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  • How to use SharePoint modal dialog box to display Custom Page Part3

    - by ybbest
    In the second part of the series, I showed you how to display and close a custom page in a SharePoint modal dialog using JavaScript and display a message after the modal dialog is closed. In this post, I’d like to show you how to use SPLongOperation with the Modal dialog box. You can download the source code here. 1. Firstly, modify the element file as follow   2. In your code behind, you can implement a close dialog function as below. This will close your modal dialog box once the button is clicked and display a status bar. Note that you need to use window.frameElement.commonModalDialogClose instead of window.frameElement.commonModalDialogClose References: How to: Display a Page as a Modal Dialog Box

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  • Create and use a Button class on AS3.0

    - by Madcowe
    I am currently working on a game and it is all going well. On the shop screen there are several buttons that affect the player's stats for when the player restarts the game. The button's names (with a text on the left), however, are rather cryptic and it's hard to figure out what they do unless you test or something. So the solution I came up with, is to create an InfoBox with an InfoText inside so that when the cursor is over the button it appears with the description, cost and etc. This I managed to do too however, the way I was about to do it would mean that I had to create 3 event listeners per button (CLICK, ROLL_OVER, ROLL_OUT) and, obviously, 3 functions connected to each event listener. Now, I don't mind much about having 1 event listener per button, for the click, but since the other events are just to make a box appear and disappear as well as display some text, I thought it was way too much of a mess of code. What I tried to do: I created a new class called InfoBoxButton, and this is the class' code: package { import flash.display.SimpleButton; import flash.display.MovieClip; import flash.ui.Mouse; import flash.events.MouseEvent; public class InfoBoxButton extends SimpleButton { public var description:String; public var infoBox:InfoBox; public function InfoBoxButton(description) { this.addEventListener( MouseEvent.ROLL_OVER, displayInfoText, false, 0, true); this.addEventListener( MouseEvent.ROLL_OUT, hideInfoText, false, 0, true); } private function displayInfoText() { infoBox.infoText.text = description; infoBox.visible = true; } private function hideInfoText() { infoBox.infoText.text = ""; infoBox.visible = false; } } } But now I don't have an idea how to associate it with the button, I have tried this: public var SoonButton:InfoBoxButton = new InfoBoxButton("This is merely a test"); The SoonButton is a button I made on the shopscreen, SoonButton is it's instance name, but I can't think of a way of associating one button to the other... I have been fiddling with the code for like 3 hours yesterday and no luck... can anyone give me some pointers on how I should go about doing it?

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  • Imperative Programming v/s Declarative Programming v/s Functional Programming

    - by kaleidoscope
    Imperative Programming :: Imperative programming is a programming paradigm that describes computation in terms of statements that change a program state. In much the same way as the imperative mood in natural languages expresses commands to take action, imperative programs define sequences of commands for the computer to perform. The focus is on what steps the computer should take rather than what the computer will do (ex. C, C++, Java). Declarative Programming :: Declarative programming is a programming paradigm that expresses the logic of a computation without describing its control flow. It attempts to minimize or eliminate side effects by describing what the program should accomplish, rather than describing how to go about accomplishing it. The focus is on what the computer should do rather than how it should do it (ex. SQL). A  C# example of declarative v/s. imperative programming is LINQ. With imperative programming, you tell the compiler what you want to happen, step by step. For example, let's start with this collection, and choose the odd numbers: List<int> collection = new List<int> { 1, 2, 3, 4, 5 }; With imperative programming, we'd step through this, and decide what we want: List<int> results = new List<int>(); foreach(var num in collection) {     if (num % 2 != 0)           results.Add(num); } Here’s what we are doing: *Create a result collection *Step through each number in the collection *Check the number, if it's odd, add it to the results With declarative programming, on the other hand, we write the code that describes what you want, but not necessarily how to get it var results = collection.Where( num => num % 2 != 0); Here, we're saying "Give us everything where it's odd", not "Step through the collection. Check this item, if it's odd, add it to a result collection." Functional Programming :: Functional programming is a programming paradigm that treats computation as the evaluation of mathematical functions and avoids state and mutable data. It emphasizes the application of functions.Functional programming has its roots in the lambda calculus. It is a subset of declarative languages that has heavy focus on recursion. Functional programming can be a mind-bender, which is one reason why Lisp, Scheme, and Haskell have never really surpassed C, C++, Java and COBOL in commercial popularity. But there are benefits to the functional way. For one, if you can get the logic correct, functional programming requires orders of magnitude less code than imperative programming. That means fewer points of failure, less code to test, and a more productive (and, many would say, happier) programming life. As systems get bigger, this has become more and more important. To know more : http://stackoverflow.com/questions/602444/what-is-functional-declarative-and-imperative-programming http://msdn.microsoft.com/en-us/library/bb669144.aspx http://en.wikipedia.org/wiki/Imperative_programming   Technorati Tags: Ranjit,Imperative Programming,Declarative programming,Functional Programming

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  • SQL SERVER – What is Denali?

