000f, new Vector3(0, 0, 8), new Vector3(0, 0, 0)); This creates a sort of "Top-Down" camera, with 8 (still don't get the unit type here - it's not pixels I guess?) But, if I try to position the camera at the side to make "Side-View" or "Reverse Side View" camera, the camera is rotating to much until it's turned around it a couple of times. I render the boxes at: new Vector3(-1, 0, 0) new Vector3(0, 0, 0) new Vector3(1, 0, 0) new Vector3(1, 0, 1) and with the Top-Down camera it shows good, but I don't get how I can make the camera show the side or 45 degrees from top (Like 3rd person action games) because the logic doesn't make sense. Also, since every object you render needs a new BasicEffect with a new projection/view/world - can you still use the "same" camera always so you don't have to create a new View/Matrix and such for each object. It's seems weird. If someone could help me get the camera to navigate around my objects "naturally" so I can be able to set a few predtermined views to choose from it would be really helpful. Are there some sort of algorithm to calculate the view for this and perhaps not simply one value? Examples: Top-Down-View: I have an object at 0, 0, 0 when I turn the right stick on the Xbox 360 Controller it should rotate around that object kind of, not flip and turn upside down, disappear and then magically appear as a tiny dot somewhere I have no clue where it is like it feels like it does now. Side-View: I have an object at 0, 0, 0 when I rotate to sides or up and down, the camera should be able to show a little more of the periphery to each side (depending on which you look at), and the same while moving up or down.

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• View Link inConsistency

  - by Abhishek Dwivedi

  What is View Link Consistency? When multiple instances (say VO1, VO2, VO3 etc) of an EO-based VO are based on the same underlying EO, a new row created in one of these VO instances (say VO1)can be automatically added (without re-query) to the row sets of the others (VO2, VO3 etc ). This capability is known as the view link consistency. This feature works for any VO for which it is enabled, regardless of whether they are involved in a view link or not. What causes View Link inConsistency? Unless jbo.viewlink.consistent  is disabled for this VO (or globally), or setAssociationConsistent(false) is applied, any of the following can cause View Link inConsistency.  1. setWhereClause 2. Unreferenced secondary EO 3. findByViewCriteria() 4. Using view link accessor row set Why does this happen - View Link inConsistency? Well, there can be one of the following reasons. a. In case of 1 & 2, the view link consistency flag is disabled on that view object. b. As far as 3 is concerned, findByViewCriteria is used to retrieve a new row set to process programmatically without changing the contents of the default row set. In this case, unlike previous cases, the view link consistency flag is not disabled, meaning that the changes in the default row set would be reflected in the new row set.  However, the opposite doesn't hold true. For instance, if a row is deleted from this new row set, the corresponding row in the default row set does not get deleted. In one of my features, which involved deletion of row(s), I resolved the view link inconsistency issue by replacing findByViewCriteria by applyViewCriteria. b. For 4, it's similar to 3 - whenever a view link accessor row set is retrieved, a new row set is created. Now, creating new row set does not mean re-executing the query each time, only creating a new instance of a RowSet object with its default iterator reset to the "slot" before the first row. Also, please note that this new row set always originates from an internally created view object instance, not one you that added to the data model. This internal view object instance is created as needed and added with a system-defined name to the root application module. Anyway, the very reason a distinct, internally-created view object instance is used is to guarantee that it remains unaffected by developer-related changes to their own view objects instances in the data model.

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• Using ASP.NET Membership Provider with an ACL

  - by geekrutherford

  Up until recently one of my applications has used the membership provider within ASP.NET exclusively. However, it has been proposed that while the currently defined roles are beneficial, security needs to be more granular to restrict both access to certain pages and functionality present within a given page.   Unfortunately, the role based security ASP.NET gives you out of the box falls down in this area. This is not due to a lack of foresight by Microsoft, but rather it was simply not designed for implementing both role based security and any inherent ACL you may define within these roles. Mind you some would say an ACL is independent of the role to which a user belongs and is assigned to the user directly.   The application mentioned here has it's own User object (which encapsulates the membership provider user object as a property) and SQL Server table to store extended information not present in the aspnet_users table. While I could have modified the aspnet membership schema to suit the applications needs, it seemed smarter to simply create a separate table with a foreign key back to the aspnet_users table.   Since I have a separate object to store extended user information, I simply created an ACL object and expose it as a property of my user object.   This is all well and good, but it does not help in regards to the SiteMapProvider and restricting access at the page level based on the users ACL.   The straightforward answer would be to develop some code within the databound event for the menu that checks the page title and has hardcoded logic that dictates a user must have certain permissions turned on. The problem with this approach is that it's HARDCODED!!! If you need to change access to a page you'd need to do a build and go through your normal deployment process....ugh!!!   An alternative method, albeit not perfect, is to utilize the resourceKey property on the SiteMapNodes in the SiteMap file with the name of the required permission to view the page. Within the databound event for your menu you iterate the SiteMapNodes in the menus SiteMapProvider looking for a match at the page level based on title. When a match is detected, you have a switch/case on the SiteMapNodes resourceKey (the name of the ACL permission required). The case for the resourceKey ensures the users ACL permission is turned on and viola!!!   This is noteably not perfect in that it is using the resourceKey in a manner other than intended.  Since the application is not localized, using it in the manner described it not an issue.   Below is a sample SiteMap file with the resourceKey used as the ACL permission identifier:     Below is the ItemDataBound event. This application uses the Telerik Menu control:

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• How to Make Objects Fall Faster in a Physics Simulation

  - by David Dimalanta

  I used the collision physics (i.e. Box2d, Physics Body Editor) and implemented onto the java code. I'm trying to make the fall speed higher according to the examples: It falls slower if light object (i.e. feather). It falls faster depending on the object (i.e. pebble, rock, car). I decided to double its falling speed for more excitement. I tried adding the mass but the speed of falling is constant instead of gaining more speed. check my code that something I put under input processor's touchUp() return method under same roof of the class that implements InputProcessor and Screen: @Override public boolean touchUp(int screenX, int screenY, int pointer, int button) { // TODO Touch Up Event if(is_Next_Fruit_Touched) { BodyEditorLoader Fruit_Loader = new BodyEditorLoader(Gdx.files.internal("Shape_Physics/Fruity Physics.json")); Fruit_BD.type = BodyType.DynamicBody; Fruit_BD.position.set(x, y); FixtureDef Fruit_FD = new FixtureDef(); // --> Allows you to make the object's physics. Fruit_FD.density = 1.0f; Fruit_FD.friction = 0.7f; Fruit_FD.restitution = 0.2f; MassData mass = new MassData(); mass.mass = 5f; Fruit_Body[n] = world.createBody(Fruit_BD); Fruit_Body[n].setActive(true); // --> Let your dragon fall. Fruit_Body[n].setMassData(mass); Fruit_Body[n].setGravityScale(1.0f); System.out.println("Eggs... " + n); Fruit_Loader.attachFixture(Fruit_Body[n], Body, Fruit_FD, Fruit_IMG.getWidth()); Fruit_Origin = Fruit_Loader.getOrigin(Body, Fruit_IMG.getWidth()).cpy(); is_Next_Fruit_Touched = false; up = y; Gdx.app.log("Initial Y-coordinate", "Y at " + up); //Once it's touched, the next fruit will set to drag. if(n < 50) { n++; }else{ System.exit(0); } } return true; } And take note, at show() method , the view size from the camera is at 720x1280: camera_1 = new OrthographicCamera(); camera_1.viewportHeight = 1280; camera_1.viewportWidth = 720; camera_1.position.set(camera_1.viewportWidth * 0.5f, camera_1.viewportHeight * 0.5f, 0f); camera_1.update(); I know it's a good idea to add weight to make the falling object falls faster once I released the finger from the touchUp() after I picked the object from the upper right of the screen but the speed remains either constant or slow. How can I solve this? Can you help?

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• Exchange 2010, Exchange 2003 Mail Flow issue

  - by Ryan Roussel

  While performing the initial Exchange 2010 deployment for a customer migrating from Exchange 2003, I ran into an issue with mail flow between the two environments.  The Exchange 2003 mailboxes could send to Exchange 2010, as well as to and from the internet.  Exchange 2010 mailboxes could send and receive to the internet, however they could not send to Exchange 2003 mailboxes.   After scouring the internet for a solution, it seemed quite a few people were experiencing this issue with no resolution to be found, or at least not easily.  After many attempts of manually deleting and recreating the routing group connectors,  I finally lucked onto the answer in an obscure comment left to another blogger.   If inheritable permissions are not allowed on the Exchange 2003 object in the Active Directory schema, exchange server authentication cannot be achieved between the servers.   It seems when Blackberry Enterprise Server gets added to 2003 environments, a lot of Admins get tricky and add the BES Admin user explicitly to the server object  to allow  inheritance down from there to all mailboxes.  The problem is they also coincidently turn off inheritance to the server object itself from its parent containers.  You can re-establish inheritance without overwriting the existing ACL however so that the BES Admin can remain in the server object ACL.   By re-establishing inheritance to the 2003 server object, mail flow was instantly restored between the servers.    To re-establish inheritance: 1. Open ASDIedit by adding the snap-in to a MMC (should be included on your 2008 server where Exchange 2010 is installed) 2. Navigate to Configuration > Services > Microsoft Exchange > Exchange Organization > Administrative Groups > First Administrative Group > Servers 3. In the right pane, right click on the CN=Server Name of your Exchange 2003 Server, select properties 4. Navigate to the Security tab, hit advanced toward the bottom. 5. Check the checkbox that reads “include inheritable permissions” toward the bottom of the dialogue box.

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• Creating classed in JavaScript

  - by Renso

  Goal:Creating class instances in JavaScript is not available since you define "classes" in js with object literals. In order to create classical classes like you would in c#, ruby, java, etc, with inheritance and instances.Rather than typical class definitions using object literals, js has a constructor function and the NEW operator that will allow you to new-up a class and optionally provide initial properties to initialize the new object with.The new operator changes the function's context and behavior of the return statement.var Person = function(name) {   this.name = name;};   //Init the personvar dude= new Person("renso");//Validate the instanceassert(dude instanceof Person);When a constructor function is called with the new keyword, the context changes from global window to a new and empty context specific to the instance; "this" will refer in this case to the "dude" context.Here is class pattern that you will need to define your own CLASS emulation library:var Class = function() {   var _class = function() {      this.init.apply(this, arguments);   };   _class.prototype.init = function(){};   return _class;}var Person a new Class();Person.prototype.init = function() {};var person = new Person;In order for the class emulator to support adding functions and properties to static classes as well as object instances of People, change the emulator:var Class = function() {   var _class = function() {      this.init.apply(this, arguments);   };   _class.prototype.init = function(){};   _class.fn = _class.prototype;   _class.fn.parent = _class;   //adding class properties   _class.extend = function(obj) {      var extended = obj.extended;      for(var i in obj) {         _class[i] = obj[i];      };      if(extended) extended(_class);   };   //adding new instances   _class.include = function(obj) {      var included = obj.included;      for(var i in obj) {         _class.fn[i] = obj[i];      };      if(included) included(_class);   };   return _class;}Now you can use it to create and extend your own object instances://adding static functions to the class Personvar Person = new Class();Person.extend({   find: function(name) {/*....*/},      delete: function(id) {/*....*/},});//calling static function findvar person = Person.find('renso');   //adding properties and functions to the class' prototype so that they are available on instances of the class Personvar Person = new Class;Person.extend({   save: function(name) {/*....*/},   delete: function(id) {/*....*/}});var dude = new Person;//calling instance functiondude.save('renso');

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• Applying DDD principles in a RESTish web service

  - by Andy

  I am developing an RESTish web service. I think I got the idea of the difference between aggregation and composition. Aggregation does not enforce lifecycle/scope on the objects it references. Composition does enforce lifecycle/scope on the objects it contain/own. If I delete a composite object then all the objects it contain/own are deleted as well, while the deleting an aggregate root does not delete referenced objects. 1) If it is true that deleting aggregate roots does not necessary delete referenced objects, what sense does it make to not have a repository for the references objects? Or are aggregate roots as a term referring to what is known as composite object? 2) When you create an web service you will have multiple endpoints, in my case I have one entity Book and another named Comment. It does not make sense to leave the comments in my application if the book is deleted. Therefore, book is a composite object. I guess I should not have a repository for comments since that would break the enforcement of lifecycle and rules that the book class may have. However I have URL such as (examples only): GET /books/1/comments POST /books/1/comments Now, if I do not have a repository for comments, does that mean I have to load the book object and then return the referenced comments? Am I allowed to return a list of Comment entities from the BookRepository, does that make sense? The repository for Book may eventually become rather big with all sorts of methods. Am I allowed to write JPQL (JPA queries) that targets comments and not books inside the repository? What about pagination and filtering of comments. When adding a new comment triggered by the POST endpoint, do you need to load the book, add the comment to the book, and then update the whole book object? What I am currently doing is having a own CommentRepository, even though the comments are deleted with the book. I could need some direction on how to do it correct. Since you are exposing not only root objects in RESTish services I wonder how to handle this at the backend. I am using Hibernate and Spring.

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• Collision disturbing the jumping mechanic in java 2D game [on hold]

  - by user50931

  So I have been working on a 2D Java game recently and everything was going smoothly, until I reached a problem to do with the players jumping mechanic. So far I've got the player to jump a fixed rate and fall due to gravity. Hers my code for my Player class. public class Player extends GameObject { public Player(int x, int y, int width, int height, ObjectId id) { super(x, y, width, height, id); } @Override public void tick(ArrayList<GameObject> object) { if(go){ x+=vx; y+=vy; } if(vx <0){ facing =-1; }else if(vx >0) facing =1; checkCollision(object); checkStance(); } private void checkStance() { if(falling){ //gravity jumping = false; vy = speed/2; } if(jumping){ // Calculates how high jump should be vy = -speed*2; if(jumpY - y >= maxJumpHeight) falling =true; } } private void checkCollision(ArrayList<GameObject> object) { for(int i=0; i< object.size(); i++ ){ GameObject tempObject = object.get(i); if(tempObject.getId() == ObjectId.Ledge){ if(getBoundsTop().intersects(tempObject.getBoundsAll())){ //Top y = tempObject.getY() + tempObject.getBoundsAll().height; falling =true; } if(getBoundsRight().intersects(tempObject.getBoundsAll())){ // Right x = tempObject.getX() -width ; } if(getBoundsLeft().intersects(tempObject.getBoundsAll())){ //Left x = tempObject.getX() + tempObject.getWidth(); } if(getBoundsBottom().intersects(tempObject.getBoundsAll())){ //Bottom y = tempObject.getY() - height; falling =false; vy=0; }else{ falling =true; } } } } @Override public void render(Graphics g) { g.setColor(Color.BLACK); g.fillRect((int)x, (int)y, width, height); } @Override public Rectangle getBoundsAll() { return new Rectangle((int)x, (int)y,width,height); } public Rectangle getBoundsTop() { return new Rectangle((int) x , (int)y ,width,height/15); } public Rectangle getBoundsBottom() { return new Rectangle( (int)x , (int) y +height -(height /15),width,height/15); } public Rectangle getBoundsLeft() { return new Rectangle( (int) x , (int) y + height /10 ,width/8,height - (height /5)); } public Rectangle getBoundsRight() { return new Rectangle((int) x + width - (width/8) ,(int) y + height /10 ,width/8,height - height/5); } } My problem is when I add: else{ falling =true; } during the loop of the ArrayList to check collision, it stops the player from jumping and keeps him on the ground. I've tried to find a way around this but haven't had any luck. Any suggestions?

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• Translating multiple objects in GUI based on average position?

  - by user1423893

  I use this method to move a single object in 3D space, it accounts for a local offset based on where the cursor ray hits the widget and the center of the widget. var cursorRay = cursor.Ray; Vector3 goalPosition = translationWidget.GoalPosition; Vector3 position = cursorRay.Origin + cursorRay.Direction * grabDistance; // Constrain object movement based on selected axis switch (translationWidget.AxisSelected) { case AxisSelected.All: goalPosition = position; break; case AxisSelected.None: break; case AxisSelected.X: goalPosition.X = position.X; break; case AxisSelected.Y: goalPosition.Y = position.Y; break; case AxisSelected.Z: goalPosition.Z = position.Z; break; } translationWidget.GoalPosition = goalPosition; Vector3 p = goalPosition - translationWidget.LocalOffset; objectSelected.Position = p; I would like to move multiple objects based on the same principle and using a widget which is located at the average position of all the objects currently selected. I thought that I would have to translate each object based on their offset from the average point and then include the local offset. var cursorRay = cursor.Ray; Vector3 goalPosition = translationWidget.GoalPosition; Vector3 position = cursorRay.Origin + cursorRay.Direction * grabDistance; // Constrain object movement based on selected axis switch (translationWidget.AxisSelected) { case AxisSelected.All: goalPosition = position; break; case AxisSelected.None: break; case AxisSelected.X: goalPosition.X = position.X; break; case AxisSelected.Y: goalPosition.Y = position.Y; break; case AxisSelected.Z: goalPosition.Z = position.Z; break; } translationWidget.GoalPosition = goalPosition; Vector3 p = goalPosition - translationWidget.LocalOffset; int numSelectedObjects = objectSelectedList.Count; for (int i = 0; i < numSelectedObjects; ++i) { objectSelectedList[i].Position = (objectSelectedList[i].Position - translationWidget.Position) + p; } This doesn't work as the object starts shaking, which I think is because I haven't accounted for the new offset correctly. Where have I gone wrong?

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• CodePlex Daily Summary for Wednesday, February 17, 2010

  CodePlex Daily Summary for Wednesday, February 17, 2010New ProjectsAcademic Success Accounting System: The system is intended to use by school teacher to set marks to students and estimate their academic success and possibilities. The client applicat...Access.PowerTools: Access PowerTools is currently a sample MS Access add-in project to try & test features of Add-in Express™ 2009 for Microsoft® Office and .net (ht...AntoonCms: AntoonCms makes it easy to maintain a simple website with it's builtin administration pages. It's developed in C# on target Framework 2.0 The CMS...ASP.NET MVC Mehr Lib: Mehr Lib makes it easier for ASP.NET MVC developers to do develop projects. It's developed in C#. This version currently include Ajax master detail...BCryptTool: Developer tool that calculates BCrypt hash codes for strings. BCrypt is an implementation of the Blowfish cipher and a computationally-expensive ha...Coronasoft Cryostasis scripting engine: A scripting engine that allows you to dynamically load plugins from just about any supported .NET language. Its written in C#. Languages supported ...Critical Point Search: Critical Point Searchcritical points: critical pointsFont Family Name Retrieval: This library helps developer to retrieve the font family name from the TTF, OTF and TTC font files, so that developer can display the font without ...jQuery Form Input Hints Plugin: Automatically display hints on input textboxes in your forms using this jQuery plugin. I wrote this code to be as simple and as easy to use as pos...Kojax: kojax projectKronRetro: KronRetro! Making a Habbo Retro just got easier! Powered by PHP & MySQL you can make a Habbo Retro site fast!MVVM Wrapper Kit: MVVM Wrapper Kit makes it easier for View Model programmers to wrap their business objects and collections while preserving change notification and...ObjectCartographer: ObjectCartographer is an object to object mapper and object factory. It's developed in C#.PE-file Reader Writer API (PERWAPI): PERWAPI is a reader writer module for .NET program executables. It has been used as back-end for progamming language compilers such as Gardens Poi...Pinger: A simple Pinger, pings an address until you press a buttonQPV: 0.1: QPV aka Que pelicula es una aplicacion que consiste crear una base de datos potente de peliculas, criticas e informacion para poder filtrar pelicul...SIMD Detector: This SIMD class helps developers to detect the types of SIMD instruction available on users' processor. It supports Intel and AMD CPUs. It is writt...StackOverflow Test Project: Following Andrew Siemer's StackOverflow Knowledge Exchange Project.WeBlog: A blogging platform built on the MVC framework The project will showcase current technologies such as MVC 2, Silverlight 4 and jQuery 1.4. Data pro...Webmedia: this is my webmedia projectWindows Azure RSS Reader: This is and online RSS reader based on the Windows Azure platformWordEditor. A Word Editor for Windows, and an extended RichTextBox control.: This is a word editor that can be used as a stand alone word processor, or added to an existing project.Домашняя Бухгалтерия: Программа для ведения домашнего бухгалтерского учета финансов. New ReleasesAccess.PowerTools: Access PowerTools Add-In Community Edition v.0.0.1: Access PowerTools Add-In Community Edition v.0.0.1 is a sample MS Access add-in project to try & test Add-in Express™ 2009 for Microsoft® Office an...Active CSS: ActiveCSS-0.1.1: revision for version 0.1ASP.NET: Microsoft Ajax Minifier 4.0: The Microsoft Ajax Minifier enables you to improve the performance of your Ajax applications by reducing the size of your Cascading Style Sheet and...ASP.NET MVC Mehr Lib: V1.0: Mehr Lib V1.0 This version currently include ajax master detail combo facilities.ASP.net Ribbon: Version 1.2: New controls : Expandable gallery Color Picker Multi color File Menu Some JS modifications. Some CSS modifications. Includes some functionna...ASP.NET Web Forms Model-View-Presenter (MVP) Contrib: WebForms MVP Contrib CTP6: This is a release of the WebForms MVP Contrib project for WebForms MVP CTP6. Release includes: WebForms MVP Contrib framework Ninject IoC containerAwesomiumDotNet: AwesomiumDotNet 1.2.1: - Added Awesomium 1.5 features: URL filtering, header rewrite rules, SetOpensExternalLinksInCallingFrame. - Numerous fixes and improvements.BCryptTool: BCryptTool v0.1: The Microsoft .NET Framework 3.5 (SP1) is needed to run this program.Buzz Dot Net: Buzz Dot Net v.1.10216: Features Parse Google Buzz feed to Objects Partial MVVM Implementation Partial OptimizationsCanvas VSDOC Intellisense: v1.0.0.0a: canvas-vsdoc.js and canvas-utils.js JavaScript intellisense for HTML5 Canvas element.CheckHeader: CheckHeader v0.8.5: The Microsoft .NET Framework 3.5 (SP1) is needed to run this program.Claymore MVP: Claymore 1.0.2.0: Changelog Added ASP.NET WebForm support via ClaymoreHttpModule class. Added xsd schema for Visual Studio Intellisense within App.config and Web....Dam Gd - URL Shortner: Dam.gd Version 1.1: This is the latest instalment in our URL shortner. It uses The Easy API http://theeasyapi.com to access data that is used for the back-end analyti...D-AMPS: D-AMPS 0.9.1: Initial version.easySMS: easySMS 1.0 Source code: easySMS 1.0 Source codeFont Family Name Retrieval: 1st Release: Version 1.0.0Free Silverlight & WPF Chart Control - Visifire: Visifire Now Supports DataBinding: Hi, Today we are releasing the much awaited DataBinding feature in Visifire 3.0.3 beta 3. Now you can Bind any DataSource at the Series level so t...GenerateTypedBamApi: Version 2.0: Changes in this release: NEW: Export functionality no longer requires Excel to be installed (uses OLE DB vs. Excel Automation; also enables usage i...Gmail Notifier 2: GmailNotifier2 1.2.1: Fixes issues #9652, #9653iTuner - The iTunes Companion: iTuner 1.1.3699: This includes the first pass of the iTuner Librarian including management of dead tracks, duplicates, and empty directories... While I promised a ...jQuery Form Input Hints Plugin: jQuery.InputHints v1.0: jQuery.InputHints v1.0 Includes Standard & minified source Demo HTML file VS2008 SolutionLibWowArmory: LibWowArmory 0.2.3 beta: LibWowArmory 0.2.3 betaThis release of the LibWowArmory source code matches the WoW Armory as of version 3.3.2. Changes since version 0.2.2:Update...Managed Extensibility Framework: MEF Preview 9: We have merged the .net 3.5 and Silverlight 3 into a single zip. The bin folder contains the binaries for .net 3.5 whereas bin\SL contains the bina...MDX Parser,Builder,DOM and OLAP visual controls with Writeback for Silverlight: Ranet.UILibrary.Olap-1.3.3.0-6571.msi: February 16, 2010 * MdxDesigner: Fix for the issue where when an element is clicked, the mouse wheel stops working until the cursor leaves and r...MEFGeneric: MEFGeneric Preview 9: MEFGeneric Preview 9 release.Mesopotamia Experiment: Mesopotamia 1.2.26: Bug Fixes - mud map - progress window - recycle app domains on robotics engine crashes( in command prompt and visual, major work) - fixed rooomba h...Microsoft Solution Framework for Business Intelligence in Media: Release 1.0: This is the public release of the Microsoft Solution Framework for Business Intelligence in Media (Release 1.0).MVVM Wrapper Kit: MVVM Wrapper Beta: A simple test project is included to get you up and running, and wrapping those business objects.nBayes - Bayesian Filtering in C#: nBayes v0.2: nBayes' indexing system is factored in such a way that you can easily replace the index with a custom implementation. This release introduces an ad...NetSqlAzMan - .NET SQL Authorization Manager: 3.6.0.5: 3.6.0.5 16-February-2010 - Fix: SqlAzManSid Class. "Equals" matches object signiture instead of IAzManSid signiture. When a real null object is pas...ObjectCartographer: ObjectCartographer Code 1.0: This is the first release and contains code to help with object to object mapping (including mapping from one object to multiple objects), object f...Office Apps: 0.8.6: Bug fix's, added Calendar.OI - Open Internet: OI HTML and .XAP files (OI offline): this is the HTML code and the XAP file. please right-click the app at http://bit.ly/openinternet and select "install openinternet application to th...PE-file Reader Writer API (PERWAPI): PERWAPI-1.1.3: Perwapi version 1.1.3 is the complete distribution package. It contains Binary files, pdb files and xml files for the PERWAPI and SymbolRW compone...Pinger: Pinger 1.0.0.0 Binary: The Latest BinaryRNA Comparative Analysis Software Tools: RNA Comparative Analysis Software Tools 2.0: RNA Comparative Analysis Software Tools Version 2.0 Note: The RNA Comparative Analysis Software Tools are provided as is, without any warranty. No...SAL- Self Artificial Learning: Artificial Learning working proof of concept: This is a working proof of concept. It includes the Dev version (in .zip format) and the consumer version (in .exe format)SharePoint Management PowerShell scripts: SharePoint 2010 PowerShell Scripts: All the SharePoint 2010 PowerShell Scripts The first file is an Excel 2010 file allowing to find quiclky and easily the new cmdlets available wi...SIMD Detector: 1st Release: Version 1.3 Supports MMX/MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4a, SSE5, 3DNow.Terminals: Terminals 1.9 Beta Release: This is a beta release so the new features being added to terminals can be tested properly. The major change in this release is that Terminals has...Text Designer Outline Text Library: 9th minor release: Added the ability to select brush, such as gradient brush or texture brush for the text body. Added CSharp library, TextDesignerCSLibrary. Manage...VivoSocial: VivoSocial 7.0.2: This release has several updated modules. See the Support Forums for more details. Since we update modules very often, we will be changing how we d...WatchersNET CKEditor™ Provider for DotNetNuke: CKEditor Provider 1.6.00: changes CKEditor Upgrade to Version 3.2 SVN 5132 File Browser: After File Upload, File will be Auto Selected File Browser: Icons are corrected ...WordEditor. 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• Inheritance Mapping Strategies with Entity Framework Code First CTP5 Part 1: Table per Hierarchy (TPH)