    - by pinaldave
    I see following question quite common on Twitter or in my email box. “What is Denali?” Denali is code name of SQL Server 2011. Here is the list of the code name of other versions of SQL Server. In 1988, Microsoft released its first version of SQL Server. It was developed jointly by Microsoft and Sybase for the OS/2 platform. 1993 – SQL Server 4.21 for Windows NT 1995 – SQL Server 6.0, codenamed SQL95 1996 – SQL Server 6.5, codenamed Hydra 1999 – SQL Server 7.0, codenamed Sphinx 1999 – SQL Server 7.0 OLAP, codenamed Plato 2000 – SQL Server 2000 32-bit, codenamed Shiloh (version 8.0) 2003 – SQL Server 2000 64-bit, codenamed Liberty 2005 – SQL Server 2005, codenamed Yukon (version 9.0) 2008 – SQL Server 2008, codenamed Katmai (version 10.0) 2010 – SQL Server 2008 R2, Codenamed Kilimanjaro (aka KJ) Next – SQL Server 2011, Codenamed Denali Any guesses what should be the next version after 2011 should be codenamed? Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Microsoft Press Weekend Deal 26/May/2012 - Microsoft® Manual of Style, 4th Edition

    - by TATWORTH
    At http://shop.oreilly.com/product/0790145305770.do?code=MSDEAL, Microsoft Press are offering the Microsoft® Manual of Style, 4th Edition as a PDF for 50% off using the MSDEAL code."Maximize the impact and precision of your message! Now in its fourth edition, the Microsoft Manual of Style provides essential guidance to content creators, journalists, technical writers, editors, and everyone else who writes about computer technology. Direct from the Editorial Style Board at Microsoft—you get a comprehensive glossary of both general technology terms and those specific to Microsoft; clear, concise usage and style guidelines with helpful examples and alternatives; guidance on grammar, tone, and voice; and best practices for writing content for the web, optimizing for accessibility, and communicating to a worldwide audience. Fully updated and optimized for ease of use, the Microsoft Manual of Style is designed to help you communicate clearly, consistently, and accurately about technical topics—across a range of audiences and media." There is a sample chapter for free download at the above link

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  • Using C# 4.0’s DynamicObject as a Stored Procedure Wrapper

    - by EltonStoneman
    [Source: http://geekswithblogs.net/EltonStoneman] Overview Ignoring the fashion, I still make a lot of use of DALs – typically when inheriting a codebase with an established database schema which is full of tried and trusted stored procedures. In the DAL a collection of base classes have all the scaffolding, so the usual pattern is to create a wrapper class for each stored procedure, giving typesafe access to parameter values and output. DAL calls then looks like instantiate wrapper-populate parameters-execute call:       using (var sp = new uspGetManagerEmployees())     {         sp.ManagerID = 16;         using (var reader = sp.Execute())         {             //map entities from the output         }     }   Or rolling it all into a fluent DAL call – which is nicer to read and implicitly disposes the resources:   This is fine, the wrapper classes are very simple to handwrite or generate. But as the codebase grows, you end up with a proliferation of very small wrapper classes: The wrappers don't add much other than encapsulating the stored procedure call and giving you typesafety for the parameters. With the dynamic extension in .NET 4.0 you have the option to build a single wrapper class, and get rid of the one-to-one stored procedure to wrapper class mapping. In the dynamic version, the call looks like this:       dynamic getUser = new DynamicSqlStoredProcedure("uspGetManagerEmployees", Database.AdventureWorks);     getUser.ManagerID = 16;       var employees = Fluently.Load<List<Employee>>()                             .With<EmployeeMap>()                             .From(getUser);   The important difference is that the ManagerId property doesn't exist in the DynamicSqlStoredProcedure class. Declaring the getUser object with the dynamic keyword allows you to dynamically add properties, and the DynamicSqlStoredProcedure class intercepts when properties are added and builds them as stored procedure parameters. When getUser.ManagerId = 16 is executed, the base class adds a parameter call (using the convention that parameter name is the property name prefixed by "@"), specifying the correct SQL Server data type (mapping it from the type of the value the property is set to), and setting the parameter value. Code Sample This is worked through in a sample project on github – Dynamic Stored Procedure Sample – which also includes a static version of the wrapper for comparison. (I'll upload this to the MSDN Code Gallery once my account has been resurrected). Points worth noting are: DynamicSP.Data – database-independent DAL that has all the data plumbing code. DynamicSP.Data.SqlServer – SQL Server DAL, thin layer on top of the generic DAL which adds SQL Server specific classes. Includes the DynamicSqlStoredProcedure base class. DynamicSqlStoredProcedure.TrySetMember. Invoked when a dynamic member is added. Assumes the property is a parameter named after the SP parameter name and infers the SqlDbType from the framework type. Adds a parameter to the internal stored procedure wrapper and sets its value. uspGetManagerEmployees – the static version of the wrapper. uspGetManagerEmployeesTest – test fixture which shows usage of the static and dynamic stored procedure wrappers. The sample uses stored procedures from the AdventureWorks database in the SQL Server 2008 Sample Databases. Discussion For this scenario, the dynamic option is very favourable. Assuming your DAL is itself wrapped by a higher layer, the stored procedure wrapper classes have very little reuse. Even if you're codegening the classes and test fixtures, it's still additional effort for very little value. The main consideration with dynamic classes is that the compiler ignores all the members you use, and evaluation only happens at runtime. In this case where scope is strictly limited that's not an issue – but you're relying on automated tests rather than the compiler to find errors, but that should just encourage better test coverage. Also you can codegen the dynamic calls at a higher level. Performance may be a consideration, as there is a first-time-use overhead when the dynamic members of an object are bound. For a single run, the dynamic wrapper took 0.2 seconds longer than the static wrapper. The framework does a good job of caching the effort though, so for 1,000 calls the dynamc version still only takes 0.2 seconds longer than the static: You don't get IntelliSense on dynamic objects, even for the declared members of the base class, and if you've been using class names as keys for configuration settings, you'll lose that option if you move to dynamics. The approach may make code more difficult to read, as you can't navigate through dynamic members, but you do still get full debugging support.     var employees = Fluently.Load<List<Employee>>()                             .With<EmployeeMap>()                             .From<uspGetManagerEmployees>                             (                                 i => i.ManagerID = 16,                                 x => x.Execute()                             );