  - by mortezam

  A simple strategy for mapping classes to database tables might be “one table for every entity persistent class.” This approach sounds simple enough and, indeed, works well until we encounter inheritance. Inheritance is such a visible structural mismatch between the object-oriented and relational worlds because object-oriented systems model both “is a” and “has a” relationships. SQL-based models provide only "has a" relationships between entities; SQL database management systems don’t support type inheritance—and even when it’s available, it’s usually proprietary or incomplete. There are three different approaches to representing an inheritance hierarchy: Table per Hierarchy (TPH): Enable polymorphism by denormalizing the SQL schema, and utilize a type discriminator column that holds type information. Table per Type (TPT): Represent "is a" (inheritance) relationships as "has a" (foreign key) relationships. Table per Concrete class (TPC): Discard polymorphism and inheritance relationships completely from the SQL schema.I will explain each of these strategies in a series of posts and this one is dedicated to TPH. In this series we'll deeply dig into each of these strategies and will learn about "why" to choose them as well as "how" to implement them. Hopefully it will give you a better idea about which strategy to choose in a particular scenario. Inheritance Mapping with Entity Framework Code FirstAll of the inheritance mapping strategies that we discuss in this series will be implemented by EF Code First CTP5. The CTP5 build of the new EF Code First library has been released by ADO.NET team earlier this month. EF Code-First enables a pretty powerful code-centric development workflow for working with data. I’m a big fan of the EF Code First approach, and I’m pretty excited about a lot of productivity and power that it brings. When it comes to inheritance mapping, not only Code First fully supports all the strategies but also gives you ultimate flexibility to work with domain models that involves inheritance. The fluent API for inheritance mapping in CTP5 has been improved a lot and now it's more intuitive and concise in compare to CTP4. A Note For Those Who Follow Other Entity Framework ApproachesIf you are following EF's "Database First" or "Model First" approaches, I still recommend to read this series since although the implementation is Code First specific but the explanations around each of the strategies is perfectly applied to all approaches be it Code First or others. A Note For Those Who are New to Entity Framework and Code-FirstIf you choose to learn EF you've chosen well. If you choose to learn EF with Code First you've done even better. To get started, you can find a great walkthrough by Scott Guthrie here and another one by ADO.NET team here. In this post, I assume you already setup your machine to do Code First development and also that you are familiar with Code First fundamentals and basic concepts. You might also want to check out my other posts on EF Code First like Complex Types and Shared Primary Key Associations. A Top Down Development ScenarioThese posts take a top-down approach; it assumes that you’re starting with a domain model and trying to derive a new SQL schema. Therefore, we start with an existing domain model, implement it in C# and then let Code First create the database schema for us. However, the mapping strategies described are just as relevant if you’re working bottom up, starting with existing database tables. I’ll show some tricks along the way that help you dealing with nonperfect table layouts. Let’s start with the mapping of entity inheritance. -- The Domain ModelIn our domain model, we have a BillingDetail base class which is abstract (note the italic font on the UML class diagram below). We do allow various billing types and represent them as subclasses of BillingDetail class. As for now, we support CreditCard and BankAccount: Implement the Object Model with Code First As always, we start with the POCO classes. Note that in our DbContext, I only define one DbSet for the base class which is BillingDetail. Code First will find the other classes in the hierarchy based on Reachability Convention. public abstract class BillingDetail  {     public int BillingDetailId { get; set; }     public string Owner { get; set; }             public string Number { get; set; } } public class BankAccount : BillingDetail {     public string BankName { get; set; }     public string Swift { get; set; } } public class CreditCard : BillingDetail {     public int CardType { get; set; }                     public string ExpiryMonth { get; set; }     public string ExpiryYear { get; set; } } public class InheritanceMappingContext : DbContext {     public DbSet<BillingDetail> BillingDetails { get; set; } } This object model is all that is needed to enable inheritance with Code First. If you put this in your application you would be able to immediately start working with the database and do CRUD operations. Before going into details about how EF Code First maps this object model to the database, we need to learn about one of the core concepts of inheritance mapping: polymorphic and non-polymorphic queries. Polymorphic Queries LINQ to Entities and EntitySQL, as object-oriented query languages, both support polymorphic queries—that is, queries for instances of a class and all instances of its subclasses, respectively. For example, consider the following query: IQueryable<BillingDetail> linqQuery = from b in context.BillingDetails select b; List<BillingDetail> billingDetails = linqQuery.ToList(); Or the same query in EntitySQL: string eSqlQuery = @"SELECT VAlUE b FROM BillingDetails AS b"; ObjectQuery<BillingDetail> objectQuery = ((IObjectContextAdapter)context).ObjectContext                                                                          .CreateQuery<BillingDetail>(eSqlQuery); List<BillingDetail> billingDetails = objectQuery.ToList(); linqQuery and eSqlQuery are both polymorphic and return a list of objects of the type BillingDetail, which is an abstract class but the actual concrete objects in the list are of the subtypes of BillingDetail: CreditCard and BankAccount. Non-polymorphic QueriesAll LINQ to Entities and EntitySQL queries are polymorphic which return not only instances of the specific entity class to which it refers, but all subclasses of that class as well. On the other hand, Non-polymorphic queries are queries whose polymorphism is restricted and only returns instances of a particular subclass. In LINQ to Entities, this can be specified by using OfType<T>() Method. For example, the following query returns only instances of BankAccount: IQueryable<BankAccount> query = from b in context.BillingDetails.OfType<BankAccount>() select b; EntitySQL has OFTYPE operator that does the same thing: string eSqlQuery = @"SELECT VAlUE b FROM OFTYPE(BillingDetails, Model.BankAccount) AS b"; In fact, the above query with OFTYPE operator is a short form of the following query expression that uses TREAT and IS OF operators: string eSqlQuery = @"SELECT VAlUE TREAT(b as Model.BankAccount)                       FROM BillingDetails AS b                       WHERE b IS OF(Model.BankAccount)"; (Note that in the above query, Model.BankAccount is the fully qualified name for BankAccount class. You need to change "Model" with your own namespace name.) Table per Class Hierarchy (TPH)An entire class hierarchy can be mapped to a single table. This table includes columns for all properties of all classes in the hierarchy. The concrete subclass represented by a particular row is identified by the value of a type discriminator column. You don’t have to do anything special in Code First to enable TPH. It's the default inheritance mapping strategy: This mapping strategy is a winner in terms of both performance and simplicity. It’s the best-performing way to represent polymorphism—both polymorphic and nonpolymorphic queries perform well—and it’s even easy to implement by hand. Ad-hoc reporting is possible without complex joins or unions. Schema evolution is straightforward. Discriminator Column As you can see in the DB schema above, Code First has to add a special column to distinguish between persistent classes: the discriminator. This isn’t a property of the persistent class in our object model; it’s used internally by EF Code First. By default, the column name is "Discriminator", and its type is string. The values defaults to the persistent class names —in this case, “BankAccount” or “CreditCard”. EF Code First automatically sets and retrieves the discriminator values. TPH Requires Properties in SubClasses to be Nullable in the Database TPH has one major problem: Columns for properties declared by subclasses will be nullable in the database. For example, Code First created an (INT, NULL) column to map CardType property in CreditCard class. However, in a typical mapping scenario, Code First always creates an (INT, NOT NULL) column in the database for an int property in persistent class. But in this case, since BankAccount instance won’t have a CardType property, the CardType field must be NULL for that row so Code First creates an (INT, NULL) instead. If your subclasses each define several non-nullable properties, the loss of NOT NULL constraints may be a serious problem from the point of view of data integrity. TPH Violates the Third Normal FormAnother important issue is normalization. We’ve created functional dependencies between nonkey columns, violating the third normal form. Basically, the value of Discriminator column determines the corresponding values of the columns that belong to the subclasses (e.g. BankName) but Discriminator is not part of the primary key for the table. As always, denormalization for performance can be misleading, because it sacrifices long-term stability, maintainability, and the integrity of data for immediate gains that may be also achieved by proper optimization of the SQL execution plans (in other words, ask your DBA). Generated SQL QueryLet's take a look at the SQL statements that EF Code First sends to the database when we write queries in LINQ to Entities or EntitySQL. For example, the polymorphic query for BillingDetails that you saw, generates the following SQL statement: SELECT  [Extent1].[Discriminator] AS [Discriminator],  [Extent1].[BillingDetailId] AS [BillingDetailId],  [Extent1].[Owner] AS [Owner],  [Extent1].[Number] AS [Number],  [Extent1].[BankName] AS [BankName],  [Extent1].[Swift] AS [Swift],  [Extent1].[CardType] AS [CardType],  [Extent1].[ExpiryMonth] AS [ExpiryMonth],  [Extent1].[ExpiryYear] AS [ExpiryYear] FROM [dbo].[BillingDetails] AS [Extent1] WHERE [Extent1].[Discriminator] IN ('BankAccount','CreditCard') Or the non-polymorphic query for the BankAccount subclass generates this SQL statement: SELECT  [Extent1].[BillingDetailId] AS [BillingDetailId],  [Extent1].[Owner] AS [Owner],  [Extent1].[Number] AS [Number],  [Extent1].[BankName] AS [BankName],  [Extent1].[Swift] AS [Swift] FROM [dbo].[BillingDetails] AS [Extent1] WHERE [Extent1].[Discriminator] = 'BankAccount' Note how Code First adds a restriction on the discriminator column and also how it only selects those columns that belong to BankAccount entity. Change Discriminator Column Data Type and Values With Fluent API Sometimes, especially in legacy schemas, you need to override the conventions for the discriminator column so that Code First can work with the schema. The following fluent API code will change the discriminator column name to "BillingDetailType" and the values to "BA" and "CC" for BankAccount and CreditCard respectively: protected override void OnModelCreating(System.Data.Entity.ModelConfiguration.ModelBuilder modelBuilder) {     modelBuilder.Entity<BillingDetail>()                 .Map<BankAccount>(m => m.Requires("BillingDetailType").HasValue("BA"))                 .Map<CreditCard>(m => m.Requires("BillingDetailType").HasValue("CC")); } Also, changing the data type of discriminator column is interesting. In the above code, we passed strings to HasValue method but this method has been defined to accepts a type of object: public void HasValue(object value); Therefore, if for example we pass a value of type int to it then Code First not only use our desired values (i.e. 1 & 2) in the discriminator column but also changes the column type to be (INT, NOT NULL): modelBuilder.Entity<BillingDetail>()             .Map<BankAccount>(m => m.Requires("BillingDetailType").HasValue(1))             .Map<CreditCard>(m => m.Requires("BillingDetailType").HasValue(2)); SummaryIn this post we learned about Table per Hierarchy as the default mapping strategy in Code First. The disadvantages of the TPH strategy may be too serious for your design—after all, denormalized schemas can become a major burden in the long run. Your DBA may not like it at all. In the next post, we will learn about Table per Type (TPT) strategy that doesn’t expose you to this problem. References ADO.NET team blog Java Persistence with Hibernate book a { text-decoration: none; } a:visited { color: Blue; } .title { padding-bottom: 5px; font-family: Segoe UI; font-size: 11pt; font-weight: bold; padding-top: 15px; } .code, .typeName { font-family: consolas; } .typeName { color: #2b91af; } .padTop5 { padding-top: 5px; } .padTop10 { padding-top: 10px; } p.MsoNormal { margin-top: 0in; margin-right: 0in; margin-bottom: 10.0pt; margin-left: 0in; line-height: 115%; font-size: 11.0pt; font-family: "Calibri" , "sans-serif"; }

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• SQL SERVER – Securing TRUNCATE Permissions in SQL Server

  - by pinaldave

  Download the Script of this article from here. On December 11, 2010, Vinod Kumar, a Databases & BI technology evangelist from Microsoft Corporation, graced Ahmedabad by spending some time with the Community during the Community Tech Days (CTD) event. As he was running through a few demos, Vinod asked the audience one of the most fundamental and common interview questions – “What is the difference between a DELETE and TRUNCATE?“ Ahmedabad SQL Server User Group Expert Nakul Vachhrajani has come up with excellent solutions of the same. I must congratulate Nakul for this excellent solution and as a encouragement to User Group member, I am publishing the same article over here. Nakul Vachhrajani is a Software Specialist and systems development professional with Patni Computer Systems Limited. He has functional experience spanning legacy code deprecation, system design, documentation, development, implementation, testing, maintenance and support of complex systems, providing business intelligence solutions, database administration, performance tuning, optimization, product management, release engineering, process definition and implementation. He has comprehensive grasp on Database Administration, Development and Implementation with MS SQL Server and C, C++, Visual C++/C#. He has about 6 years of total experience in information technology. Nakul is an member of the Ahmedabad and Gandhinagar SQL Server User Groups, and actively contributes to the community by actively participating in multiple forums and websites like SQLAuthority.com, BeyondRelational.com, SQLServerCentral.com and many others. Please note: The opinions expressed herein are Nakul own personal opinions and do not represent his employer’s view in anyway. All data from everywhere here on Earth go through a series of  four distinct operations, identified by the words: CREATE, READ, UPDATE and DELETE, or simply, CRUD. Putting in Microsoft SQL Server terms, is the process goes like this: INSERT, SELECT, UPDATE and DELETE/TRUNCATE. Quite a few interesting responses were received and evaluated live during the session. To summarize them, the most important similarity that came out was that both DELETE and TRUNCATE participate in transactions. The major differences (not all) that came out of the exercise were: DELETE: DELETE supports a WHERE clause DELETE removes rows from a table, row-by-row Because DELETE moves row-by-row, it acquires a row-level lock Depending upon the recovery model of the database, DELETE is a fully-logged operation. Because DELETE moves row-by-row, it can fire off triggers TRUNCATE: TRUNCATE does not support a WHERE clause TRUNCATE works by directly removing the individual data pages of a table TRUNCATE directly occupies a table-level lock. (Because a lock is acquired, and because TRUNCATE can also participate in a transaction, it has to be a logged operation) TRUNCATE is, therefore, a minimally-logged operation; again, this depends upon the recovery model of the database Triggers are not fired when TRUNCATE is used (because individual row deletions are not logged) Finally, Vinod popped the big homework question that must be critically analyzed: “We know that we can restrict a DELETE operation to a particular user, but how can we restrict the TRUNCATE operation to a particular user?” After returning home and having a nice cup of coffee, I noticed that my gray cells immediately started to work. Below was the result of my research. As what is always said, the devil is in the details. Upon looking at the Permissions section for the TRUNCATE statement in Books On Line, the following jumps right out: “The minimum permission required is ALTER on table_name. TRUNCATE TABLE permissions default to the table owner, members of the sysadmin fixed server role, and the db_owner and db_ddladmin fixed database roles, and are not transferable. However, you can incorporate the TRUNCATE TABLE statement within a module, such as a stored procedure, and grant appropriate permissions to the module using the EXECUTE AS clause.“ Now, what does this mean? Unlike DELETE, one cannot directly assign permissions to a user/set of users allowing or revoking TRUNCATE rights. However, there is a way to circumvent this. It is important to recall that in Microsoft SQL Server, database engine security surrounds the concept of a “securable”, which is any object like a table, stored procedure, trigger, etc. Rights are assigned to a principal on a securable. Refer to the image below (taken from the SQL Server Books On Line). urable”, which is any object like a table, stored procedure, trigger, etc. Rights are assigned to a principal on a securable. Refer to the image below (taken from the SQL Server Books On Line). SETTING UP THE ENVIRONMENT – (01A_Truncate Table Permissions.sql) Script Provided at the end of the article. By the end of this demo, one will be able to do all the CRUD operations, except the TRUNCATE, and the other will only be able to execute the TRUNCATE. All you will need for this test is any edition of SQL Server 2008. (With minor changes, these scripts can be made to work with SQL 2005.) We begin by creating the following: 1.       A test database 2.        Two database roles: associated logins and users 3.       Switch over to the test database and create a test table. Then, add some data into it. I am using row constructors, which is new to SQL 2008. Creating the modules that will be used to enforce permissions 1.       We have already created one of the modules that we will be assigning permissions to. That module is the table: TruncatePermissionsTest 2.       We will now create two stored procedures; one is for the DELETE operation and the other for the TRUNCATE operation. Please note that for all practical purposes, the end result is the same – all data from the table TruncatePermissionsTest is removed Assigning the permissions Now comes the most important part of the demonstration – assigning permissions. A permissions matrix can be worked out as under: To apply the security rights, we use the GRANT and DENY clauses, as under: That’s it! We are now ready for our big test! THE TEST (01B_Truncate Table Test Queries.sql) Script Provided at the end of the article. I will now need two separate SSMS connections, one with the login AllowedTruncate and the other with the login RestrictedTruncate. Running the test is simple; all that’s required is to run through the script – 01B_Truncate Table Test Queries.sql. What I will demonstrate here via screen-shots is the behavior of SQL Server when logged in as the AllowedTruncate user. There are a few other combinations than what are highlighted here. I will leave the reader the right to explore the behavior of the RestrictedTruncate user and these additional scenarios, as a form of self-study. 1.       Testing SELECT permissions 2.       Testing TRUNCATE permissions (Remember, “deny by default”?) 3.       Trying to circumvent security by trying to TRUNCATE the table using the stored procedure Hence, we have now proved that a user can indeed be assigned permissions to specifically assign TRUNCATE permissions. I also hope that the above has sparked curiosity towards putting some security around the probably “destructive” operations of DELETE and TRUNCATE. I would like to wish each and every one of the readers a very happy and secure time with Microsoft SQL Server. (Please find the scripts – 01A_Truncate Table Permissions.sql and 01B_Truncate Table Test Queries.sql that have been used in this demonstration. Please note that these scripts contain purely test-level code only. These scripts must not, at any cost, be used in the reader’s production environments). 01A_Truncate Table Permissions.sql /* ***************************************************************************************************************** Developed By          : Nakul Vachhrajani Functionality         : This demo is focused on how to allow only TRUNCATE permissions to a particular user How to Use            : 1. Run through, step-by-step through the sequence till Step 08 to create a test database 2. Switch over to the "Truncate Table Test Queries.sql" and execute it step-by-step in two different SSMS windows, one where you have logged in as 'RestrictedTruncate', and the other as 'AllowedTruncate' 3. Come back to "Truncate Table Permissions.sql" 4. Execute Step 10 to cleanup! Modifications         : December 13, 2010 - NAV - Updated to add a security matrix and improve code readability when applying security December 12, 2010 - NAV - Created ***************************************************************************************************************** */ -- Step 01: Create a new test database CREATE DATABASE TruncateTestDB GO USE TruncateTestDB GO -- Step 02: Add roles and users to demonstrate the security of the Truncate operation -- 2a. Create the new roles CREATE ROLE AllowedTruncateRole; GO CREATE ROLE RestrictedTruncateRole; GO -- 2b. Create new logins CREATE LOGIN AllowedTruncate WITH PASSWORD = 'truncate@2010', CHECK_POLICY = ON GO CREATE LOGIN RestrictedTruncate WITH PASSWORD = 'truncate@2010', CHECK_POLICY = ON GO -- 2c. Create new Users using the roles and logins created aboave CREATE USER TruncateUser FOR LOGIN AllowedTruncate WITH DEFAULT_SCHEMA = dbo GO CREATE USER NoTruncateUser FOR LOGIN RestrictedTruncate WITH DEFAULT_SCHEMA = dbo GO -- 2d. Add the newly created login to the newly created role sp_addrolemember 'AllowedTruncateRole','TruncateUser' GO sp_addrolemember 'RestrictedTruncateRole','NoTruncateUser' GO -- Step 03: Change over to the test database USE TruncateTestDB GO -- Step 04: Create a test table within the test databse CREATE TABLE TruncatePermissionsTest (Id INT IDENTITY(1,1), Name NVARCHAR(50)) GO -- Step 05: Populate the required data INSERT INTO TruncatePermissionsTest VALUES (N'Delhi'), (N'Mumbai'), (N'Ahmedabad') GO -- Step 06: Encapsulate the DELETE within another module CREATE PROCEDURE proc_DeleteMyTable WITH EXECUTE AS SELF AS DELETE FROM TruncateTestDB..TruncatePermissionsTest GO -- Step 07: Encapsulate the TRUNCATE within another module CREATE PROCEDURE proc_TruncateMyTable WITH EXECUTE AS SELF AS TRUNCATE TABLE TruncateTestDB..TruncatePermissionsTest GO -- Step 08: Apply Security /* *****************************SECURITY MATRIX*************************************** =================================================================================== Object                   | Permissions |                 Login |             | AllowedTruncate   |   RestrictedTruncate |             |User:NoTruncateUser|   User:TruncateUser =================================================================================== TruncatePermissionsTest  | SELECT,     |      GRANT        |      (Default) | INSERT,     |                   | | UPDATE,     |                   | | DELETE      |                   | -------------------------+-------------+-------------------+----------------------- TruncatePermissionsTest  | ALTER       |      DENY         |      (Default) -------------------------+-------------+----*/----------------+----------------------- proc_DeleteMyTable | EXECUTE | GRANT | DENY -------------------------+-------------+-------------------+----------------------- proc_TruncateMyTable | EXECUTE | DENY | GRANT -------------------------+-------------+-------------------+----------------------- *****************************SECURITY MATRIX*************************************** */ /* Table: TruncatePermissionsTest*/ GRANT SELECT, INSERT, UPDATE, DELETE ON TruncateTestDB..TruncatePermissionsTest TO NoTruncateUser GO DENY ALTER ON TruncateTestDB..TruncatePermissionsTest TO NoTruncateUser GO /* Procedure: proc_DeleteMyTable*/ GRANT EXECUTE ON TruncateTestDB..proc_DeleteMyTable TO NoTruncateUser GO DENY EXECUTE ON TruncateTestDB..proc_DeleteMyTable TO TruncateUser GO /* Procedure: proc_TruncateMyTable*/ DENY EXECUTE ON TruncateTestDB..proc_TruncateMyTable TO NoTruncateUser GO GRANT EXECUTE ON TruncateTestDB..proc_TruncateMyTable TO TruncateUser GO -- Step 09: Test --Switch over to the "Truncate Table Test Queries.sql" and execute it step-by-step in two different SSMS windows: --    1. one where you have logged in as 'RestrictedTruncate', and --    2. the other as 'AllowedTruncate' -- Step 10: Cleanup sp_droprolemember 'AllowedTruncateRole','TruncateUser' GO sp_droprolemember 'RestrictedTruncateRole','NoTruncateUser' GO DROP USER TruncateUser GO DROP USER NoTruncateUser GO DROP LOGIN AllowedTruncate GO DROP LOGIN RestrictedTruncate GO DROP ROLE AllowedTruncateRole GO DROP ROLE RestrictedTruncateRole GO USE MASTER GO DROP DATABASE TruncateTestDB GO 01B_Truncate Table Test Queries.sql /* ***************************************************************************************************************** Developed By          : Nakul Vachhrajani Functionality         : This demo is focused on how to allow only TRUNCATE permissions to a particular user How to Use            : 1. Switch over to this from "Truncate Table Permissions.sql", Step #09 2. Execute this step-by-step in two different SSMS windows a. One where you have logged in as 'RestrictedTruncate', and b. The other as 'AllowedTruncate' 3. Return back to "Truncate Table Permissions.sql" 4. Execute Step 10 to cleanup! Modifications         : December 12, 2010 - NAV - Created ***************************************************************************************************************** */ -- Step 09A: Switch to the test database USE TruncateTestDB GO -- Step 09B: Ensure that we have valid data SELECT * FROM TruncatePermissionsTest GO -- (Expected: Following error will occur if logged in as "AllowedTruncate") -- Msg 229, Level 14, State 5, Line 1 -- The SELECT permission was denied on the object 'TruncatePermissionsTest', database 'TruncateTestDB', schema 'dbo'. --Step 09C: Attempt to Truncate Data from the table without using the stored procedure TRUNCATE TABLE TruncatePermissionsTest GO -- (Expected: Following error will occur) --  Msg 1088, Level 16, State 7, Line 2 --  Cannot find the object "TruncatePermissionsTest" because it does not exist or you do not have permissions. -- Step 09D:Regenerate Test Data INSERT INTO TruncatePermissionsTest VALUES (N'London'), (N'Paris'), (N'Berlin') GO -- (Expected: Following error will occur if logged in as "AllowedTruncate") -- Msg 229, Level 14, State 5, Line 1 -- The INSERT permission was denied on the object 'TruncatePermissionsTest', database 'TruncateTestDB', schema 'dbo'. --Step 09E: Attempt to Truncate Data from the table using the stored procedure EXEC proc_TruncateMyTable GO -- (Expected: Will execute successfully with 'AllowedTruncate' user, will error out as under with 'RestrictedTruncate') -- Msg 229, Level 14, State 5, Procedure proc_TruncateMyTable, Line 1 -- The EXECUTE permission was denied on the object 'proc_TruncateMyTable', database 'TruncateTestDB', schema 'dbo'. -- Step 09F:Regenerate Test Data INSERT INTO TruncatePermissionsTest VALUES (N'Madrid'), (N'Rome'), (N'Athens') GO --Step 09G: Attempt to Delete Data from the table without using the stored procedure DELETE FROM TruncatePermissionsTest GO -- (Expected: Following error will occur if logged in as "AllowedTruncate") -- Msg 229, Level 14, State 5, Line 2 -- The DELETE permission was denied on the object 'TruncatePermissionsTest', database 'TruncateTestDB', schema 'dbo'. -- Step 09H:Regenerate Test Data INSERT INTO TruncatePermissionsTest VALUES (N'Spain'), (N'Italy'), (N'Greece') GO --Step 09I: Attempt to Delete Data from the table using the stored procedure EXEC proc_DeleteMyTable GO -- (Expected: Following error will occur if logged in as "AllowedTruncate") -- Msg 229, Level 14, State 5, Procedure proc_DeleteMyTable, Line 1 -- The EXECUTE permission was denied on the object 'proc_DeleteMyTable', database 'TruncateTestDB', schema 'dbo'. --Step 09J: Close this SSMS window and return back to "Truncate Table Permissions.sql" Thank you Nakul to take up the challenge and prove that Ahmedabad and Gandhinagar SQL Server User Group has talent to solve difficult problems. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Best Practices, Pinal Dave, Readers Contribution, Readers Question, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Security, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Using an alternate search platform in Commerce Server 2009

  - by Lewis Benge

  Although Microsoft Commerce Server 2009's architecture is built upon Microsoft SQL Server, and has the full power of the SQL Full Text Indexing Search Platform, there are time however when you may require a richer or alternate search platform. One of these scenarios if when you want to implement a faceted (refinement) search into your site, which provides dynamic refinements based on the search results dataset. Faceted search is becoming popular in most online retail environments as a way of providing an enhanced user experience when browsing a larger catalogue. This is powerful for two reasons, firstly with a traditional search it is down to a user to think of a search term suitable for the product they are trying to find. This typically will not return similar products or help in any way to refine a larger dataset. Faceted searches on the other hand provide a comprehensive list of product properties, grouped together by similarity to help the user narrow down the results returned, as the user progressively restricts the search criteria by selecting additional criteria to search again, these facets needs to continually refresh. The whole experience allows users to explore alternate brands, price-ranges, or find products they hadn't initially thought of or where looking for in a bid to enhance cross sell in the retail environment. The second advantage of this type of search from a business perspective is also to harvest the search result to start to profile your user. Even though anonymous users may routinely visit your site, and will not necessarily register or complete a transaction to build up marketing data- profiling, you can still achieve the same result by recording search facets used within the search sequence. Below is a faceted search scenario generated from eBay using the search term "server". By creating a search profile of clicking through Computer & Networking -> Servers -> Dell - > New and recording this information against my user profile you can start to predict with a lot more certainty what types of products I am interested in. This will allow you to apply shopping-cart analysis against your search data and provide great cross-sale or advertising opportunity, or personalise the user experience based on your prediction of what the user may be interested in. This type of search is extremely beneficial in e-Commerce environments but achieving it out of the box with Commerce Server and SQL Full Text indexing can be challenging. In many deployments it is often easier to use an alternate search platform such as Microsoft's FAST, Apache SOLR, or Endecca, however you still want these products to integrate natively into Commerce Server to ensure that up-to-date inventory information is presented, profile information is generated, and you provide a consistant API. To do so we make the most of the Commerce Server extensibilty points called operation sequence components. In this example I will be talking about Apache Solr hosted on Apache Tomcat, in this specific example I have used the SolrNet C# library to interface to the Java platform. Also I am not going to talk about Solr configuration of indexing – but in a production envionrment this would typically happen by using Powershell to call the Commerce Server management webservice to export your catalog as XML, apply an XSLT transform to the file to make it conform to SOLR and use a simple HTTP Post to send it to the search enginge for indexing. Essentially a sequance component is a step in a serial workflow used to call a data repository (which in most cases is usually the Commerce Server pipelines or databases) and map to and from a Commerce Entity object whilst enforcing any business rules. So the first step in the process is to add a new class library to your existing Commerce Server site. You will need to use a new library as Sequence Components will need to be strongly named to be deployed. Once you are inside of your new project, add a new class file and add a reference to the Microsoft.Commerce.Providers, Microsoft.Commerce.Contracts and the Microsoft.Commerce.Broker assemblies. Now make your new class derive from the base object Microsoft.Commerce.Providers.Components.OperationSequanceComponent and overide the ExecuteQueryMethod. Your screen will then look something similar ot this: As all we are doing on this component is conducting a search we are only interested in the ExecuteQuery method. This method accepts three arguments, queryOperation, operationCache, and response. The queryOperation will be the object in which we receive our search parameters, the cache allows access to the Commerce Server cache allowing us to store regulary accessed information, and the response object is the object which we will return the result of our search upon. Inside this method is simply where we are going to inject our logic for our third party search platform. As I am not going to explain the inner-workings of actually making a SOLR call, I'll simply provide the sample code here. I would highly recommend however looking at the SolrNet wiki as they have some great explinations of how the API works. What you will find however is that there are some further extensions required when attempting to integrate a custom search provider. Firstly you out of the box the CommerceQueryOperation you will receive into the method when conducting a search against a catalog is specifically geared towards a SQL Full Text Search with properties such as a Where clause. To make the operation you receive more relevant you will need to create another class, this time derived from Microsoft.Commerce.Contract.Messages.CommerceSearchCriteria and within this you need to detail the properties you will require to allow you to submit as parameters to the SOLR search API. My exmaple looks like this: [DataContract(Namespace = "http://schemas.microsoft.com/microsoft-multi-channel-commerce-foundation/types/2008/03")] public class CommerceCatalogSolrSearch : CommerceSearchCriteria { private Dictionary<string, string> _facetQueries;   public CommerceCatalogSolrSearch() { _facetQueries = new Dictionary<String, String>();   }     public Dictionary<String, String> FacetQueries { get { return _facetQueries; } set { _facetQueries = value; } }   public String SearchPhrase{ get; set; } public int PageIndex { get; set; } public int PageSize { get; set; } public IEnumerable<String> Facets { get; set; }   public string Sort { get; set; }   public new int FirstItemIndex { get { return (PageIndex-1)*PageSize; } }   public int LastItemIndex { get { return FirstItemIndex + PageSize; } } }  To allow you to construct a CommerceQueryOperation call within the API you will also need to construct another class to derived from Microsoft.Commerce.Common.MessageBuilders.CommerceSearchCriteriaBuilder and is simply used to construct an instance of the CommerceQueryOperation you have just created and expose the properties you want set. My Message builder looks like this: public class CommerceCatalogSolrSearchBuilder : CommerceSearchCriteriaBuilder { private CommerceCatalogSolrSearch _solrSearch;   public CommerceCatalogSolrSearchBuilder() { _solrSearch = new CommerceCatalogSolrSearch(); }   public String SearchPhrase { get { return _solrSearch.SearchPhrase; } set { _solrSearch.SearchPhrase = value; } }   public int PageIndex { get { return _solrSearch.PageIndex; } set { _solrSearch.PageIndex = value; } }   public int PageSize { get { return _solrSearch.PageSize; } set { _solrSearch.PageSize = value; } }   public Dictionary<String,String> FacetQueries { get { return _solrSearch.FacetQueries; } set { _solrSearch.FacetQueries = value; } }   public String[] Facets { get { return _solrSearch.Facets.ToArray(); } set { _solrSearch.Facets = value; } } public override CommerceSearchCriteria ToSearchCriteria() { return _solrSearch; } }  Once you have these two classes in place you can now safely cast the CommerceOperation you receive as an argument of the overidden ExecuteQuery method in the SequenceComponent to the CommerceCatalogSolrSearch operation you have just created, e.g. public CommerceCatalogSolrSearch TryGetSearchCriteria(CommerceOperation operation) { var searchCriteria = operation as CommerceQueryOperation; if (searchCriteria == null) throw new Exception("No search criteria present");   var local = (CommerceCatalogSolrSearch) searchCriteria.SearchCriteria; if (local == null) throw new Exception("Unexpected Search Criteria in Operation");   return local; }  Now you have all of your search parameters present, you can go off an call the external search platform API. You will of-course get proprietry objects returned, so the next step in the process is to convert the results being returned back into CommerceEntities. You do this via another extensibility point within the Commerce Server API called translatators. Translators are another separate class, this time derived inheriting the interface Microsoft.Commerce.Providers.Translators.IToCommerceEntityTranslator . As you can imaginge this interface is specific for the conversion of the object TO a CommerceEntity, you will need to implement a separate interface if you also need to go in the opposite direction. If you implement the required method for the interace you will get a single translate method which has a source onkect, destination CommerceEntity, and a collection of properties as arguments. For simplicity sake in this example I have hard-coded the mappings, however best practice would dictate you map the objects using your metadatadefintions.xml file . Once complete your translator would look something like the following: public class SolrEntityTranslator : IToCommerceEntityTranslator { #region IToCommerceEntityTranslator Members   public void Translate(object source, CommerceEntity destinationCommerceEntity, CommercePropertyCollection propertiesToReturn) { if (source.GetType().Equals(typeof (SearchProduct))) { var searchResult = (SearchProduct) source;   destinationCommerceEntity.Id = searchResult.ProductId; destinationCommerceEntity.SetPropertyValue("DisplayName", searchResult.Title); destinationCommerceEntity.ModelName = "Product";   } }  Once you have a translator in place you can then safely map the results of your search platform into Commerce Entities and attach them on to the CommerceResponse object in a fashion similar to this: foreach (SearchProduct result in matchingProducts) { var destinationEntity = new CommerceEntity(_returnModelName);   Translator.ToCommerceEntity(result, destinationEntity, _queryOperation.Model.Properties); response.CommerceEntities.Add(destinationEntity); }  In SOLR I actually have two objects being returned – a product, and a collection of facets so I have an additional translator for facet (which maps to a custom facet CommerceEntity) and my facet response from SOLR is passed into the Translator helper class seperatley. When all of this is pieced together you have sucessfully completed the extensiblity point coding. You would have created a new OperationSequanceComponent, a custom SearchCritiera object and message builder class, and translators to convert the objects into Commerce Entities. Now you simply need to configure them, and can start calling them in your code. Make sure you sign you assembly, compile it and identiy its signature. Next you need to put this a reference of your new assembly into the Channel.Config configuration file replacing that of the existing SQL Full Text component: You will also need to add your translators to the Translators node of your Channel.Config too: Lastly add any custom CommerceEntities you have developed to your MetaDataDefintions.xml file. Your configuration is now complete, and you should now be able to happily make a call to the Commerce Foundation API, which will act as a proxy to your third party search platform and return back CommerceEntities of your search results. If you require data to be enriched, or logged, or any other logic applied then simply add further sequence components into the OperationSequence (obviously keeping the search response first) to the node of your Channel.Config file. Now to call your code you simply request it as per any other CommerceQuery operation, but taking into account you may be receiving multiple types of CommerceEntity returned: public KeyValuePair<FacetCollection ,List<Product>> DoFacetedProductQuerySearch(string searchPhrase, string orderKey, string sortOrder, int recordIndex, int recordsPerPage, Dictionary<string, string> facetQueries, out int totalItemCount) { var products = new List<Product>(); var query = new CommerceQuery<CatalogEntity, CommerceCatalogSolrSearchBuilder>();   query.SearchCriteria.PageIndex = recordIndex; query.SearchCriteria.PageSize = recordsPerPage; query.SearchCriteria.SearchPhrase = searchPhrase; query.SearchCriteria.FacetQueries = facetQueries;     totalItemCount = 0; CommerceResponse response = SiteContext.ProcessRequest(query.ToRequest()); var queryResponse = response.OperationResponses[0] as CommerceQueryOperationResponse;   // No results. Return the empty list if (queryResponse != null && queryResponse.CommerceEntities.Count == 0) return new KeyValuePair<FacetCollection, List<Product>>();   totalItemCount = (int)queryResponse.TotalItemCount;   // Prepare a multi-operation to retrieve the product variants var multiOperation = new CommerceMultiOperation();     //Add products to results foreach (Product product in queryResponse.CommerceEntities.Where(x => x.ModelName == "Product")) { var productQuery = new CommerceQuery<Product>(Product.ModelNameDefinition); productQuery.SearchCriteria.Model.Id = product.Id; productQuery.SearchCriteria.Model.CatalogId = product.CatalogId;   var variantQuery = new CommerceQueryRelatedItem<Variant>(Product.RelationshipName.Variants);   productQuery.RelatedOperations.Add(variantQuery);   multiOperation.Add(productQuery); }   CommerceResponse variantsResponse = SiteContext.ProcessRequest(multiOperation.ToRequest()); foreach (CommerceQueryOperationResponse queryOpResponse in variantsResponse.OperationResponses) { if (queryOpResponse.CommerceEntities.Count() > 0) products.Add(queryOpResponse.CommerceEntities[0]); }   //Get facet collection FacetCollection facetCollection = queryResponse.CommerceEntities.Where(x => x.ModelName == "FacetCollection").FirstOrDefault();     return new KeyValuePair<FacetCollection, List<Product>>(facetCollection, products); }    ..And that is it – simply a few classes and some configuration will allow you to extend the Commerce Server query operations to call a third party search platform, whilst still maintaing a unifed API in the remainder of your code. This logic stands for any extensibility within CommerceServer, which requires excution in a serial fashioon such as call to LOB systems or web service to validate or enrich data. Feel free to use this example on other applications, and if you have any questions please feel free to e-mail and I'll help out where I can!

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• CodePlex Daily Summary for Thursday, April 01, 2010

  CodePlex Daily Summary for Thursday, April 01, 2010New ProjectsASP.NET Bing Maps: Extensible and easy to use, this is ASP.NET Bing Maps Control. Drag & Drop and is ready to go. You can configure map mode, map style, add a PushPin...Bricks' Bane: Bricks' Bane is a brick breaker game developed using XNA and published on XBox Live Indy Games. Source code includes a C# library useful for game d...cURL for dotnet: Another dotnet binding for libcurl see http://curl.haxx.se for more info about cURL/libcurlCustom Functoid que acessa o banco de dados SQL: Functoid para Biztalk Server 2006 utilizando dados do SQL Server 2005FEI STU Pharmacy e-shop: Elektronicky obchod s liekmi Vytvorte jednoduchú klient-server aplikáciu, ktorá bude realizovať elektronický obchod s liekmi. Moduly: 1. e-shop f...Flavours of Wix: Investigating building DSL's to create installers based on WIXFulcrum: Fulcrum is a code generation framework built on top of the T4 technology in Visual Studio. GreviousAngel: New team projectHabanero Inferno: Habanero Inferno coming soon.Kawo Pounga !: A useless game !!!LetsXNA!!: This is a project created by members of Linked In group Lets XNA!! to build a XNA game and have fun in the process. The goal is to build a simple ...Linq To Naver , Custom Linq Provider for Naver searchengine OpenAPI: <project name>Linq to Naver </project name> <programming language>C#, CSharp</programming language>LocoSync: LocoSync is a file Syncronization/Backup/Archiver program, which is easily extendable. It is easy to add new syncronization methods using C# code.Natural Language Processing: Natural Language ProcessingNop Commerce Azure: Ce projet vous permet de mettre en place rapidement et simplement votre site d'e-commerce en ligne en bénéficiant de tous les avantages de la plate...Nwinsock: Nwinsock is a component for network , Object Transfer, Pocket Compression, Support TCP,UDP Protocol, Thread Base OnTime: OnTime is a simple program from that matching game back in the day just to bring light to programming techniques. It's developed in C#.?OpenGL ES 2.0 Compact Framework Wrapper: OpenGL ES 2.0 wrapper for .NET Compact Framework. Developed on HTC HD 2 device but should run on any Windows Mobile device that has the correct lib...ortaknokta: bu proje: birkaç kişinin bir araya gelip, istedikleri konularda tartışma yapmalarına olanak saglamak icin hazırlanmaya çalışıl maktadır. P-Data: P-Data es una herramienta que permite obtener información procedente de archivos de datos (Data Profiling) a través de consultas SQL, automatizando...PowerAuras: Addon for World of Warcraft - Displays effects on screen at different conditionsPowerShell ToodleDo Module: PowerShell Module for interacting with toodledo.com online To-Do list site. RSS Reader for Windows Phone 7: This RSS Reader application for windows 7Streamlet Containers: This is my implement of STL-style containers, including a dynamic array, a double-linked list and an r-b-tree. Just for practice. Please feel free...Troav: Social encyclopedia built using c# and the Orchard frameworkUmbraco App_Code/Usercontrol Editor: Package for Umbraco to add App_Code and usercontrol editing to the Developer section of the Umbraco administration system. Will support GeSHi editi...Vczh Reactive Programming Library: Reactive programming library provide a stream or state machine view to use .NET eventsWhoIs XML API: The project uses the public WhoIs XML API service (http://www.whoisxmlapi.com/) to obtain detailed details. The project is written in C# and serial...WPF FlowDocument Examples for VS2008 and VS2010: WPF Text Samples (especially FlowDocument) on the various possible effects: sub- and super-script, ruby (a.k.a. furigana), and various others...You are here (for Windows Mobile): This sample shows you how to play a *.wav file on your device with Compact Framework 2.0. There is better support for playing music on Compact F...New Releases( λunula ): Lunula 0.4.0: Changelog Implemented a virtual machine. Implemented a compiler for the virtual machine. Added first-class continuations (call/cc) Removed co...Alter gear SQL index Management: Setup 1.0.1: Changes Test connection - successful message Connection string timeout property added Setup Project added to project source code Possible issu...ASP.NET Bing Maps: ASP.NET Bing Maps 0.1b: Project Description Extensible and easy to use, this is ASP.NET Bing Maps Control. Drag & Drop and is ready to go. You can configure map mode, map ...ASP.NET MVC Validation Library: ASP.NET MVC Validation Library 1.3: Changes since 1.2: - Support remote validation - Support custom server-side validation - The design of validation attribute is improved Note: test...BigDays 2010: HelfenHelfen - v1: PLEASE NOTE: This project is published under the Microsoft Public License (Ms-PL). http://bigdays10.codeplex.com/license IT IS A DEMO SOLUTION FOR...Caps - Manage your collection!: Caps Console 0.1.4.0 Alpha: This is preview release (Alpha quality). This release contains only limited amount of fixes and new features from user point of view. Major focus f...CSharpQuery: Version 1.0: This version is stable. Please report any possible bugs. The next release will include a sample project and index management tools. Until then pl...Custom Functoid que acessa o banco de dados SQL: Custom Functoid SQL Server: Solução do Visual Studio com código fonte e script SQL do functoid em BiztalkDawf: Dual Audio Workflow: Beta 3: Suppose if two good audio events overlap in time with a videoevent of interest. (This can only happen if PluralEyes isn't used on everything). Befo...Dirac codec user interface: Dirac User Interface (checkin 37132): Same as 36795 version, but done with the last source code.DotNetNuke® Blog: 04.00.00 RC 3: PLEASE NOTE: You may upgrade an RC 2 install. But please do not upgrade previous version of the Beta releases - please start from RC 2 or 03.05.0...DotNetNuke® Skinning Extensions: SimpleTitle Skin Object: This is an example skin object that only renders the "page name" if used in a skin and the "module title" if used in a container. No extra spans, c...Fulcrum: Fulcrum v0.9: Initial release of FulcrumHelloTipi Photos Uploader: Version 2010.03.31: De toute petites corrections : - Correction du bouton envoyer - Impossible d'interagir avec l'application quand on uploadkdar: KDAR 0.0.18: KDAR - Kernel Debugger Anti Rootkit - dispacth table's signature bases updated ( many driver's) - scripts refactored - some bug fixedLegend: Legend Libraries: The latest release.Linq To Naver , Custom Linq Provider for Naver searchengine OpenAPI: Linq to Naver: Linq to NaverLive at Education Meta Web-Service: Live at Education Meta Web Service v. 1.0: We're happy to publish final version of Live at Education Meta Web Serivce (LAEMWS). In this release: Huge list of Windows Live ID enabled servic...Live@edu SSO WebPart for MOSS 2007: WebPart 2.0: This release is based on Live@edu Meta Web Service (laemws - http://laemws.codeplex.com). It is highly recomended to use laemws version of webpart,...LocoSync: LocoSync v0.1r2010.03.31 installer: This is the first public release. Unzip and run setup. Or if you have .net 3.5 runtime available download the exetutable and try...Natural Language Processing: test1: testNop Commerce Azure: Nop Commerce Azure: Nop Commerce Full Sources with additionnals Azure Projects.Nwinsock: NWinsock: Nwinsock version 1.0 is hereOpen NFe: DANFe v1.9.8: Correção CSTOpenGL ES 2.0 Compact Framework Wrapper: v0.1 Sources: First rough release. It has a working sample application which renders a triangle with rotation. Don't expect anything great. Just a very early ...patterns & practices - Windows Azure Guidance: Code Drop 3: Second iteration of a-Expense on Azure. This release builds on the previous one and mainly focuses on replacing SQL Azure by Table Storage. We hav...Posh4DNN: Posh4DNN Scripts 2.0: This release greatly increases the speed of installation and incorporates the use of IIS and SQL Server Snap-ins for managing those services. Inst...Process Enactment Tool Framework: PET 1.1: PET Core new intermediate model with arbitrary "clean" relations among objects and several updates of the object fields (see DependencyInterfacesA...Project Tru Tiên: Elements-test V1-fix (v1): Là Elements-test V1 đã được fix các vấn đề sau: - Fix lỗi hiển thị thú cưỡi Hổ Kỳ Lân - Fix hiển thị tab tiếng trung --> sang tiếng việt - Fix hiể...Sentinel - Log Viewer: Sentinel 0.8.1 (nLog support): Build of the 0.8.1 code (svn revision 36823) which included support for both nLog and log4net that has been in SVN for a while but didn't have a bi...sgMotion Animation Library: SgMotion v1.1 (For Sunburn 1.3.1): SgMotion v1.1 (For Sunburn 1.3.1) This release includes both a Windows & Xbox sample. The sample is set to default at Forward rendering, but can e...sTASKedit: sTASKedit 44538 (Developer Alpha): + nearly all fields are viewed in this release for task verification and identifying of unknownsTest Project (ignore): asdf asdf asdf asdf asdf asdf asdf sadf sdf asdf a: ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ;dlf jkasdf ;lkasjdf ...Test Project (ignore): cdscs: csdcacacTroav: Traov20100331 Source Pre-Alpah: This is some experiements with implementing custom modules with Microsoft's Orchard frame work. This is very preliminary, and subject to change.Weather Report WebControls: WebWeatherReport: 主要文件的源代码WhoIs XML API: Initial Release: Initial ReleaseYou are here (for Windows Mobile): CAB file and Source Code: You can find more Controls and samples for Windows Mobile developers at: http://www.beemobile4.netMost Popular ProjectshmrEngineRawrWBFS ManagerASP.NET Ajax LibraryMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitAJAX Control ToolkitWindows Presentation Foundation (WPF)ASP.NETLiveUpload to FacebookMost Active ProjectsRawrGraffiti CMSBase Class LibrariesjQuery Library for SharePoint Web ServicesBlogEngine.NETMicrosoft Biology FoundationN2 CMSLINQ to TwitterManaged Extensibility FrameworkFarseer Physics Engine

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• Load and Web Performance Testing using Visual Studio Ultimate 2010-Part 3

  - by Tarun Arora

  Welcome back once again, in Part 1 of Load and Web Performance Testing using Visual Studio 2010 I talked about why Performance Testing the application is important, the test tools available in Visual Studio Ultimate 2010 and various test rig topologies, in Part 2 of Load and Web Performance Testing using Visual Studio 2010 I discussed the details of web performance & load tests as well as why it’s important to follow a goal based pattern while performance testing your application. In part 3 I’ll be discussing Test Result Analysis, Test Result Drill through, Test Report Generation, Test Run Comparison, Asp.net Profiler and some closing thoughts. Test Results – I see some creepy worms! In Part 2 we put together a web performance test and a load test, lets run the test to see load test to see how the Web site responds to the load simulation. While the load test is running you will be able to see close to real time analysis in the Load Test Analyser window. You can use the Load Test Analyser to conduct load test analysis in three ways: Monitor a running load test - A condensed set of the performance counter data is maintained in memory. To prevent the results memory requirements from growing unbounded, up to 200 samples for each performance counter are maintained. This includes 100 evenly spaced samples that span the current elapsed time of the run and the most recent 100 samples.         After the load test run is completed - The test controller spools all collected performance counter data to a database while the test is running. Additional data, such as timing details and error details, is loaded into the database when the test completes. The performance data for a completed test is loaded from the database and analysed by the Load Test Analyser. Below you can see a screen shot of the summary view, this provides key results in a format that is compact and easy to read. You can also print the load test summary, this is generated after the test has completed or been stopped.         Analyse the load test results of a previously run load test – We’ll see this in the section where i discuss comparison between two test runs. The performance counters can be plotted on the graphs. You also have the option to highlight a selected part of the test and view details, drill down to the user activity chart where you can hover over to see more details of the test run.   Generate Report => Test Run Comparisons The level of reports you can generate using the Load Test Analyser is astonishing. You have the option to create excel reports and conduct side by side analysis of two test results or to track trend analysis. The tools also allows you to export the graph data either to MS Excel or to a CSV file. You can view the ASP.NET profiler report to conduct further analysis as well. View Data and Diagnostic Attachments opens the Choose Diagnostic Data Adapter Attachment dialog box to select an adapter to analyse the result type. For example, you can select an IntelliTrace adapter, click OK and open the IntelliTrace summary for the test agent that was used in the load test.   Compare results This creates a set of reports that compares the data from two load test results using tables and bar charts. I have taken these screen shots from the MSDN documentation, I would highly recommend exploring the wealth of knowledge available on MSDN. Leaving Thoughts While load testing the application with an excessive load for a longer duration of time, i managed to bring the IIS to its knees by piling up a huge queue of requests waiting to be processed. This clearly means that the IIS had run out of threads as all the threads were busy processing existing request, one easy way of fixing this is by increasing the default number of allocated threads, but this might escalate the problem. The better suggestion is to try and drill down to the actual root cause of the problem. When ever the garbage collection runs it stops processing any pages so all requests that come in during that period are queued up, but realistically the garbage collection completes in fraction of a a second. To understand this better lets look at the .net heap, it is divided into large heap and small heap, anything greater than 85kB in size will be allocated to the Large object heap, the Large object heap is non compacting and remember large objects are expensive to move around, so if you are allocating something in the large object heap, make sure that you really need it! The small object heap on the other hand is divided into generations, so all objects that are supposed to be short-lived are suppose to live in Gen-0 and the long living objects eventually move to Gen-2 as garbage collection goes through.  As you can see in the picture below all < 85 KB size objects are first assigned to Gen-0, when Gen-0 fills up and a new object comes in and finds Gen-0 full, the garbage collection process is started, the process checks for all the dead objects and assigns them as the valid candidate for deletion to free up memory and promotes all the remaining objects in Gen-0 to Gen-1. So in the future when ever you clean up Gen-1 you have to clean up Gen-0 as well. When you fill up Gen – 0 again, all of Gen – 1 dead objects are drenched and rest are moved to Gen-2 and Gen-0 objects are moved to Gen-1 to free up Gen-0, but by this time your Garbage collection process has started to take much more time than it usually takes. Now as I mentioned earlier when garbage collection is being run all page requests that come in during that period are queued up. Does this explain why possibly page requests are getting queued up, apart from this it could also be the case that you are waiting for a long running database process to complete.      Lets explore the heap a bit more… What is really a case of crisis is when the objects are living long enough to make it to Gen-2 and then dying, this is definitely a high cost operation. But sometimes you need objects in memory, for example when you cache data you hold on to the objects because you need to use them right across the user session, which is acceptable. But if you wanted to see what extreme caching can do to your server then write a simple application that chucks in a lot of data in cache, run a load test over it for about 10-15 minutes, forcing a lot of data in memory causing the heap to run out of memory. If you get to such a state where you start running out of memory the IIS as a mode of recovery restarts the worker process. It is great way to free up all your memory in the heap but this would clear the cache. The problem with this is if the customer had 10 items in their shopping basket and that data was stored in the application cache, the user basket will now be empty forcing them either to get frustrated and go to a competitor website or if the customer is really patient, give it another try! How can you address this, well two ways of addressing this; 1. Workaround – A x86 bit processor only allows a maximum of 4GB of RAM, this means the machine effectively has around 3.4 GB of RAM available, the OS needs about 1.5 GB of RAM to run efficiently, the IIS and .net framework also need their share of memory, leaving you a heap of around 800 MB to play with. Because Team builds by default build your application in ‘Compile as any mode’ it means the application is build such that it will run in x86 bit mode if run on a x86 bit processor and run in a x64 bit mode if run on a x64 but processor. The problem with this is not all applications are really x64 bit compatible specially if you are using com objects or external libraries. So, as a quick win if you compiled your application in x86 bit mode by changing the compile as any selection to compile as x86 in the team build, you will be able to run your application on a x64 bit machine in x86 bit mode (WOW – By running Windows on Windows) and what that means is, you could use 8GB+ worth of RAM, if you take away everything else your application will roughly get a heap size of at least 4 GB to play with, which is immense. If you need a heap size of more than 4 GB you have either build a software for NASA or there is something fundamentally wrong in your application. 2. Solution – Now that you have put a workaround in place the IIS will not restart the worker process that regularly, which means you can take a breather and start working to get to the root cause of this memory leak. But this begs a question “How do I Identify possible memory leaks in my application?” Well i won’t say that there is one single tool that can tell you where the memory leak is, but trust me, ‘Performance Profiling’ is a great start point, it definitely gets you started in the right direction, let’s have a look at how. Performance Wizard - Start the Performance Wizard and select Instrumentation, this lets you measure function call counts and timings. Before running the performance session right click the performance session settings and chose properties from the context menu to bring up the Performance session properties page and as shown in the screen shot below, check the check boxes in the group ‘.NET memory profiling collection’ namely ‘Collect .NET object allocation information’ and ‘Also collect the .NET Object lifetime information’.    Now if you fire off the profiling session on your pages you will notice that the results allows you to view ‘Object Lifetime’ which shows you the number of objects that made it to Gen-0, Gen-1, Gen-2, Large heap, etc. Another great feature about the profile is that if your application has > 5% cases where objects die right after making to the Gen-2 storage a threshold alert is generated to alert you. Since you have the option to also view the most expensive methods and by capturing the IntelliTrace data you can drill in to narrow down to the line of code that is the root cause of the problem. Well now that we have seen how crucial memory management is and how easy Visual Studio Ultimate 2010 makes it for us to identify and reproduce the problem with the best of breed tools in the product. Caching One of the main ways to improve performance is Caching. Which basically means you tell the web server that instead of going to the database for each request you keep the data in the webserver and when the user asks for it you serve it from the webserver itself. BUT that can have consequences! Let’s look at some code, trust me caching code is not very intuitive, I define a cache key for almost all searches made through the common search page and cache the results. The approach works fine, first time i get the data from the database and second time data is served from the cache, significant performance improvement, EXCEPT when two users try to do the same operation and run into each other. But it is easy to handle this by adding the lock as you can see in the snippet below. So, as long as a user comes in and finds that the cache is empty, the user locks and starts to get the cache no more concurrency issues. But lets say you are processing 10 requests per second, by the time i have locked the operation to get the results from the database, 9 other users came in and found that the cache key is null so after i have come out and populated the cache they will still go in to get the results again. The application will still be faster because the next set of 10 users and so on would continue to get data from the cache. BUT if we added another null check after locking to build the cache and before actual call to the db then the 9 users who follow me would not make the extra trip to the database at all and that would really increase the performance, but didn’t i say that the code won’t be very intuitive, may be you should leave a comment you don’t want another developer to come in and think what a fresher why is he checking for the cache key null twice !!! The downside of caching is, you are storing the data outside of the database and the data could be wrong because the updates applied to the database would make the data cached at the web server out of sync. So, how do you invalidate the cache? Well if you only had one way of updating the data lets say only one entry point to the data update you can write some logic to say that every time new data is entered set the cache object to null. But this approach will not work as soon as you have several ways of feeding data to the system or your system is scaled out across a farm of web servers. The perfect solution to this is Micro Caching which means you cache the query for a set time duration and invalidate the cache after that set duration. The advantage is every time the user queries for that data with in the time span for which you have cached the results there are no calls made to the database and the data is served right from the server which makes the response immensely quick. Now figuring out the appropriate time span for which you micro cache the query results really depends on the application. Lets say your website gets 10 requests per second, if you retain the cache results for even 1 minute you will have immense performance gains. You would reduce 90% hits to the database for searching. Ever wondered why when you go to e-bookers.com or xpedia.com or yatra.com to book a flight and you click on the book button because the fare seems too exciting and you get an error message telling you that the fare is not valid any more. Yes, exactly => That is a cache failure! These travel sites or price compare engines are not going to hit the database every time you hit the compare button instead the results will be served from the cache, because the query results are micro cached, its a perfect trade-off, by micro caching the results the site gains 100% performance benefits but every once in a while annoys a customer because the fare has expired. But the trade off works in the favour of these sites as they are still able to process up to 30+ page requests per second which means cater to the site traffic by may be losing 1 customer every once in a while to a competitor who is also using a similar caching technique what are the odds that the user will not come back to their site sooner or later? Recap   Resources Below are some Key resource you might like to review. I would highly recommend the documentation, walkthroughs and videos available on MSDN. You can always make use of Fiddler to debug Web Performance Tests. Some community test extensions and plug ins available on Codeplex might also be of interest to you. The Road Ahead Thank you for taking the time out and reading this blog post, you may also want to read Part I and Part II if you haven’t so far. If you enjoyed the post, remember to subscribe to http://feeds.feedburner.com/TarunArora. Questions/Feedback/Suggestions, etc please leave a comment. Next ‘Load Testing in the cloud’, I’ll be working on exploring the possibilities of running Test controller/Agents in the Cloud. See you on the other side! Thank You!   Share this post : CodeProject

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• Dual booting on separate hard drives

  - by tornadorider

  I have windows XP professional installed on 1 hard drive and Ubuntu 10.10 on my second hard drive. On start up the computer completely skips the grub menu and boots straight into 10.10. I have tried running os-prober with the windows hard drive mounted and then updating grub but it didnt work. Any ideas? I have changed the boot order so that the HDD with xp on it is first however the computer still booted into linux. I tried running grub-install /dev/sda and got this /usr/sbin/grub-setup: warn: Sector 32 is already in use by FlexNet; avoiding it. This software may cause boot or other problems in future. Please ask its authors not to store data in the boot track.. /usr/sbin/grub-setup: warn: Sector 33 is already in use by FlexNet; avoiding it. This software may cause boot or other problems in future. Please ask its authors not to store data in the boot track.. Installation finished. No error reported I checked using disk utility and the code for my xp hard drive is sdb so i ran the camand grub-install /dev/sdb shich gave me this Installation finished. No error reported. So i rebooted but it still didnt work. Any other ideas? Additional info gedit /boot/grub/grub.cfg: # # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga } insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 load_video insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c set locale_dir=($root)/boot/grub/locale set lang=en insmod gettext if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 fi ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=white/black set menu_color_highlight=black/light-gray ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### menuentry 'Ubuntu, with Linux 2.6.35-28-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux /boot/vmlinuz-2.6.35-28-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro quiet splash initrd /boot/initrd.img-2.6.35-28-generic } menuentry 'Ubuntu, with Linux 2.6.35-28-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c echo 'Loading Linux 2.6.35-28-generic ...' linux /boot/vmlinuz-2.6.35-28-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.35-28-generic } menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro quiet splash initrd /boot/initrd.img-2.6.35-22-generic } menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c echo 'Loading Linux 2.6.35-22-generic ...' linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.35-22-generic } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux16 /boot/memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux16 /boot/memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### if [ "x${timeout}" != "x-1" ]; then if keystatus; then if keystatus --shift; then set timeout=-1 else set timeout=0 fi else if sleep --interruptible 3 ; then set timeout=0 fi fi fi ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ### ### BEGIN /etc/grub.d/41_custom ### if [ -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ### sudo fdisk -l: Disk /dev/sda: 80.1 GB, 80060424192 bytes 255 heads, 63 sectors/track, 9733 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x0008a483 Device Boot Start End Blocks Id System /dev/sda1 * 1 9352 75112448 83 Linux /dev/sda2 9352 9734 3068929 5 Extended /dev/sda5 9352 9734 3068928 82 Linux swap / Solaris Disk /dev/sdb: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xc5d6c5d6 Device Boot Start End Blocks Id System /dev/sdb1 1 60800 488375968+ 7 HPFS/NTFS sudo blkid /dev/sda1: UUID="d682c9bd-dd89-4827-9802-a1f921ebe21c" TYPE="ext4" /dev/sda5: UUID="09e9c2cb-d903-4f0b-a181-536951845231" TYPE="swap" /dev/sdb1: UUID="B21844EB1844AFE1" TYPE="ntfs" sudo os-prober (nothing) Boot Info Script 0.55 dated February 15th, 2010 ============================= Boot Info Summary: ============================== => Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #1 for (,msdos1)/boot/grub. => Grub 2 is installed in the MBR of /dev/sdb and looks on the same drive in partition #1 for (,msdos1)/boot/grub. sda1: _________________________________________________________________________ File system: ext4 Boot sector type: - Boot sector info: Operating System: Ubuntu 10.10 Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img sda2: _________________________________________________________________________ File system: Extended Partition Boot sector type: Unknown Boot sector info: sda5: _________________________________________________________________________ File system: swap Boot sector type: - Boot sector info: sdb1: _________________________________________________________________________ File system: ntfs Boot sector type: Windows XP Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows XP Boot files/dirs: =========================== Drive/Partition Info: ============================= Drive: sda ___________________ _____________________________________________________ Disk /dev/sda: 80.1 GB, 80060424192 bytes 255 heads, 63 sectors/track, 9733 cylinders, total 156368016 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes Partition Boot Start End Size Id System /dev/sda1 * 2,048 150,226,943 150,224,896 83 Linux /dev/sda2 150,228,990 156,366,847 6,137,858 5 Extended /dev/sda5 150,228,992 156,366,847 6,137,856 82 Linux swap / Solaris Drive: sdb ___________________ _____________________________________________________ Disk /dev/sdb: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes Partition Boot Start End Size Id System /dev/sdb1 * 63 976,751,999 976,751,937 7 HPFS/NTFS blkid -c /dev/null: ____________________________________________________________ Device UUID TYPE LABEL /dev/sda1 d682c9bd-dd89-4827-9802-a1f921ebe21c ext4 /dev/sda2: PTTYPE="dos" /dev/sda5 09e9c2cb-d903-4f0b-a181-536951845231 swap /dev/sda: PTTYPE="dos" /dev/sdb1 B21844EB1844AFE1 ntfs /dev/sdb: PTTYPE="dos" ============================ "mount | grep ^/dev output: =========================== Device Mount_Point Type Options /dev/sda1 / ext4 (rw,errors=remount-ro,commit=0) =========================== sda1/boot/grub/grub.cfg: =========================== # # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga } insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 load_video insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c set locale_dir=($root)/boot/grub/locale set lang=en insmod gettext if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 fi ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=white/black set menu_color_highlight=black/light-gray ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### menuentry 'Ubuntu, with Linux 2.6.35-28-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux /boot/vmlinuz-2.6.35-28-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro quiet splash initrd /boot/initrd.img-2.6.35-28-generic } menuentry 'Ubuntu, with Linux 2.6.35-28-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c echo 'Loading Linux 2.6.35-28-generic ...' linux /boot/vmlinuz-2.6.35-28-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.35-28-generic } menuentry 'Ubuntu, with Linux 2.6.35-22-generic' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro quiet splash initrd /boot/initrd.img-2.6.35-22-generic } menuentry 'Ubuntu, with Linux 2.6.35-22-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c echo 'Loading Linux 2.6.35-22-generic ...' linux /boot/vmlinuz-2.6.35-22-generic root=UUID=d682c9bd-dd89-4827-9802-a1f921ebe21c ro single echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-2.6.35-22-generic } ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### menuentry "Memory test (memtest86+)" { insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux16 /boot/memtest86+.bin } menuentry "Memory test (memtest86+, serial console 115200)" { insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set d682c9bd-dd89-4827-9802-a1f921ebe21c linux16 /boot/memtest86+.bin console=ttyS0,115200n8 } ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### if [ "x${timeout}" != "x-1" ]; then if keystatus; then if keystatus --shift; then set timeout=-1 else set timeout=0 fi else if sleep --interruptible 3 ; then set timeout=0 fi fi fi ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. menuentry "Windows XP" { set root=(hd1,1) chainloader (hd1,1)+1 } ### END /etc/grub.d/40_custom ### ### BEGIN /etc/grub.d/41_custom ### if [ -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ### =============================== sda1/etc/fstab: =============================== # /etc/fstab: static file system information. # # Use 'blkid -o value -s UUID' to print the universally unique identifier # for a device; this may be used with UUID= as a more robust way to name # devices that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 /dev/sda1 / ext4 errors=remount-ro 0 1 # swap was on /dev/sda5 during installation UUID=09e9c2cb-d903-4f0b-a181-536951845231 none swap sw 0 0 =================== sda1: Location of files loaded by Grub: =================== 51.7GB: boot/grub/core.img 58.5GB: boot/grub/grub.cfg 1.2GB: boot/initrd.img-2.6.35-22-generic 1.3GB: boot/initrd.img-2.6.35-28-generic 58.2GB: boot/vmlinuz-2.6.35-22-generic 51.7GB: boot/vmlinuz-2.6.35-28-generic 1.3GB: initrd.img 1.2GB: initrd.img.old 51.7GB: vmlinuz 58.2GB: vmlinuz.old =========================== Unknown MBRs/Boot Sectors/etc ======================= Unknown BootLoader on sda2 00000000 d9 ed 13 ab ff a8 33 8c 01 b2 47 99 e1 4a b1 f1 |......3...G..J..| 00000010 69 5f a7 29 a4 1a 03 9e 31 b9 45 02 71 e6 58 78 |i_.)....1.E.q.Xx| 00000020 3d f6 ee 7b 3e 33 1b 82 c6 7d cf 1a c8 e7 bc 2f |=..{>3...}...../| 00000030 b9 e1 70 75 cf 18 aa e7 d5 7e 3c f1 b4 e7 9e 3a |..pu.....~<....:| 00000040 55 38 f1 b4 ee 78 59 0b 5e f7 3c 4c 57 73 9c 2a |U8...xY.^.<LWs.*| 00000050 28 f1 19 ed 11 9c b2 19 e2 80 92 1c 7b 84 ee 0b |(...........{...| 00000060 e2 c0 ac af 0a 50 42 b9 cf 0c dc 2c 20 77 85 dc |.....PB...., w..| 00000070 8f 70 5f 7b 84 9b a1 f7 8c 2d ee 70 5c ae f7 39 |.p_{.....-.p\..9| 00000080 63 f7 09 8a ec 79 4c ed 9f cc ad 3c f8 1b 47 7d |c....yL....<..G}| 00000090 3f 97 d5 16 cb 29 45 38 25 61 36 08 de 10 93 0f |?....)E8%a6.....| 000000a0 95 4f ea 54 f9 89 ff f1 bf 9a cc bb fd b6 22 b1 |.O.T..........".| 000000b0 65 08 05 21 78 19 46 b0 24 7e fb de d4 b3 ba d6 |e..!x.F.$~......| 000000c0 ec 11 65 82 ee 10 1d 12 04 91 da 6d 67 47 ea 9b |..e........mgG..| 000000d0 6f b0 aa fb cb 67 10 64 86 e8 26 85 fb f9 50 77 |o....g.d..&...Pw| 000000e0 9d 13 9b 9e d9 11 f3 a1 50 1b 11 b7 93 79 9f ab |........P....y..| 000000f0 c1 b6 86 0f 35 ed d4 9f dc f8 db bd ed 45 3a 68 |....5........E:h| 00000100 54 68 4a 1d d1 fc b8 c9 72 b4 d7 7b 60 e7 39 2f |ThJ.....r..{`.9/| 00000110 2a 0a 4e 52 72 52 c6 e2 2a 55 6a 2a e1 82 40 71 |*.NRrR..*Uj*..@q| 00000120 11 11 e0 53 d6 ff 1b a9 c6 65 df 1e b7 15 6f a2 |...S.....e....o.| 00000130 15 02 a4 6d 19 b7 78 57 a6 ee 9e 36 08 7d 6f 7c |...m..xW...6.}o|| 00000140 fd f7 7c d5 40 ff 0f c7 97 dc aa 00 ce 8b bb dc |..|.@...........| 00000150 e2 eb 1c 50 74 d8 14 cc 9a d6 5c a2 ab f2 67 f9 |...Pt.....\...g.| 00000160 58 ed 43 79 0e 78 7a 5c a6 f8 7b e8 05 4e 62 8a |X.Cy.xz\..{..Nb.| 00000170 0a 5f 22 ee a6 38 b9 e1 32 45 97 08 cc 75 66 c6 |._"..8..2E...uf.| 00000180 b3 a2 2d 89 a1 e9 95 21 28 53 fd dd be b1 b2 a2 |..-....!(S......| 00000190 78 3f a3 c9 3d e3 31 54 88 cf 78 0d e1 21 a8 74 |x?..=.1T..x..!.t| 000001a0 06 60 9d 21 c6 7a 24 e1 cc 28 f8 98 e0 99 e3 fc |.`.!.z$..(......| 000001b0 fa 8b eb d5 56 03 20 b8 54 ba c6 ee 9f 57 00 fe |....V. .T....W..| 000001c0 ff ff 82 fe ff ff 02 00 00 00 00 a8 5d 00 00 00 |............]...| 000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................| * 000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa |..............U.| 00000200

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• Calculating the Size (in Bytes and MB) of a Oracle Coherence Cache

  - by Ricardo Ferreira

  The concept and usage of data grids are becoming very popular in this days since this type of technology are evolving very fast with some cool lead products like Oracle Coherence. Once for a while, developers need an programmatic way to calculate the total size of a specific cache that are residing in the data grid. In this post, I will show how to accomplish this using Oracle Coherence API. This example has been tested with 3.6, 3.7 and 3.7.1 versions of Oracle Coherence. To start the development of this example, you need to create a POJO ("Plain Old Java Object") that represents a data structure that will hold user data. This data structure will also create an internal fat so I call that should increase considerably the size of each instance in the heap memory. Create a Java class named "Person" as shown in the listing below. package com.oracle.coherence.domain; import java.io.Serializable; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Random; @SuppressWarnings("serial") public class Person implements Serializable { private String firstName; private String lastName; private List<Object> fat; private String email; public Person() { generateFat(); } public Person(String firstName, String lastName, String email) { setFirstName(firstName); setLastName(lastName); setEmail(email); generateFat(); } private void generateFat() { fat = new ArrayList<Object>(); Random random = new Random(); for (int i = 0; i < random.nextInt(18000); i++) { HashMap<Long, Double> internalFat = new HashMap<Long, Double>(); for (int j = 0; j < random.nextInt(10000); j++) { internalFat.put(random.nextLong(), random.nextDouble()); } fat.add(internalFat); } } public String getFirstName() { return firstName; } public void setFirstName(String firstName) { this.firstName = firstName; } public String getLastName() { return lastName; } public void setLastName(String lastName) { this.lastName = lastName; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } } Now let's create a Java program that will start a data grid into Coherence and will create a cache named "People", that will hold people instances with sequential integer keys. Each person created in this program will trigger the execution of a custom constructor created in the People class that instantiates an internal fat (the random amount of data generated to increase the size of the object) for each person. Create a Java class named "CreatePeopleCacheAndPopulateWithData" as shown in the listing below. package com.oracle.coherence.demo; import com.oracle.coherence.domain.Person; import com.tangosol.net.CacheFactory; import com.tangosol.net.NamedCache; public class CreatePeopleCacheAndPopulateWithData { public static void main(String[] args) { // Asks Coherence for a new cache named "People"... NamedCache people = CacheFactory.getCache("People"); // Creates three people that will be putted into the data grid. Each person // generates an internal fat that should increase its size in terms of bytes... Person pessoa1 = new Person("Ricardo", "Ferreira", "[email protected]"); Person pessoa2 = new Person("Vitor", "Ferreira", "[email protected]"); Person pessoa3 = new Person("Vivian", "Ferreira", "[email protected]"); // Insert three people at the data grid... people.put(1, pessoa1); people.put(2, pessoa2); people.put(3, pessoa3); // Waits for 5 minutes until the user runs the Java program // that calculates the total size of the people cache... try { System.out.println("---> Waiting for 5 minutes for the cache size calculation..."); Thread.sleep(300000); } catch (InterruptedException ie) { ie.printStackTrace(); } } } Finally, let's create a Java program that, using the Coherence API and JMX, will calculate the total size of each cache that the data grid is currently managing. The approach used in this example was retrieve every cache that the data grid are currently managing, but if you are interested on an specific cache, the same approach can be used, you should only filter witch cache will be looked for. Create a Java class named "CalculateTheSizeOfPeopleCache" as shown in the listing below. package com.oracle.coherence.demo; import java.text.DecimalFormat; import java.util.Map; import java.util.Set; import java.util.TreeMap; import javax.management.MBeanServer; import javax.management.MBeanServerFactory; import javax.management.ObjectName; import com.tangosol.net.CacheFactory; public class CalculateTheSizeOfPeopleCache { @SuppressWarnings({ "unchecked", "rawtypes" }) private void run() throws Exception { // Enable JMX support in this Coherence data grid session... System.setProperty("tangosol.coherence.management", "all"); // Create a sample cache just to access the data grid... CacheFactory.getCache(MBeanServerFactory.class.getName()); // Gets the JMX server from Coherence data grid... MBeanServer jmxServer = getJMXServer(); // Creates a internal data structure that would maintain // the statistics from each cache in the data grid... Map cacheList = new TreeMap(); Set jmxObjectList = jmxServer.queryNames(new ObjectName("Coherence:type=Cache,*"), null); for (Object jmxObject : jmxObjectList) { ObjectName jmxObjectName = (ObjectName) jmxObject; String cacheName = jmxObjectName.getKeyProperty("name"); if (cacheName.equals(MBeanServerFactory.class.getName())) { continue; } else { cacheList.put(cacheName, new Statistics(cacheName)); } } // Updates the internal data structure with statistic data // retrieved from caches inside the in-memory data grid... Set<String> cacheNames = cacheList.keySet(); for (String cacheName : cacheNames) { Set resultSet = jmxServer.queryNames( new ObjectName("Coherence:type=Cache,name=" + cacheName + ",*"), null); for (Object resultSetRef : resultSet) { ObjectName objectName = (ObjectName) resultSetRef; if (objectName.getKeyProperty("tier").equals("back")) { int unit = (Integer) jmxServer.getAttribute(objectName, "Units"); int size = (Integer) jmxServer.getAttribute(objectName, "Size"); Statistics statistics = (Statistics) cacheList.get(cacheName); statistics.incrementUnit(unit); statistics.incrementSize(size); cacheList.put(cacheName, statistics); } } } // Finally... print the objects from the internal data // structure that represents the statistics from caches... cacheNames = cacheList.keySet(); for (String cacheName : cacheNames) { Statistics estatisticas = (Statistics) cacheList.get(cacheName); System.out.println(estatisticas); } } public MBeanServer getJMXServer() { MBeanServer jmxServer = null; for (Object jmxServerRef : MBeanServerFactory.findMBeanServer(null)) { jmxServer = (MBeanServer) jmxServerRef; if (jmxServer.getDefaultDomain().equals(DEFAULT_DOMAIN) || DEFAULT_DOMAIN.length() == 0) { break; } jmxServer = null; } if (jmxServer == null) { jmxServer = MBeanServerFactory.createMBeanServer(DEFAULT_DOMAIN); } return jmxServer; } private class Statistics { private long unit; private long size; private String cacheName; public Statistics(String cacheName) { this.cacheName = cacheName; } public void incrementUnit(long unit) { this.unit += unit; } public void incrementSize(long size) { this.size += size; } public long getUnit() { return unit; } public long getSize() { return size; } public double getUnitInMB() { return unit / (1024.0 * 1024.0); } public double getAverageSize() { return size == 0 ? 0 : unit / size; } public String toString() { StringBuffer sb = new StringBuffer(); sb.append("\nCache Statistics of '").append(cacheName).append("':\n"); sb.append(" - Total Entries of Cache -----> " + getSize()).append("\n"); sb.append(" - Used Memory (Bytes) --------> " + getUnit()).append("\n"); sb.append(" - Used Memory (MB) -----------> " + FORMAT.format(getUnitInMB())).append("\n"); sb.append(" - Object Average Size --------> " + FORMAT.format(getAverageSize())).append("\n"); return sb.toString(); } } public static void main(String[] args) throws Exception { new CalculateTheSizeOfPeopleCache().run(); } public static final DecimalFormat FORMAT = new DecimalFormat("###.###"); public static final String DEFAULT_DOMAIN = ""; public static final String DOMAIN_NAME = "Coherence"; } I've commented the overall example so, I don't think that you should get into trouble to understand it. Basically we are dealing with JMX. The first thing to do is enable JMX support for the Coherence client (ie, an JVM that will only retrieve values from the data grid and will not integrate the cluster) application. This can be done very easily using the runtime "tangosol.coherence.management" system property. Consult the Coherence documentation for JMX to understand the possible values that could be applied. The program creates an in memory data structure that holds a custom class created called "Statistics". This class represents the information that we are interested to see, which in this case are the size in bytes and in MB of the caches. An instance of this class is created for each cache that are currently managed by the data grid. Using JMX specific methods, we retrieve the information that are relevant for calculate the total size of the caches. To test this example, you should execute first the CreatePeopleCacheAndPopulateWithData.java program and after the CreatePeopleCacheAndPopulateWithData.java program. The results in the console should be something like this: 2012-06-23 13:29:31.188/4.970 Oracle Coherence 3.6.0.4 <Info> (thread=Main Thread, member=n/a): Loaded operational configuration from "jar:file:/E:/Oracle/Middleware/oepe_11gR1PS4/workspace/calcular-tamanho-cache-coherence/lib/coherence.jar!/tangosol-coherence.xml" 2012-06-23 13:29:31.219/5.001 Oracle Coherence 3.6.0.4 <Info> (thread=Main Thread, member=n/a): Loaded operational overrides from "jar:file:/E:/Oracle/Middleware/oepe_11gR1PS4/workspace/calcular-tamanho-cache-coherence/lib/coherence.jar!/tangosol-coherence-override-dev.xml" 2012-06-23 13:29:31.219/5.001 Oracle Coherence 3.6.0.4 <D5> (thread=Main Thread, member=n/a): Optional configuration override "/tangosol-coherence-override.xml" is not specified 2012-06-23 13:29:31.266/5.048 Oracle Coherence 3.6.0.4 <D5> (thread=Main Thread, member=n/a): Optional configuration override "/custom-mbeans.xml" is not specified Oracle Coherence Version 3.6.0.4 Build 19111 Grid Edition: Development mode Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. 2012-06-23 13:29:33.156/6.938 Oracle Coherence GE 3.6.0.4 <Info> (thread=Main Thread, member=n/a): Loaded Reporter configuration from "jar:file:/E:/Oracle/Middleware/oepe_11gR1PS4/workspace/calcular-tamanho-cache-coherence/lib/coherence.jar!/reports/report-group.xml" 2012-06-23 13:29:33.500/7.282 Oracle Coherence GE 3.6.0.4 <Info> (thread=Main Thread, member=n/a): Loaded cache configuration from "jar:file:/E:/Oracle/Middleware/oepe_11gR1PS4/workspace/calcular-tamanho-cache-coherence/lib/coherence.jar!/coherence-cache-config.xml" 2012-06-23 13:29:35.391/9.173 Oracle Coherence GE 3.6.0.4 <D4> (thread=Main Thread, member=n/a): TCMP bound to /192.168.177.133:8090 using SystemSocketProvider 2012-06-23 13:29:37.062/10.844 Oracle Coherence GE 3.6.0.4 <Info> (thread=Cluster, member=n/a): This Member(Id=2, Timestamp=2012-06-23 13:29:36.899, Address=192.168.177.133:8090, MachineId=55685, Location=process:244, Role=Oracle, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2) joined cluster "cluster:0xC4DB" with senior Member(Id=1, Timestamp=2012-06-23 13:29:14.031, Address=192.168.177.133:8088, MachineId=55685, Location=process:1128, Role=CreatePeopleCacheAndPopulateWith, Edition=Grid Edition, Mode=Development, CpuCount=2, SocketCount=2) 2012-06-23 13:29:37.172/10.954 Oracle Coherence GE 3.6.0.4 <D5> (thread=Cluster, member=n/a): Member 1 joined Service Cluster with senior member 1 2012-06-23 13:29:37.188/10.970 Oracle Coherence GE 3.6.0.4 <D5> (thread=Cluster, member=n/a): Member 1 joined Service Management with senior member 1 2012-06-23 13:29:37.188/10.970 Oracle Coherence GE 3.6.0.4 <D5> (thread=Cluster, member=n/a): Member 1 joined Service DistributedCache with senior member 1 2012-06-23 13:29:37.188/10.970 Oracle Coherence GE 3.6.0.4 <Info> (thread=Main Thread, member=n/a): Started cluster Name=cluster:0xC4DB Group{Address=224.3.6.0, Port=36000, TTL=4} MasterMemberSet ( ThisMember=Member(Id=2, Timestamp=2012-06-23 13:29:36.899, Address=192.168.177.133:8090, MachineId=55685, Location=process:244, Role=Oracle) OldestMember=Member(Id=1, Timestamp=2012-06-23 13:29:14.031, Address=192.168.177.133:8088, MachineId=55685, Location=process:1128, Role=CreatePeopleCacheAndPopulateWith) ActualMemberSet=MemberSet(Size=2, BitSetCount=2 Member(Id=1, Timestamp=2012-06-23 13:29:14.031, Address=192.168.177.133:8088, MachineId=55685, Location=process:1128, Role=CreatePeopleCacheAndPopulateWith) Member(Id=2, Timestamp=2012-06-23 13:29:36.899, Address=192.168.177.133:8090, MachineId=55685, Location=process:244, Role=Oracle) ) RecycleMillis=1200000 RecycleSet=MemberSet(Size=0, BitSetCount=0 ) ) TcpRing{Connections=[1]} IpMonitor{AddressListSize=0} 2012-06-23 13:29:37.891/11.673 Oracle Coherence GE 3.6.0.4 <D5> (thread=Invocation:Management, member=2): Service Management joined the cluster with senior service member 1 2012-06-23 13:29:39.203/12.985 Oracle Coherence GE 3.6.0.4 <D5> (thread=DistributedCache, member=2): Service DistributedCache joined the cluster with senior service member 1 2012-06-23 13:29:39.297/13.079 Oracle Coherence GE 3.6.0.4 <D4> (thread=DistributedCache, member=2): Asking member 1 for 128 primary partitions Cache Statistics of 'People': - Total Entries of Cache -----> 3 - Used Memory (Bytes) --------> 883920 - Used Memory (MB) -----------> 0.843 - Object Average Size --------> 294640 I hope that this post could save you some time when calculate the total size of Coherence cache became a requirement for your high scalable system using data grids. See you!

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• Detecting HTML5/CSS3 Features using Modernizr

  - by dwahlin

  HTML5, CSS3, and related technologies such as canvas and web sockets bring a lot of useful new features to the table that can take Web applications to the next level. These new technologies allow applications to be built using only HTML, CSS, and JavaScript allowing them to be viewed on a variety of form factors including tablets and phones. Although HTML5 features offer a lot of promise, it’s not realistic to develop applications using the latest technologies without worrying about supporting older browsers in the process. If history has taught us anything it’s that old browsers stick around for years and years which means developers have to deal with backward compatibility issues. This is especially true when deploying applications to the Internet that target the general public. This begs the question, “How do you move forward with HTML5 and CSS3 technologies while gracefully handling unsupported features in older browsers?” Although you can write code by hand to detect different HTML5 and CSS3 features, it’s not always straightforward. For example, to check for canvas support you need to write code similar to the following:   <script> window.onload = function () { if (canvasSupported()) { alert('canvas supported'); } }; function canvasSupported() { var canvas = document.createElement('canvas'); return (canvas.getContext && canvas.getContext('2d')); } </script> If you want to check for local storage support the following check can be made. It’s more involved than it should be due to a bug in older versions of Firefox. <script> window.onload = function () { if (localStorageSupported()) { alert('local storage supported'); } }; function localStorageSupported() { try { return ('localStorage' in window && window['localStorage'] != null); } catch(e) {} return false; } </script> Looking through the previous examples you can see that there’s more than meets the eye when it comes to checking browsers for HTML5 and CSS3 features. It takes a lot of work to test every possible scenario and every version of a given browser. Fortunately, you don’t have to resort to writing custom code to test what HTML5/CSS3 features a given browser supports. By using a script library called Modernizr you can add checks for different HTML5/CSS3 features into your pages with a minimal amount of code on your part. Let’s take a look at some of the key features Modernizr offers.   Getting Started with Modernizr The first time I heard the name “Modernizr” I thought it “modernized” older browsers by added missing functionality. In reality, Modernizr doesn’t actually handle adding missing features or “modernizing” older browsers. The Modernizr website states, “The name Modernizr actually stems from the goal of modernizing our development practices (and ourselves)”. Because it relies on feature detection rather than browser sniffing (a common technique used in the past – that never worked that great), Modernizr definitely provides a more modern way to test features that a browser supports and can even handle loading additional scripts called shims or polyfills that fill in holes that older browsers may have. It’s a great tool to have in your arsenal if you’re a web developer. Modernizr is available at http://modernizr.com. Two different types of scripts are available including a development script and custom production script. To generate a production script, the site provides a custom script generation tool rather than providing a single script that has everything under the sun for HTML5/CSS3 feature detection. Using the script generation tool you can pick the specific test functionality that you need and ignore everything that you don’t need. That way the script is kept as small as possible. An example of the custom script download screen is shown next. Notice that specific CSS3, HTML5, and related feature tests can be selected. Once you’ve downloaded your custom script you can add it into your web page using the standard <script> element and you’re ready to start using Modernizr. <script src="Scripts/Modernizr.js" type="text/javascript"></script>   Modernizr and the HTML Element Once you’ve add a script reference to Modernizr in a page it’ll go to work for you immediately. In fact, by adding the script several different CSS classes will be added to the page’s <html> element at runtime. These classes define what features the browser supports and what features it doesn’t support. Features that aren’t supported get a class name of “no-FeatureName”, for example “no-flexbox”. Features that are supported get a CSS class name based on the feature such as “canvas” or “websockets”. An example of classes added when running a page in Chrome is shown next:   <html class=" js flexbox canvas canvastext webgl no-touch geolocation postmessage websqldatabase indexeddb hashchange history draganddrop websockets rgba hsla multiplebgs backgroundsize borderimage borderradius boxshadow textshadow opacity cssanimations csscolumns cssgradients cssreflections csstransforms csstransforms3d csstransitions fontface generatedcontent video audio localstorage sessionstorage webworkers applicationcache svg inlinesvg smil svgclippaths"> Here’s an example of what the <html> element looks like at runtime with Internet Explorer 9:   <html class=" js no-flexbox canvas canvastext no-webgl no-touch geolocation postmessage no-websqldatabase no-indexeddb hashchange no-history draganddrop no-websockets rgba hsla multiplebgs backgroundsize no-borderimage borderradius boxshadow no-textshadow opacity no-cssanimations no-csscolumns no-cssgradients no-cssreflections csstransforms no-csstransforms3d no-csstransitions fontface generatedcontent video audio localstorage sessionstorage no-webworkers no-applicationcache svg inlinesvg smil svgclippaths">   When using Modernizr it’s a common practice to define an <html> element in your page with a no-js class added as shown next:   <html class="no-js">   You’ll see starter projects such as HTML5 Boilerplate (http://html5boilerplate.com) or Initializr (http://initializr.com) follow this approach (see my previous post for more information on HTML5 Boilerplate). By adding the no-js class it’s easy to tell if a browser has JavaScript enabled or not. If JavaScript is disabled then no-js will stay on the <html> element. If JavaScript is enabled, no-js will be removed by Modernizr and a js class will be added along with other classes that define supported/unsupported features. Working with HTML5 and CSS3 Features You can use the CSS classes added to the <html> element directly in your CSS files to determine what style properties to use based upon the features supported by a given browser. For example, the following CSS can be used to render a box shadow for browsers that support that feature and a simple border for browsers that don’t support the feature: .boxshadow #MyContainer { border: none; -webkit-box-shadow: #666 1px 1px 1px; -moz-box-shadow: #666 1px 1px 1px; } .no-boxshadow #MyContainer { border: 2px solid black; }   If a browser supports box-shadows the boxshadow CSS class will be added to the <html> element by Modernizr. It can then be associated with a given element. This example associates the boxshadow class with a div with an id of MyContainer. If the browser doesn’t support box shadows then the no-boxshadow class will be added to the <html> element and it can be used to render a standard border around the div. This provides a great way to leverage new CSS3 features in supported browsers while providing a graceful fallback for older browsers. In addition to using the CSS classes that Modernizr provides on the <html> element, you also use a global Modernizr object that’s created. This object exposes different properties that can be used to detect the availability of specific HTML5 or CSS3 features. For example, the following code can be used to detect canvas and local storage support. You can see that the code is much simpler than the code shown at the beginning of this post. It also has the added benefit of being tested by a large community of web developers around the world running a variety of browsers.   $(document).ready(function () { if (Modernizr.canvas) { //Add canvas code } if (Modernizr.localstorage) { //Add local storage code } }); The global Modernizr object can also be used to test for the presence of CSS3 features. The following code shows how to test support for border-radius and CSS transforms:   $(document).ready(function () { if (Modernizr.borderradius) { $('#MyDiv').addClass('borderRadiusStyle'); } if (Modernizr.csstransforms) { $('#MyDiv').addClass('transformsStyle'); } });   Several other CSS3 feature tests can be performed such as support for opacity, rgba, text-shadow, CSS animations, CSS transitions, multiple backgrounds, and more. A complete list of supported HTML5 and CSS3 tests that Modernizr supports can be found at http://www.modernizr.com/docs.   Loading Scripts using Modernizr In cases where a browser doesn’t support a specific feature you can either provide a graceful fallback or load a shim/polyfill script to fill in missing functionality where appropriate (more information about shims/polyfills can be found at https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-Browser-Polyfills). Modernizr has a built-in script loader that can be used to test for a feature and then load a script if the feature isn’t available. The script loader is built-into Modernizr and is also available as a standalone yepnope script (http://yepnopejs.com). It’s extremely easy to get started using the script loader and it can really simplify the process of loading scripts based on the availability of a particular browser feature. To load scripts dynamically you can use Modernizr’s load() function which accepts properties defining the feature to test (test property), the script to load if the test succeeds (yep property), the script to load if the test fails (nope property), and a script to load regardless of if the test succeeds or fails (both property). An example of using load() with these properties is show next: Modernizr.load({ test: Modernizr.canvas, yep: 'html5CanvasAvailable.js’, nope: 'excanvas.js’, both: 'myCustomScript.js' }); In this example Modernizr is used to not only load scripts but also to test for the presence of the canvas feature. If the target browser supports the HTML5 canvas then the html5CanvasAvailable.js script will be loaded along with the myCustomScript.js script (use of the yep property in this example is a bit contrived – it was added simply to demonstrate how the property can be used in the load() function). Otherwise, a polyfill script named excanvas.js will be loaded to add missing canvas functionality for Internet Explorer versions prior to 9. Once excanvas.js is loaded the myCustomScript.js script will be loaded. Because Modernizr handles loading scripts, you can also use it in creative ways. For example, you can use it to load local scripts when a 3rd party Content Delivery Network (CDN) such as one provided by Google or Microsoft is unavailable for whatever reason. The Modernizr documentation provides the following example that demonstrates the process for providing a local fallback for jQuery when a CDN is down:   Modernizr.load([ { load: '//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.js', complete: function () { if (!window.jQuery) { Modernizr.load('js/libs/jquery-1.6.4.min.js'); } } }, { // This will wait for the fallback to load and // execute if it needs to. load: 'needs-jQuery.js' } ]); This code attempts to load jQuery from the Google CDN first. Once the script is downloaded (or if it fails) the function associated with complete will be called. The function checks to make sure that the jQuery object is available and if it’s not Modernizr is used to load a local jQuery script. After all of that occurs a script named needs-jQuery.js will be loaded. Conclusion If you’re building applications that use some of the latest and greatest features available in HTML5 and CSS3 then Modernizr is an essential tool. By using it you can reduce the amount of custom code required to test for browser features and provide graceful fallbacks or even load shim/polyfill scripts for older browsers to help fill in missing functionality. 

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• CodePlex Daily Summary for Thursday, November 10, 2011

  CodePlex Daily Summary for Thursday, November 10, 2011Popular ReleasesCODE Framework: 4.0.11110.0: Various minor fixes and tweaks.Extensions for Reactive Extensions (Rxx): Rxx 1.2: What's NewRelated Work Items Please read the latest release notes for details about what's new. Content SummaryRxx provides the following features. See the Documentation for details. Many IObservable<T> extension methods and IEnumerable<T> extension methods. Many useful types such as ViewModel, CommandSubject, ListSubject, DictionarySubject, ObservableDynamicObject, Either<TLeft, TRight>, Maybe<T> and others. Various interactive labs that illustrate the runtime behavior of the extensio...Composite C1 CMS: Composite C1 3.0 RC2 (3.0.4331.234): This is currently a Release Candidate. Upgrade guidelines and "what's new" are pending.Player Framework by Microsoft: HTML5 Player Framework 1.0: Additional DownloadsHTML5 Player Framework Examples - This is a set of examples showing how to setup and initialize the HTML5 Player Framework. This includes examples of how to use the Player Framework with both the HTML5 video tag and Silverlight player. Note: Be sure to unblock the zip file before using. Note: In order to test Silverlight fallback in the included sample app, you need to run the html and xap files over http (e.g. over localhost). Silverlight Players - Visit the Silverlig...MapWindow 4: MapWindow GIS v4.8.6 - Final release - 64Bit: What’s New in 4.8.6 (Final release)A few minor issues have been fixed What’s New in 4.8.5 (Beta release)Assign projection tool. (Sergei Leschinsky) Projection dialects. (Sergei Leschinsky) Projections database converted to SQLite format. (Sergei Leschinsky) Basic code for database support - will be developed further (ShapefileDataClient class, IDataProvider interface). (Sergei Leschinsky) 'Export shapefile to database' tool. (Sergei Leschinsky) Made the GEOS library static. geos.dl...NewLife XCode ??????: XCode v8.2.2011.1107、XCoder v4.5.2011.1108: v8.2.2011.1107 ?IEntityOperate.Create?Entity.CreateInstance??????forEdit，????????(FindByKeyForEdit)???，???false ??????Entity.CreateInstance，????forEdit，???????????????????? v8.2.2011.1103 ??MS????，??MaxMin??（????????）、NotIn??（????）、?Top??（??NotIn）、RowNumber??（?????） v8.2.2011.1101 SqlServer?????????DataPath，?????????????????????? Oracle?????????DllPath，????OCI??，???????????ORACLE_HOME?? Oracle?????XCode.Oracle.IsUseOwner，???????????Ow...Facebook C# SDK: v5.3.2: This is a RTW release which adds new features and bug fixes to v5.2.1. Query/QueryAsync methods uses graph api instead of legacy rest api. removed dependency from Code Contracts enabled Task Parallel Support in .NET 4.0+ (experimental) added support for early preview for .NET 4.5 (binaries not distributed in codeplex nor nuget.org, will need to manually build from Facebook-Net45.sln) added additional method overloads for .NET 4.5 to support IProgress<T> for upload progress added ne...Delete Inactive TS Ports: List and delete the Inactive TS Ports: UPDATEAdded support for windows 2003 servers and removed some null reference errors when the registry key was not present List and delete the Inactive TS Ports - The InactiveTSPortList.EXE accepts command line arguments The InactiveTSPortList.Standalone.WithoutPrompt.exe runs as a standalone exe without the need for any command line arguments.Ribbon Editor for Microsoft Dynamics CRM 2011: Ribbon Editor (0.1.2207.267): BUG FIXES: - Cannot add multiple JavaScript and Url under Actions - Cannot add <Or> node under <OrGroup> - Adding a rule under <Or> node put the new rule node at the wrong placeDNN Quick Form: DNN Quick Form 1.0.0: Initial Release for DNN Quick Form Requires DotNetNuke 6.1ClosedXML - The easy way to OpenXML: ClosedXML 0.60.0: Added almost full support for auto filters (missing custom date filters). See examples Filter Values, Custom Filters Fixed issues 7016, 7391, 7388, 7389, 7198, 7196, 7194, 7186, 7067, 7115, 7144Microsoft Research Boogie: Nightly builds: This download category contains automatically released nightly builds, reflecting the current state of Boogie's development. We try to make sure each nightly build passes the test suite. If you suspect that was not the case, please try the previous nightly build to see if that really is the problem. Also, please see the installation instructions.GoogleMap Control: GoogleMap Control 6.0: Major design changes to the control in order to achieve better scalability and extensibility for the new features comming with GoogleMaps API. GoogleMap control switched to GoogleMaps API v3 and .NET 4.0. GoogleMap control is 100% ScriptControl now, it requires ScriptManager to be registered on the pages where and before it is used. Markers, polylines, polygons and directions were implemented as ExtenderControl, instead of being inner properties of GoogleMap control. Better perfomance. Better...SubExtractor: Release 1020: Feature: added "baseline double quotes" character to selector box Feature: added option to save SRT files as ANSI (instead of previous UTF-8 only) Feature: made "Save Sup files to Source directory" apply to both Sup and Idx source files. Fix: removed SDH text (...) or [...] that is split over 2 lines Fix: better decision-making in when to prefix a line with a '-' because SDH was removedAcDown????? - Anime&Comic Downloader: AcDown????? v3.6.1: ?? ● AcDown??????????、??????，??????????????????????，???????Acfun、Bilibili、???、???、???、Tucao.cc、SF???、?????80????，???????????、?????????。 ● AcDown???????????????????????????，???，???????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)?.NET Framework 2.0???(x64)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ?? v3.6.1?? ??.hlv...Track Folder Changes: Track Folder Changes 1.1: Fixed exception when right-clicking the root nodeKinect Toolbox: Kinect Toolbox v1.1.0.2: This version adds support for the Kinect for Windows SDK beta 2.Kinect Mouse Cursor: Kinect Mouse Cursor 1.1: Updated for Kinect for Windows SDK v1.0 Beta 2!Coding4Fun Kinect Toolkit: Coding4Fun Kinect Toolkit 1.1: Updated for Kinect for Windows SDK v1.0 Beta 2!Media Companion: MC 3.421b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) TV Show Resolutions... Fix to show the season-specials.tbn when selecting an episode from season 00. Before, MC would try & load season00.tbn Fix for issue #197 - new show added by 'Manually Add Path' not being picked up. Also made non-visible the same thing in Root Folders...New ProjectsAlgoritmoGeneticoVB: Proyecto para la cátedra de Inteligencia Artificial de la UCSEAudio Pitch & Shift: Audio Pitch & Shift is a simple audio tool intended to be useful for musicians who wants to slow down or change the pitch of the music. This software takes advantage of Bass audio library technology, wich is multi platform and x64 compatible.Betz: Start with financial binary bet system first... But hope to have a gaming platform in the end. Cheers!Composite Data Service Framework: The Composite Data Service Framework is a toolkit that extends the functionality of the WCF Data Services APIs by allowing a set of OData Services from distinct data sources to be aggregated into a single Data Service, with client-side APIs to help with common tasks.Crayons Static Version: GIS vector-based spatial data overlay processing is much more complex than raster data processing. The GIS data files can be huge and their overlay processing is computationally intensive. CrmXpress SmartSoapLogger for Microsoft Dynamics CRM 2011: SmartSoapLogger autoamtes the process of generating SOAP messages as well as JavaScript functions to use them. All you do is write C# code and click on a button[You have few options as well]to get SOAP messages as well as the Script. Custom File Generators: This project includes Visual Studio Custom Tools that aid in development of Silverlight, Windows Phone, and WPF applications or any MVVM project for that matter. The custom tool creates properties from backing fields that have a specific attribute. The properties are then used in binding and raise their changed event.eDay - Verbräuche: Dieses Programm ermöglicht die Erfassung der monatlichen Verbräuche von Strom, Gas und Wasser. Sie stellt die Werte tabellarisch dar und zeigt sie zusätzlich in einer Statistik.Godfather: An application for administration of sponsorship agencies developed by the .NET Open Space User Group of Vienna Austria in the process of a charity coding event on Nov. 26, 2011.Greek News: Instantly get the latest headlines from multiple Greek news sources in news, sports, technology and opinions with one click onto your Windows Phone. Uses RSS feeds. Sources are customizable from settings page. Based on news.codeplex.com.HMAC MD5: This is a simple implementation of the MD5 cryptographic hashing algorithm and HMAC-MD5. This class consists of fully transparent C# code, suitable for use in .NET, Silverlight and WP7 applications.KonMvc-?? .NET 3.5???????MVC??: ????C#?????MVC??, ????: 1.??APP ????????, 2,?GLOBAL??????? write???(???) ?????????????? 3.???????? MVC???????? ,??????? ??: ???? ,??????????? ????? ????CACHE?????????????Mini Proxy - a light-weight local proxy: a light-weight proxy written in C# (around 200 lines in total), it allows intercept HTTP traffic and hook custom code. Its initial scenario is to capture Http headers sent from a HttpWebRequest object. Limitations: Http 1.0 proxy Range header not forwardedMultimodal User Interface Builder: This project integrates several tools, frameworks and components in order to provide a graphical environment for the development of multimodal user interfaces. The Multimodal User Interface Builder provides development guidance based on mutimodal design patterns research.Om MVC: This is a simple hello world MVC project.Phone Net Tools: A collection of tools to overcome certain limitations of networking on the Windows Phone platform, in particular regarding DNS.Ps3RemoteSleep: A workaround to place the Sony Playstation 3 (PS3) Blu-ray Remote Control in sleep/sniff mode using the integrated Microsoft Bluetooth stack. For use with EventGhost/XBMC Windows 7 32/64 compatible. Simple CQRS Sample: A simple sample for a CQRS designet application. Includes: - RavenDB for Event- and ReadModel-Sorce - MessageBus based on Reactive Framework Rx - Razor MVC3 WebUI - Some more stuffSoftware Lab SDK: A collection of code helping in developmentSolution Import for Microsoft Dynamics CRM 2011: Solution Import for Microsoft Dynamics CRM 2011 makes it easier for developers and customizers of Microsoft Dynamics CRM 2011 to import a solution Zip file or a extracted solution folder to the server in one single operation.Team Badass: Class projectWCF step by step guide: This is an WCF step by step guide that explains how to make Web hosting and Self-hosting of services, and how to consume the services. It is intended for beginners. It's developed in C#When Pigs Fly: Flying PigsWindows Phone Wi-Fi Sensor JangKengPong: Windows Phone 7.5's Wi-Fi socket multicast group communication and Sensor sample application. This project includes Group Communication on LAN and Simple Gesture Recognition library.WPF Turn-based Strategy Wargame: This is a project to create a turn-based strategy game using the Windows Presentation Foundation. The technological foundations of the software allow new game maps to be easily stipulated in XAML, theoretically enabling support for multiple games.

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• Detecting HTML5/CSS3 Features using Modernizr

  - by dwahlin

  HTML5, CSS3, and related technologies such as canvas and web sockets bring a lot of useful new features to the table that can take Web applications to the next level. These new technologies allow applications to be built using only HTML, CSS, and JavaScript allowing them to be viewed on a variety of form factors including tablets and phones. Although HTML5 features offer a lot of promise, it’s not realistic to develop applications using the latest technologies without worrying about supporting older browsers in the process. If history has taught us anything it’s that old browsers stick around for years and years which means developers have to deal with backward compatibility issues. This is especially true when deploying applications to the Internet that target the general public. This begs the question, “How do you move forward with HTML5 and CSS3 technologies while gracefully handling unsupported features in older browsers?” Although you can write code by hand to detect different HTML5 and CSS3 features, it’s not always straightforward. For example, to check for canvas support you need to write code similar to the following:   <script> window.onload = function () { if (canvasSupported()) { alert('canvas supported'); } }; function canvasSupported() { var canvas = document.createElement('canvas'); return (canvas.getContext && canvas.getContext('2d')); } </script> If you want to check for local storage support the following check can be made. It’s more involved than it should be due to a bug in older versions of Firefox. <script> window.onload = function () { if (localStorageSupported()) { alert('local storage supported'); } }; function localStorageSupported() { try { return ('localStorage' in window && window['localStorage'] != null); } catch(e) {} return false; } </script> Looking through the previous examples you can see that there’s more than meets the eye when it comes to checking browsers for HTML5 and CSS3 features. It takes a lot of work to test every possible scenario and every version of a given browser. Fortunately, you don’t have to resort to writing custom code to test what HTML5/CSS3 features a given browser supports. By using a script library called Modernizr you can add checks for different HTML5/CSS3 features into your pages with a minimal amount of code on your part. Let’s take a look at some of the key features Modernizr offers.   Getting Started with Modernizr The first time I heard the name “Modernizr” I thought it “modernized” older browsers by added missing functionality. In reality, Modernizr doesn’t actually handle adding missing features or “modernizing” older browsers. The Modernizr website states, “The name Modernizr actually stems from the goal of modernizing our development practices (and ourselves)”. Because it relies on feature detection rather than browser sniffing (a common technique used in the past – that never worked that great), Modernizr definitely provides a more modern way to test features that a browser supports and can even handle loading additional scripts called shims or polyfills that fill in holes that older browsers may have. It’s a great tool to have in your arsenal if you’re a web developer. Modernizr is available at http://modernizr.com. Two different types of scripts are available including a development script and custom production script. To generate a production script, the site provides a custom script generation tool rather than providing a single script that has everything under the sun for HTML5/CSS3 feature detection. Using the script generation tool you can pick the specific test functionality that you need and ignore everything that you don’t need. That way the script is kept as small as possible. An example of the custom script download screen is shown next. Notice that specific CSS3, HTML5, and related feature tests can be selected. Once you’ve downloaded your custom script you can add it into your web page using the standard <script> element and you’re ready to start using Modernizr. <script src="Scripts/Modernizr.js" type="text/javascript"></script>   Modernizr and the HTML Element Once you’ve add a script reference to Modernizr in a page it’ll go to work for you immediately. In fact, by adding the script several different CSS classes will be added to the page’s <html> element at runtime. These classes define what features the browser supports and what features it doesn’t support. Features that aren’t supported get a class name of “no-FeatureName”, for example “no-flexbox”. Features that are supported get a CSS class name based on the feature such as “canvas” or “websockets”. An example of classes added when running a page in Chrome is shown next:   <html class=" js flexbox canvas canvastext webgl no-touch geolocation postmessage websqldatabase indexeddb hashchange history draganddrop websockets rgba hsla multiplebgs backgroundsize borderimage borderradius boxshadow textshadow opacity cssanimations csscolumns cssgradients cssreflections csstransforms csstransforms3d csstransitions fontface generatedcontent video audio localstorage sessionstorage webworkers applicationcache svg inlinesvg smil svgclippaths"> Here’s an example of what the <html> element looks like at runtime with Internet Explorer 9:   <html class=" js no-flexbox canvas canvastext no-webgl no-touch geolocation postmessage no-websqldatabase no-indexeddb hashchange no-history draganddrop no-websockets rgba hsla multiplebgs backgroundsize no-borderimage borderradius boxshadow no-textshadow opacity no-cssanimations no-csscolumns no-cssgradients no-cssreflections csstransforms no-csstransforms3d no-csstransitions fontface generatedcontent video audio localstorage sessionstorage no-webworkers no-applicationcache svg inlinesvg smil svgclippaths">   When using Modernizr it’s a common practice to define an <html> element in your page with a no-js class added as shown next:   <html class="no-js">   You’ll see starter projects such as HTML5 Boilerplate (http://html5boilerplate.com) or Initializr (http://initializr.com) follow this approach (see my previous post for more information on HTML5 Boilerplate). By adding the no-js class it’s easy to tell if a browser has JavaScript enabled or not. If JavaScript is disabled then no-js will stay on the <html> element. If JavaScript is enabled, no-js will be removed by Modernizr and a js class will be added along with other classes that define supported/unsupported features. Working with HTML5 and CSS3 Features You can use the CSS classes added to the <html> element directly in your CSS files to determine what style properties to use based upon the features supported by a given browser. For example, the following CSS can be used to render a box shadow for browsers that support that feature and a simple border for browsers that don’t support the feature: .boxshadow #MyContainer { border: none; -webkit-box-shadow: #666 1px 1px 1px; -moz-box-shadow: #666 1px 1px 1px; } .no-boxshadow #MyContainer { border: 2px solid black; }   If a browser supports box-shadows the boxshadow CSS class will be added to the <html> element by Modernizr. It can then be associated with a given element. This example associates the boxshadow class with a div with an id of MyContainer. If the browser doesn’t support box shadows then the no-boxshadow class will be added to the <html> element and it can be used to render a standard border around the div. This provides a great way to leverage new CSS3 features in supported browsers while providing a graceful fallback for older browsers. In addition to using the CSS classes that Modernizr provides on the <html> element, you also use a global Modernizr object that’s created. This object exposes different properties that can be used to detect the availability of specific HTML5 or CSS3 features. For example, the following code can be used to detect canvas and local storage support. You can see that the code is much simpler than the code shown at the beginning of this post. It also has the added benefit of being tested by a large community of web developers around the world running a variety of browsers.   $(document).ready(function () { if (Modernizr.canvas) { //Add canvas code } if (Modernizr.localstorage) { //Add local storage code } }); The global Modernizr object can also be used to test for the presence of CSS3 features. The following code shows how to test support for border-radius and CSS transforms:   $(document).ready(function () { if (Modernizr.borderradius) { $('#MyDiv').addClass('borderRadiusStyle'); } if (Modernizr.csstransforms) { $('#MyDiv').addClass('transformsStyle'); } });   Several other CSS3 feature tests can be performed such as support for opacity, rgba, text-shadow, CSS animations, CSS transitions, multiple backgrounds, and more. A complete list of supported HTML5 and CSS3 tests that Modernizr supports can be found at http://www.modernizr.com/docs.   Loading Scripts using Modernizr In cases where a browser doesn’t support a specific feature you can either provide a graceful fallback or load a shim/polyfill script to fill in missing functionality where appropriate (more information about shims/polyfills can be found at https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-Browser-Polyfills). Modernizr has a built-in script loader that can be used to test for a feature and then load a script if the feature isn’t available. The script loader is built-into Modernizr and is also available as a standalone yepnope script (http://yepnopejs.com). It’s extremely easy to get started using the script loader and it can really simplify the process of loading scripts based on the availability of a particular browser feature. To load scripts dynamically you can use Modernizr’s load() function which accepts properties defining the feature to test (test property), the script to load if the test succeeds (yep property), the script to load if the test fails (nope property), and a script to load regardless of if the test succeeds or fails (both property). An example of using load() with these properties is show next: Modernizr.load({ test: Modernizr.canvas, yep: 'html5CanvasAvailable.js’, nope: 'excanvas.js’, both: 'myCustomScript.js' }); In this example Modernizr is used to not only load scripts but also to test for the presence of the canvas feature. If the target browser supports the HTML5 canvas then the html5CanvasAvailable.js script will be loaded along with the myCustomScript.js script (use of the yep property in this example is a bit contrived – it was added simply to demonstrate how the property can be used in the load() function). Otherwise, a polyfill script named excanvas.js will be loaded to add missing canvas functionality for Internet Explorer versions prior to 9. Once excanvas.js is loaded the myCustomScript.js script will be loaded. Because Modernizr handles loading scripts, you can also use it in creative ways. For example, you can use it to load local scripts when a 3rd party Content Delivery Network (CDN) such as one provided by Google or Microsoft is unavailable for whatever reason. The Modernizr documentation provides the following example that demonstrates the process for providing a local fallback for jQuery when a CDN is down:   Modernizr.load([ { load: '//ajax.googleapis.com/ajax/libs/jquery/1.6.4/jquery.js', complete: function () { if (!window.jQuery) { Modernizr.load('js/libs/jquery-1.6.4.min.js'); } } }, { // This will wait for the fallback to load and // execute if it needs to. load: 'needs-jQuery.js' } ]); This code attempts to load jQuery from the Google CDN first. Once the script is downloaded (or if it fails) the function associated with complete will be called. The function checks to make sure that the jQuery object is available and if it’s not Modernizr is used to load a local jQuery script. After all of that occurs a script named needs-jQuery.js will be loaded. Conclusion If you’re building applications that use some of the latest and greatest features available in HTML5 and CSS3 then Modernizr is an essential tool. By using it you can reduce the amount of custom code required to test for browser features and provide graceful fallbacks or even load shim/polyfill scripts for older browsers to help fill in missing functionality. 

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• CodePlex Daily Summary for Thursday, September 20, 2012

  CodePlex Daily Summary for Thursday, September 20, 2012Popular ReleasesSiteMap Editor for Microsoft Dynamics CRM 2011: SiteMap Editor (1.1.2020.421): New features: Disable a specific part of SiteMap to keep the data without displaying them in the CRM application. It simply comments XML part of the sitemap (thanks to rboyers for this feature request) Right click an item and click on "Disable" to disable it Items disabled are greyed and a suffix "- disabled" is added Right click an item and click on "Enable" to enable it Refresh list of web resources in the web resources pickerWPF Animated GIF: WPF Animated GIF 1.2.1: Bug fixes 1275: fixed rendering issues when DisposalMethod = 2 or 3AJAX Control Toolkit: September 2012 Release: AJAX Control Toolkit Release Notes - September 2012 Release Version 60919September 2012 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4.5 – AJAX Control Toolkit for .NET 4.5 and sample site (Recommended). AJAX Control Toolkit .NET 4 – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - The current version of the AJAX Control Toolkit is not compatible with ...Lib.Web.Mvc & Yet another developer blog: Lib.Web.Mvc 6.1.0: Lib.Web.Mvc is a library which contains some helper classes for ASP.NET MVC such as strongly typed jqGrid helper, XSL transformation HtmlHelper/ActionResult, FileResult with range request support, custom attributes and more. Release contains: Lib.Web.Mvc.dll with xml documentation file Standalone documentation in chm file and change log Library source code Sample application for strongly typed jqGrid helper is available here. Sample application for XSL transformation HtmlHelper/ActionRe...Sense/Net CMS - Enterprise Content Management: SenseNet 6.1.2 Community Edition: Sense/Net 6.1.2 Community EditionMain new featuresOur current release brings a lot of bugfixes, including the resolution of js/css editing cache issues, xlsx file handling from Office, expense claim demo workspace fixes and much more. Besides fixes 6.1.2 introduces workflow start options and other minor features like a reusable Reject client button for approval scenarios and resource editor enhancements. We have also fixed an issue with our install package to bring you a flawless installation...WinRT XAML Toolkit: WinRT XAML Toolkit - 1.2.3: WinRT XAML Toolkit based on the Windows 8 RTM SDK. Download the latest source from the SOURCE CODE page. For compiled version use NuGet. You can add it to your project in Visual Studio by going to View/Other Windows/Package Manager Console and entering: PM> Install-Package winrtxamltoolkit Features AsyncUI extensions Controls and control extensions Converters Debugging helpers Imaging IO helpers VisualTree helpers Samples Recent changes NOTE: Namespace changes DebugConsol...Python Tools for Visual Studio: 1.5 RC: PTVS 1.5RC Available! We’re pleased to announce the release of Python Tools for Visual Studio 1.5 RC. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python language. PTVS supports a broad range of features including CPython/IronPython, Edit/Intellisense/Debug/Profile, Cloud, HPC, IPython, etc. support. The primary new feature for the 1.5 release is Django including Azure support! The http://www.djangoproject.com is a pop...Launchbar: Lanchbar 4.0.0: First public release.AssaultCube Reloaded: 2.5.4 -: Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, please wait while we try to package for those OSes. Try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compile your own for Linux (source included) Changelog: New logo Improved airstrike! Reset nukes...Extended WPF Toolkit: Extended WPF Toolkit - 1.7.0: Want an easier way to install the Extended WPF Toolkit?The Extended WPF Toolkit is available on Nuget. What's new in the 1.7.0 Release?New controls Zoombox Pie New features / bug fixes PropertyGrid.ShowTitle property added to allow showing/hiding the PropertyGrid title. Modifications to the PropertyGrid.EditorDefinitions collection will now automatically be applied to the PropertyGrid. Modifications to the PropertyGrid.PropertyDefinitions collection will now be reflected automaticaly...JayData - The cross-platform HTML5 data-management library for JavaScript: JayData 1.2: JayData is a unified data access library for JavaScript to CRUD + Query data from different sources like OData, MongoDB, WebSQL, SqLite, Facebook or YQL. The library can be integrated with Knockout.js or Sencha Touch 2 and can be used on Node.js as well. See it in action in this 6 minutes video Sencha Touch 2 example app using JayData: Netflix browser. What's new in JayData 1.2 For detailed release notes check the release notes. JayData core: all async operations now support promises JayDa...????????API for .Net SDK: SDK for .Net ??? Release 4: 2012?9?17??? ?????，???????????????。 ?????Release 3??????，???????，???，??? ??????????????????SDK，????????。 ??，??????? That's all.VidCoder: 1.4.0 Beta: First Beta release! Catches up to HandBrake nightlies with SVN 4937. Added PGS (Blu-ray) subtitle support. Additional framerates available: 30, 50, 59.94, 60 Additional sample rates available: 8, 11.025, 12 and 16 kHz Additional higher bitrates available for audio. Same as Source Constant Framerate available. Added Apple TV 3 preset. Added new Bob deinterlacing option. Introduced process isolation for encodes. Now if HandBrake crashes, VidCoder will keep running and continue pro...DNN Metro7 style Skin package: Metro7 style Skin for DotNetNuke 06.02.01: Stabilization release fixed this issues: Links not worked on FF, Chrome and Safari Modified packaging with own manifest file for install and source package. Moved the user Image on the Login to the left side. Moved h2 font-size to 24px. Note : This release Comes w/o source package about we still work an a solution. Who Needs the Visual Studio source files please go to source and download it from there. Known 16 CSS issues that related to the skin.css. All others are DNN default o...Visual Studio Icon Patcher: Version 1.5.1: This fixes a bug in the 1.5 release where it would crash when no language packs were installed for VS2010.VFPX: Desktop Alerts 1.0.2: This update for the Desktop Alerts contains changes to behavior for setting custom sounds for alerts. I have removed ALERTWAV.TXT from the project, and also removed DA_DEFAULTSOUND from the VFPALERT.H file. The AlertManager class and Alert class both have a "default" cSound of ADDBS(JUSTPATH(_VFP.ServerName))+"alert.wav" --- so, as long as you distribute a sound file with the file name "alert.wav" along with the EXE, that file will be used. You can set your own sound file globally by setti...MCEBuddy 2.x: MCEBuddy 2.2.15: Changelog for 2.2.15 (32bit and 64bit) 1. Added support for %originalfilepath% to get the source file full path. Used for custom commands only. 2. Added support for better parsing of Media Portal XML files to extract ShowName and Episode Name and download additional details from TVDB (like Season No, Episode No etc). 3. Added support for TVDB seriesID in metadata 4. Added support for eMail non blocking UI testEmmaClient - Liveresults for Orienteering: EmmaClient 2012-09-13: Minor release with a small fix for producing OS2012 results (and status of runners in the forest)Multiple Image choice custom field type: MultipleImageUpload V1.0: This is the Custom field type which allows the users to choose image as a choice field. This custom field type is SharePoint 2010, install the WSP thru powershell or Stsadm tool and enjoy the functionality...MDS Administration: Version 1.1.3: Fixed Rename issueNew Projects3dxia: bug3dxiaBitbucket Issue Tracker: A simple issue-tracking Windows client for your projects hosted on bitbucket.org.C++ thread-safe logging: Visual Studio C++ log library project: add to your project for thread-safe logging capabilities.Caddies GeoNote: The work started from making a vision for a neighbourhood communication platform, and ended up in creating the version 1.0 of a mobile application – GeoNotes – CodePlexGitHookForAzure: TestCommerce Server Pipeline Log Analyzer: This tool read and analyze pipeline logs under one selected folder. It applies to Microsoft Commerce Server 2002, 2007, 2009 and 2009 R2 Pipeline logs.Contrib.Mod.ResetPassword: Send reset link as a shapeContrib.Taxonomies.ViewExtension: Orchard module that adds a filter box to the taxonomies selector.EasierRdp: This is a remote desktop session management tool which provides an easy way to maintain multiple users and servers' connectionEconomic news grabber: WCF service for get news from rss, news sites and etc. WPF client for presentation this data for end users.Eticaret Sitesi: eee ticFacebook Graph API SDK Helper Class Library: Facebook C# Graph API SDK Helper Class Under developmentfxch01v14: helloKarned 2: Karned est un carnet de pêche informatique. Ce logiciel permet de noter vos prises de pêche à des fins d'analyse, ou simplement pour le souvenir...lixotrash: SandBox and POCs collections, not interesting hereLoggerLib: The project is a "Tracing Library" developed in a Borland C++ enviroment. Il progetto consiste in una libreria di tracciamento, sviluppata in ambiente Borland.LyncTalker: A simple tray application which will speak incoming Lync instant messages.MicroFrameWork: MicroFrameWorkNuzzle: 2.6.5 Dofus EmulatorPDF Merge: PDF Merge is a simple user-friendly application that allows you to merge multiple PDF documents including scanned / imported documents and images into 1 PDF.Pipeline: A library of several lightweight pipeline implementations ("pipes and filters" pattern).Prime Calculator: PrimeCalculator factorizes a number or a math expression into its prime factors or if prime display its prime type [Unit, Prime, Additive, Pure].Racing: not ready yetRuntime DataSet/DataTable viewer: This component basically allows you to inspect the contents of any Data Set or a Data Table at runtime without breaking into the debugger again and again.Service billing: Student group work for the College of West Anglia UCWA. Snake!: A Snake game written in C#SoccerBot: this is just a test projectSQL Server Trace File Import Utility: Command-line utility to import trace files into a data warehouse type structure. Currently it only handles Login events.testscenairo7onv14: helloToQueryString: Serialize any object in C# to a query string with the .ToQueryString() extension method. Supports primitives, strings, arrays and collections.tyajz: tyajz projectWindows Azure Table Storage: you can find all the details in my blog: hhaggan.wordpress.com and if you do have any question or inquiries feel free to contact me at hhaggan@hotmail.comwtcms: wtcms

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• AddHandler not working?

  - by EdenMachine

  I can't figure out why my addhandler is not firing? In the Sub "CreateTagStyle" thd AddHandler is to firing when the LinkButton is clicked Is there some reason that addhandlers can't be adding at certain points of the page lifecycle? <%@ Page Title="" Language="VB" MasterPageFile="~/_Common/Admin.master" %> <script runat="server"> Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) End Sub Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) If Not e.IsFromDetailTable Then Dim forms As New MB.RequestFormPacket() RadGrid1.DataSource = forms.GetPackets() End If End Sub Protected Sub RadGrid1_DetailTableDataBind(ByVal source As Object, ByVal e As Telerik.Web.UI.GridDetailTableDataBindEventArgs) Select Case e.DetailTableView.Name Case "gtvForms" Dim PacketID As Guid = e.DetailTableView.ParentItem.GetDataKeyValue("ID") e.DetailTableView.DataSource = MB.RequestForm.GetRequestForms(PacketID) End Select End Sub Protected Sub RadGrid1_InsertCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) If IsValid Then Select Case TryCast(e.Item.NamingContainer.NamingContainer, GridTableView).Name Case "gtvPackets" Dim rtbName As RadTextBox = TryCast(e.Item.FindControl("rtbName"), RadTextBox) Dim IsActive As Boolean = TryCast(e.Item.FindControl("cbxIsActive"), CheckBox).Checked Dim packet As New MB.RequestFormPacket() packet.Name = rtbName.Text packet.IsActive = IsActive packet.Insert() e.Canceled = True e.Item.OwnerTableView.IsItemInserted = False RadGrid1.Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Request Form Packet has been added successfully.');", True) Case "gtvForms" Dim parentItem As GridDataItem = e.Item.OwnerTableView.ParentItem Dim rcbForms As RadComboBox = TryCast(e.Item.FindControl("rcbForms"), RadComboBox) Dim rf As New MB.RequestForm() rf.RequestFormPacketID = CType(parentItem.OwnerTableView.DataKeyValues(parentItem.ItemIndex)("ID"), Guid) rf.FormID = rcbForms.SelectedValue If MB.RequestFormPacket.HasItems(rf.RequestFormPacketID) Then rf.SortOrder = rf.MaxSortOrder + 1 Else rf.SortOrder = 0 End If rf.Insert() e.Canceled = True e.Item.OwnerTableView.IsItemInserted = False TryCast(e.Item.NamingContainer.NamingContainer, GridTableView).Rebind() End Select End If End Sub Protected Sub RadGrid1_UpdateCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) If IsValid Then Select Case TryCast(e.Item.NamingContainer, GridTableView).Name Case "gtvPackets" Dim PacketID As Guid = CType(CType(e.CommandSource, Button).NamingContainer, GridEditFormItem).GetDataKeyValue("ID") Dim Name As String = TryCast(e.Item.FindControl("rtbName"), RadTextBox).Text Dim Tags As String = TryCast(e.Item.FindControl("hdnTags"), HiddenField).Value Dim IsActive As Boolean = TryCast(e.Item.FindControl("cbxIsActive"), CheckBox).Checked Dim rfp As New MB.RequestFormPacket() rfp.Update(PacketID, Name, IsActive) Call MB.RequestFormPacketTag.Insert(PacketID, Tags) e.Item.Edit = False TryCast(e.Item.NamingContainer, GridTableView).Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Request Form Packet has been updated successfully.');", True) Case "gtvForms" Dim RequestFormID As Guid = CType(CType(e.CommandSource, Button).NamingContainer, GridEditFormItem).GetDataKeyValue("ID") Dim rcbForms As RadComboBox = TryCast(e.Item.FindControl("rcbForms"), RadComboBox) Dim rf As New MB.RequestForm() rf.Update(RequestFormID, rcbForms.SelectedValue) e.Item.Edit = False TryCast(e.Item.NamingContainer, GridTableView).Rebind() End Select End If End Sub Protected Sub RadGrid1_DeleteCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Dim editedItem As GridEditableItem = TryCast(e.Item, GridEditableItem) Select Case CType(editedItem.Parent.Parent, GridTableView).Name Case "gtvPackets" Dim ID As Guid = CType(CType(e.CommandSource, ImageButton).NamingContainer, GridDataItem).GetDataKeyValue("ID") MB.RequestFormPacket.Delete(ID) System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "NotifyMessage('Request Form Packet has been deleted.');", True) Case "gtvForms" Dim ID As Guid = CType(CType(e.CommandSource, ImageButton).NamingContainer, GridDataItem).GetDataKeyValue("ID") MB.RequestForm.Delete(ID) System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "NotifyMessage('Request Form has been removed.');", True) End Select End Sub Protected Sub ibnItemUpArrow_Command(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs) Dim gtv As GridTableView = CType(CType(sender, ImageButton).NamingContainer.NamingContainer, GridTableView) Dim ID As Guid = New Guid(e.CommandArgument.ToString()) Call MB.RequestForm.MoveUp(ID) gtv.Rebind() End Sub Protected Sub ibnItemDownArrow_Command(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs) Dim gtv As GridTableView = CType(CType(sender, ImageButton).NamingContainer.NamingContainer, GridTableView) Dim ID As Guid = New Guid(e.CommandArgument.ToString()) Call MB.RequestForm.MoveDown(ID) gtv.Rebind() End Sub Protected Sub RadGrid1_RowDrop(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridDragDropEventArgs) If String.IsNullOrEmpty(e.HtmlElement) Then If e.DraggedItems(0).OwnerGridID = RadGrid1.ClientID Then If e.DestDataItem IsNot Nothing Then Dim gtv As GridTableView = CType(e.DestDataItem.NamingContainer, GridTableView) For Each gdi As GridDataItem In e.DraggedItems Select Case gtv.Name Case "gtvForms" MB.RequestForm.DragAndDropReorder(gdi.GetDataKeyValue("ID"), e.DestDataItem.GetDataKeyValue("ID"), IIf(e.DropPosition = GridItemDropPosition.Above, True, False)) gtv.Rebind() End Select Next End If End If End If End Sub Protected Sub cbxAllowDragAndDrop_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Dim cbx As CheckBox = CType(sender, CheckBox) If cbx.Checked Then RadGrid1.ClientSettings.AllowRowsDragDrop = True RadGrid1.ClientSettings.Selecting.AllowRowSelect = True RadGrid1.ClientSettings.Selecting.EnableDragToSelectRows = True Else RadGrid1.ClientSettings.AllowRowsDragDrop = False RadGrid1.ClientSettings.Selecting.AllowRowSelect = False RadGrid1.ClientSettings.Selecting.EnableDragToSelectRows = False End If End Sub Protected Sub ibnDisableToggleProcess_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Dim ibn As ImageButton = CType(sender, ImageButton) Dim hdn As HiddenField = CType(ibn.NamingContainer.FindControl("hdnDisableProcessID"), HiddenField) Dim status As Boolean = MB.RequestFormPacket.ActivateToggle(New Guid(hdn.Value)) Dim gtv As GridTableView = CType(ibn.NamingContainer.NamingContainer, GridTableView) gtv.Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Process has been " & IIf(status, "Activated", "Deactivated") & ".');", True) End Sub Protected Function DisplayTagList(ByVal tags As IEnumerable(Of MB.RequestFormPacketTag)) As String Dim list As String = "" For Each t As MB.RequestFormPacketTag In tags list += "<span class=""tags"">" & t.Tag.Name & "</span>" Next Return list End Function Protected Sub RadGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Select Case e.Item.GetType.Name Case "GridEditFormInsertItem" 'do nothing Case "GridEditFormItem" Dim plh As PlaceHolder = CType(e.Item.FindControl("plhTags"), PlaceHolder) Dim hdn As HiddenField = CType(e.Item.FindControl("hdnTags"), HiddenField) If hdn IsNot Nothing Then Dim gefi As GridEditFormItem = e.Item Dim packet As MB.RequestFormPacket = gefi.DataItem For Each pt As MB.RequestFormPacketTag In packet.RequestFormPacketTags Call CreateTagStyle(plh, hdn, pt.Tag.Name) If hdn.Value = "" Then hdn.Value = "|" End If hdn.Value += pt.Tag.Name & "|" Next End If End Select End Sub Protected Sub btnAddTag_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim btnAddTag As Button = sender Dim rtbTags As RadTextBox = btnAddTag.NamingContainer.FindControl("rtbTags") Dim plhTags As PlaceHolder = btnAddTag.NamingContainer.FindControl("plhTags") Dim hdnTags As HiddenField = btnAddTag.NamingContainer.FindControl("hdnTags") Dim TagExists As Boolean = False rtbTags.Text = rtbTags.Text.ToUpper().Trim() Dim currentTags() As String = Split(hdnTags.Value, "|") For i As Integer = 1 To currentTags.Count - 2 Call CreateTagStyle(plhTags, hdnTags, currentTags(i)) Next If TagExists = False And String.IsNullOrEmpty(rtbTags.Text) = False Then Call CreateTagStyle(plhTags, hdnTags, rtbTags.Text) If String.IsNullOrEmpty(hdnTags.Value) Then hdnTags.Value = "|" End If hdnTags.Value += rtbTags.Text & "|" 'System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "highlightTag('" & lbn.ClientID & "');", True) End If rtbTags.Text = "" rtbTags.Focus() End Sub Public Sub RemoveTag(ByVal sender As Object, ByVal e As EventArgs) Response.End() Dim lbnSender As LinkButton = sender Dim plhTags As PlaceHolder = lbnSender.NamingContainer.FindControl("plhTags") Dim hdnTags As HiddenField = lbnSender.NamingContainer.FindControl("hdnTags") Response.Write(hdnTags.Value) Response.End() Dim TagExists As Boolean = False Dim currentTags() As String = Split(hdnTags.Value, "|") For i As Integer = 1 To currentTags.Count - 2 Call CreateTagStyle(plhTags, hdnTags, currentTags(i)) Next End Sub Protected Sub CreateTagStyle(ByVal plh As PlaceHolder, ByVal hdn As HiddenField, ByVal tagName As String) Dim lbn As New LinkButton() lbn.ID = "lbn_" & hdn.ClientID & "_" & tagName lbn.CssClass = "deleteCreateTag" lbn.Text = "X" AddHandler lbn.Click, AddressOf RemoveTag plh.Controls.Add(New LiteralControl("<div><span class=showTag>" & tagName & "</span>")) plh.Controls.Add(lbn) plh.Controls.Add(New LiteralControl("</div>")) End Sub </script> <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> <style type="text/css"> .tags { border:solid 1px #93AFE5; background-color:#F3F7F8; margin: 0px 2px 0px 2px; padding: 0px 4px 0px 4px; font-family:Verdana; font-size:10px; text-transform:uppercase; } </style> <script type="text/javascript"> function highlightTag(id) { $("#" + id).highlightFade({ color: '#FFFF99', speed: 2000, iterator: 'sinusoidal' }); } </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" DefaultLoadingPanelID="RadAjaxLoadingPanel1" EnableAJAX="false"> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="RadGrid1"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadGrid1" /> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings> </telerik:RadAjaxManager> <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" /> <telerik:RadTabStrip ID="RadTabStrip1" runat="server" Skin="WebBlue" style="position:relative;top:1px;" ValidationGroup="vgTabs"> <Tabs> <telerik:RadTab Text="Request Form Packets" Selected="true" ImageUrl="~/Admin/Images/Packet2.png" /> <telerik:RadTab Text="Request Forms" NavigateUrl="Forms.aspx" ImageUrl="~/Admin/Images/Forms.png" /> </Tabs> </telerik:RadTabStrip> <asp:ObjectDataSource ID="odsForms" runat="server" TypeName="MB.Form" SelectMethod="GetForms" /> <asp:Panel ID="pnlContent" runat="server" CssClass="ContentPanel"> <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="True" GridLines="None" OnNeedDataSource="RadGrid1_NeedDataSource" AllowAutomaticUpdates="true" AllowAutomaticDeletes="true" AllowAutomaticInserts="true" OnInsertCommand="RadGrid1_InsertCommand" OnUpdateCommand="RadGrid1_UpdateCommand" OnDeleteCommand="RadGrid1_DeleteCommand" OnRowDrop="RadGrid1_RowDrop" OnDetailTableDataBind="RadGrid1_DetailTableDataBind" OnItemDataBound="RadGrid1_ItemDataBound"> <%-----------------------------------------------------------%> <%------------------------- PACKETS -------------------------%> <%-----------------------------------------------------------%> <MasterTableView AutoGenerateColumns="False" DataKeyNames="ID" ClientDataKeyNames="ID" ShowHeadersWhenNoRecords="true" Name="gtvPackets" NoMasterRecordsText="There are currently no Request Form Packets" GroupLoadMode="Client" RetrieveNullAsDBNull="true" CommandItemDisplay="Top" AllowAutomaticUpdates="true" AllowAutomaticDeletes="true" AllowAutomaticInserts="true"> <RowIndicatorColumn> <HeaderStyle Width="20px"></HeaderStyle> </RowIndicatorColumn> <ExpandCollapseColumn> <HeaderStyle Width="20px"></HeaderStyle> </ExpandCollapseColumn> <CommandItemTemplate> <table width="100%"> <tr> <td class="AdminGridHeader">&nbsp;<img src="../Admin/Images/Packet2.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;Request Form Packets</td> <td width="1%"><asp:CheckBox ID="cbxAllowDragAndDrop" runat="server" AutoPostBack="true" OnCheckedChanged="cbxAllowDragAndDrop_CheckedChanged" /></td> <td width="1%" nowrap="nowrap"><asp:Label AssociatedControlID="cbxAllowDragAndDrop" ID="Label1" runat="server" Text="Enable Drag and Drop Reordering" ToolTip="Drag and Drop Reordering applies only to Forms." /></td> <td align="right" width="1%"><asp:Button ID="btnAddPacket" Text="Create New Packet" runat="server" CommandName="InitInsert" /></td> </tr> </table> </CommandItemTemplate> <EditFormSettings> <EditColumn ButtonType="PushButton" HeaderStyle-Font-Bold="true" UniqueName="EditCommandColumn" /> </EditFormSettings> <EditItemStyle Font-Bold="true" BackColor="#FFFFCC" /> <Columns> <telerik:GridTemplateColumn HeaderText="Packet Name" UniqueName="PacketName" SortExpression="Name"> <ItemTemplate> <img src="../Admin/Images/Packet2.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;<%#Eval("Name")%> </ItemTemplate> <EditItemTemplate> <telerik:RadTextBox runat="server" ID="rtbName" Width="300" Text='<%# Bind("Name") %>' /> <asp:RequiredFieldValidator ID="rfvName" runat="server" ErrorMessage="Required" ControlToValidate="rtbName" /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Tags" UniqueName="Tags"> <ItemTemplate> <%#DisplayTagList(Eval("RequestFormPacketTags"))%> </ItemTemplate> <EditItemTemplate> <asp:Panel ID="pnlAddTags" runat="server" DefaultButton="btnAddTag"> <table cellpadding="0" cellspacing="0"> <tr> <td> <telerik:RadTextBox ID="rtbTags" runat="server" Width="200" style="text-transform:uppercase;" /> <asp:RegularExpressionValidator ID="revTags" runat="server" ErrorMessage="Invalid Entry" ControlToValidate="rtbTags" Display="Dynamic" ValidationExpression="^[^<>`~!/@\#}$%:;)(_^{&*=|+]+$" ValidationGroup="vgTags" /> </td> <td> <asp:Button ID="btnAddTag" runat="server" ValidationGroup="vgTags" Text="Add" OnClick="btnAddTag_Click" /> </td> </tr> </table> </asp:Panel> <div id="divTags"> <asp:PlaceHolder id="plhTags" runat="server" /> <asp:HiddenField ID="hdnTags" runat="server" /> </div> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderTooltip="Disable" ItemStyle-Width="1%" ItemStyle-HorizontalAlign="Center" SortExpression="IsActive" UniqueName="IsActive" ReadOnly="true"> <ItemTemplate> <asp:ImageButton ID="ibnDisabledProcess" runat="server" ImageUrl="../Images/Icons/Stop.png" Width="16" OnClientClick="return window.confirm('Activate this Process?');" ToolTip="Click to activate this Request for Account use." Visible='<%#IIF(Eval("IsActive"),false,true) %>' OnClick="ibnDisableToggleProcess_Click" /> <asp:ImageButton ID="ibnEnabledProcess" runat="server" ImageUrl="../Images/Icons/Stop_disabled.png" Width="16" OnClientClick="return window.confirm('Deactivate this Process?');" ToolTip="Click to deactivate this Request for Account use." Visible='<%#IIF(Eval("IsActive"),true,false) %>' OnClick="ibnDisableToggleProcess_Click" /> <asp:HiddenField ID="hdnDisableProcessID" runat="server" Value='<%#Eval("ID") %>' /> </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Is Active" UniqueName="IsActiveCheckbox" Display="false"> <EditItemTemplate> <asp:CheckBox ID="cbxIsActive" runat="server" Checked='<%# IIF(Eval("IsActive") Is DbNull.Value OrElse Eval("IsActive") = False,False,True) %>' /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridEditCommandColumn ButtonType="ImageButton" EditText="Edit Admin" ItemStyle-Width="16" EditImageUrl="~/Images/edit-small.png" /> <telerik:GridButtonColumn ConfirmText="Do you really want to delete this Admin? WARNING: THIS CANNOT BE UNDONE!!" ConfirmDialogType="RadWindow" ConfirmTitle="Delete" ButtonType="ImageButton" CommandName="Delete" Text="Delete Admin" ImageUrl="~/Images/Delete.png" UniqueName="DeleteColumn"> <ItemStyle HorizontalAlign="Center" Width="16" /> </telerik:GridButtonColumn> </Columns> <DetailTables> <%-----------------------------------------------------------%> <%-------------------------- FORMS --------------------------%> <%-----------------------------------------------------------%> <telerik:GridTableView Name="gtvForms" AllowPaging="true" PagerStyle-Position="TopAndBottom" PageSize="20" AutoGenerateColumns="false" DataKeyNames="RequestFormPacketID,ID" runat="server" CommandItemDisplay="Top" Width="100%"> <ParentTableRelation> <telerik:GridRelationFields DetailKeyField="RequestFormPacketID" MasterKeyField="ID" /> </ParentTableRelation> <CommandItemTemplate> <table width="100%" class="AdminGridHeaders"> <tr> <td class="AdminGridHeaders"> &nbsp;<img src="../Admin/Images/Forms.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;Forms </td> <td align="right"> <asp:Button ID="ibnAdd" runat="server" Text="Add Form" CommandName="InitInsert" /> </td> </tr> </table> </CommandItemTemplate> <EditFormSettings> <EditColumn ButtonType="PushButton" InsertText="Save" UpdateText="Update" CancelText="Cancel" /> </EditFormSettings> <EditItemStyle Font-Bold="true" BackColor="#FFFFCC" /> <Columns> <telerik:GridTemplateColumn HeaderText="Form Name" UniqueName="FormName"> <ItemTemplate> <img src="../Admin/Images/Forms.png" align="absmiddle" width="16" height="16" style="margin-right:4px;" /> <%#Eval("Form.Name")%> </ItemTemplate> <EditItemTemplate> <telerik:RadComboBox ID="rcbForms" runat="server" DataSourceID="odsForms" AppendDataBoundItems="true" DataTextField="Name" DataValueField="ID" SelectedValue='<%#Bind("FormID")%>'> <Items> <telerik:RadComboBoxItem Text="-- Select a Form --" Value="" /> </Items> </telerik:RadComboBox> <asp:RequiredFieldValidator ID="rfvForms" runat="server" ErrorMessage="Required" ControlToValidate="rcbForms" InitialValue="-- Select a Form --" Display="Dynamic" /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Test" ReadOnly="true" UniqueName="TestForm" HeaderStyle-Width="1%" ItemStyle-HorizontalAlign="Center"> <ItemTemplate> <asp:HyperLink ID="hypTestForm" runat="server" NavigateUrl='<%# "FormsPreview.aspx?fid=" & Eval("FormID").ToString() & "&test=true" %>' Target="_blank"><asp:Image ID="imgTestProcess" runat="server" ImageUrl="~/Admin/Images/Test.png" ImageAlign="AbsMiddle" ToolTip="Test Form" /></asp:HyperLink> </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Header" SortExpression="Header" UniqueName="Header"> <ItemTemplate> <%#Eval("Form.Header")%>&nbsp; </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn ReadOnly="true" ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="1%" HeaderStyle-Wrap="false" ItemStyle-Wrap="false" UniqueName="SortOrder"> <ItemTemplate> <asp:ImageButton ID="ibnItemUpArrow" runat="server" Width="16" height="16" ImageUrl="~/Admin/Images/ArrowUp.png" ImageAlign="AbsMiddle" Visible='<%#IIF(Eval("SortOrder") = 0,false,true) %>' CommandArgument='<%#Eval("ID") %>' OnCommand=

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• NHibernate.MappingException: No persister for:

  - by Sara Chipps

  Now, before you say it I DID google and my hbm.xml file IS an Embedded Resource. Here is the code I am calling: ISession session = GetCurrentSession(); var returnObject = session.Get<T>(Id); Here is my mapping file for the class: <?xml version="1.0" encoding="utf-8" ?> <hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"> <class name="HQData.Objects.SubCategory, HQData" table="SubCategory" lazy="true"> <id name="ID" column="ID" unsaved-value="0"> <generator class="identity" /> </id> <property name="Name" column="Name" /> <property name="NumberOfBuckets" column="NumberOfBuckets" /> <property name="SearchCriteriaOne" column="SearchCriteriaOne" /> <bag name="_Businesses" cascade="all"> <key column="SubCategoryId"/> <one-to-many class="HQData.Objects.Business, HQData"/> </bag> <bag name="_Buckets" cascade="all"> <key column="SubCategoryId"/> <one-to-many class="HQData.Objects.Bucket, HQData"/> </bag> </class> </hibernate-mapping> Has anyone run to this issue before? I swore that was it after I read it, but no dice. Here is the rest of the error and thanks for your help. MappingException: No persister for: HQData.Objects.SubCategory]NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName, Boolean throwIfNotFound) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionFactoryImpl.cs:766 NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionFactoryImpl.cs:752 NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Event\Default\DefaultLoadEventListener.cs:37 NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:2054 NHibernate.Impl.SessionImpl.Get(String entityName, Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:1029 NHibernate.Impl.SessionImpl.Get(Type entityClass, Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:1020 NHibernate.Impl.SessionImpl.Get(Object id) in c:\CSharp\NH2.0.0\nhibernate\src\NHibernate\Impl\SessionImpl.cs:985 HQData.DataAccessUtils.NHibernateObjectHelper.LoadDataObject(Int32 Id) in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQData\DataAccessUtils\NHibernateObjectHelper.cs:42 HQWebsite.LocalSearch.get_subCategory() in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQWebsite\LocalSearch.aspx.cs:17 HQWebsite.LocalSearch.Page_Load(Object sender, EventArgs e) in C:\Development\HQChannelRepo\HQ Channel Application\HQChannel\HQWebsite\LocalSearch.aspx.cs:27 System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +15 System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +33 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1436 I had changed some code and I wasn't adding the Assembly to the config file during runtime. Thanks for your help This has been fixed, I am not F-ing with my NHibernate setup ever again!

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• ASP.Net MVC2 CustomModelBinder not working... Changed from MVC1

  - by Ian

  (My apologies if this seems verbose - trying to provide all relevant code) I've just upgraded to VS2010, and am now having trouble trying to get a new CustomModelBinder working. In MVC1 I would have written something like public class AwardModelBinder: DefaultModelBinder { : public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { // do the base binding to bind all simple types Award award = base.BindModel(controllerContext, bindingContext) as Award; // Get complex values from ValueProvider dictionary award.EffectiveFrom = Convert.ToDateTime(bindingContext.ValueProvider["Model.EffectiveFrom"].AttemptedValue.ToString()); string sEffectiveTo = bindingContext.ValueProvider["Model.EffectiveTo"].AttemptedValue.ToString(); if (sEffectiveTo.Length > 0) award.EffectiveTo = Convert.ToDateTime(bindingContext.ValueProvider["Model.EffectiveTo"].AttemptedValue.ToString()); // etc return award; } } Of course I'd register the custom binder in Global.asax.cs: protected void Application_Start() { RegisterRoutes(RouteTable.Routes); // register custom model binders ModelBinders.Binders.Add(typeof(Voucher), new VoucherModelBinder(DaoFactory.UserInstance("EH1303"))); ModelBinders.Binders.Add(typeof(AwardCriterion), new AwardCriterionModelBinder(DaoFactory.UserInstance("EH1303"), new VOPSDaoFactory())); ModelBinders.Binders.Add(typeof(SelectedVoucher), new SelectedVoucherModelBinder(DaoFactory.UserInstance("IT0706B"))); ModelBinders.Binders.Add(typeof(Award), new AwardModelBinder(DaoFactory.UserInstance("IT0706B"))); } Now, in MVC2, I'm finding that my call to base.BindModel returns an object where everything is null, and I simply don't want to have to iterate all the form fields surfaced by the new ValueProvider.GetValue() function. Google finds no matches for this error, so I assume I'm doing something wrong. Here's my actual code: My domain object (infer what you like about the encapsulated child objects - I know I'll need custom binders for those too, but the three "simple" fields (ie. base types) Id, TradingName and BusinessIncorporated are also coming back null): public class Customer { /// <summary> /// Initializes a new instance of the Customer class. /// </summary> public Customer() { Applicant = new Person(); Contact = new Person(); BusinessContact = new ContactDetails(); BankAccount = new BankAccount(); } /// <summary> /// Gets or sets the unique customer identifier. /// </summary> public int Id { get; set; } /// <summary> /// Gets or sets the applicant details. /// </summary> public Person Applicant { get; set; } /// <summary> /// Gets or sets the customer's secondary contact. /// </summary> public Person Contact { get; set; } /// <summary> /// Gets or sets the trading name of the business. /// </summary> [Required(ErrorMessage = "Please enter your Business or Trading Name")] [StringLength(50, ErrorMessage = "A maximum of 50 characters is permitted")] public string TradingName { get; set; } /// <summary> /// Gets or sets the date the customer's business began trading. /// </summary> [Required(ErrorMessage = "You must supply the date your business started trading")] [DateRange("01/01/1900", "01/01/2020", ErrorMessage = "This date must be between {0} and {1}")] public DateTime BusinessIncorporated { get; set; } /// <summary> /// Gets or sets the contact details for the customer's business. /// </summary> public ContactDetails BusinessContact { get; set; } /// <summary> /// Gets or sets the customer's bank account details. /// </summary> public BankAccount BankAccount { get; set; } } My controller method: /// <summary> /// Saves a Customer object from the submitted application form. /// </summary> /// <param name="customer">A populate instance of the Customer class.</param> /// <returns>A partial view indicating success or failure.</returns> /// <httpmethod>POST</httpmethod> /// <url>/Customer/RegisterCustomerAccount</url> [HttpPost] [ValidateAntiForgeryToken] public ActionResult RegisterCustomerAccount(Customer customer) { if (ModelState.IsValid) { // save the Customer // return indication of success, or otherwise return PartialView(); } else { ViewData.Model = customer; // load necessary reference data into ViewData ViewData["PersonTitles"] = new SelectList(ReferenceDataCache.Get("PersonTitle"), "Id", "Name"); return PartialView("CustomerAccountRegistration", customer); } } My custom binder: public class CustomerModelBinder : DefaultModelBinder { public override object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) { ValueProviderResult vpResult = bindingContext .ValueProvider.GetValue(bindingContext.ModelName); // vpResult is null // MVC2 - ValueProvider is now an IValueProvider, not dictionary based anymore if (bindingContext.ValueProvider.GetValue("Model.Applicant.Title") != null) { // works } Customer customer = base.BindModel(controllerContext, bindingContext) as Customer; // customer instanitated with null (etc) throughout return customer; } } My binder registration: /// <summary> /// Application_Start is called once when the web application is first accessed. /// </summary> protected void Application_Start() { RegisterRoutes(RouteTable.Routes); // register custom model binders ModelBinders.Binders.Add(typeof(Customer), new CustomerModelBinder()); ReferenceDataCache.Populate(); } ... and a snippet from my view (could this be a prefix problem?) <div class="inputContainer"> <label class="above" for="Model_Applicant_Title" accesskey="t"><span class="accesskey">T</span>itle<span class="mandatoryfield">*</span></label> <%= Html.DropDownList("Model.Applicant.Title", ViewData["PersonTitles"] as SelectList, "Select ...", new { @class = "validate[required]" })%> <% Html.ValidationMessageFor(model => model.Applicant.Title); %> </div> <div class="inputContainer"> <label class="above" for="Model_Applicant_Forename" accesskey="f"><span class="accesskey">F</span>orename / First name<span class="mandatoryfield">*</span></label> <%= Html.TextBox("Model.Applicant.Forename", Html.Encode(Model.Applicant.Forename), new { @class = "validate[required,custom[onlyLetter],length[2,20]]", title="Enter your forename", maxlength = 20, size = 20, autocomplete = "off", onkeypress = "return maskInput(event,re_mask_alpha);" })%> </div> <div class="inputContainer"> <label class="above" for="Model_Applicant_MiddleInitials" accesskey="i">Middle <span class="accesskey">I</span>nitial(s)</label> <%= Html.TextBox("Model.Applicant.MiddleInitials", Html.Encode(Model.Applicant.MiddleInitials), new { @class = "validate[optional,custom[onlyLetter],length[0,8]]", title = "Please enter your middle initial(s)", maxlength = 8, size = 8, autocomplete = "off", onkeypress = "return maskInput(event,re_mask_alpha);" })%> </div>

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• .Net Intermittent System.Web.Services.Protocols.SoapHeaderException

  - by ScottE

  We have a .net 3.5 web app that consumes third party web services. The proxy was created by adding a web reference to their wsdl. This proxy is not compiled. Our error logging is picking up frequent but intermittent exceptions: An exception of type 'System.Web.Services.Protocols.SoapHeaderException' occurred and was caught If I follow the url to the page that generated the exception, I can't recreate it. Edit: Here is most of the exception - where it bubbled up from Message : Internal Error Type : System.Web.Services.Protocols.SoapHeaderException, System.Web.Services, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Source : System.Web.Services Help link : Actor : Code : http://schemas.xmlsoap.org/soap/envelope/:Client Detail : Lang : Node : Role : SubCode : Data : System.Collections.ListDictionaryInternal TargetSite : System.Object[] ReadResponse(System.Web.Services.Protocols.SoapClientMessage, System.Net.WebResponse, System.IO.Stream, Boolean) Stack Trace : at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) at Vendor.getSearch(getSearchRequest getSearchRequest) in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\be43c34e\b09edc7e\App_WebReferences.pww-cf-q.0.cs:line 73 Edit 2: Inner exceptions: I sometimes get the following inner exceptions logged: Message : Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. Type : System.IO.IOException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Source : System Help link : Data : System.Collections.ListDictionaryInternal TargetSite : Int32 Read(Byte[], Int32, Int32) Stack Trace : at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count) at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult) at System.Net.TlsStream.CallProcessAuthentication(Object state) at System.Threading.ExecutionContext.runTryCode(Object userData) at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result) at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size) at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size) at System.Net.ConnectStream.WriteHeaders(Boolean async) And/Or: Message : An existing connection was forcibly closed by the remote host Type : System.Net.Sockets.SocketException, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Source : System Help link : ErrorCode : 10054 SocketErrorCode : ConnectionReset NativeErrorCode : 10054 Data : System.Collections.ListDictionaryInternal TargetSite : Int32 Receive(Byte[], Int32, Int32, System.Net.Sockets.SocketFlags) Stack Trace : at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags) at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size) Update We're still working on it. Originally there was a route issue, which was resolved. We're still getting the inner exception with socket errors. We had MS support involved today, and they looked at some traces and network captures. The web service host does round-robin DNS, and they may be responding on a different IP address for the syn syn/ack from one ip, and the next from a different ip. This is not good. This is likely quite specific to our situation, but perhaps it applies to others as well. Microsoft Network Monitor and an application trace got us the information we needed.

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