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  • How to fix “Collection was modified; enumeration operation may not execute. “when using Copy.asmx in SharePoint2010

    - by ybbest
    Problem: In my current project, we use copy.asmx web services in SharePoint2010 to upload a document to a document library. In one of the document library, when uploading a document with a choice field, it blows up and the error message is Collection was modified; enumeration operation may not execute. Analysis: After some research , we found out the problem is that we have 2 content types that both have a field called Document Type , although the internal name are different but the display name are exactly the same and this cause the problem. I am still not too sure why, it could possibly a SharePoint bug. Solution: After rename one of the field display name to a different name, it works like a charm. You can download source code with the problem here and source code without the problem here.

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  • Console keyboard input OOP

    - by Alexandre P. Levasseur
    I am trying to build a very simple console-based game with a focus on using OOP instead of procedural programming because I intend to build up on that code for more complex projects. I am wondering if there is a design pattern that nicely handles this use case: There is a Player class with a MakeMove() method interacting with the board game. The MakeMove() method has to somehow get the user input yet I do not want to code it into the Player class as this would reduce cohesion and augment coupling. I was thinking of maybe having some controller class handle the sequence of events and thus the calls to keyboard input. However, that controller class would need to be able to handle differently the subclasses of Player (e.g. the AI class does not require keyboard input). Thoughts ?

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  • June Oracle Technology Network NEW Member Benefits - books books and more books!!!

    - by Cassandra Clark
    As we mentioned a few posts ago we are working to bring Oracle Technology Network members NEW benefits each month. Listed below are several discounts on technology books brought to you by Apress, Pearson, CRC Press and Packt Publishing. Happy reading!!! Apress Offers - Get 50% off the eBook below using promo code ORACLEJUNEJCCF. Pro ODP.NET for Oracle Database 11g By Edmund T. Zehoo This book is a comprehensive and easy-to-understand guide for using the Oracle Data Provider (ODP) version 11g on the .NET Framework. It also outlines the core GoF (Gang of Four) design patterns and coding techniques employed to build and deploy high-impact mission-critical applications using advanced Oracle database features through the ODP.NET provider. Pearson Offers - Get 35% off all titles listed below using code OTNMEMBER. SOA Design Patterns | Thomas Earl | ISBN: 0136135161 In cooperation with experts and practitioners throughout the SOA community, best-selling author Thomas Erl brings together the de facto catalog of design patterns for SOA and service-orientation. Oracle Performance Survival Guide | Guy Harrison | ISBN: 9780137011957 The fast, complete, start-to-finish guide to optimizing Oracle performance. Core JavaServer Faces, Third Edition | David Geary and Cay S. Horstmann | ISBN: 9780137012893 Provides everything you need to master the powerful and time-saving features of JSF 2.0? Solaris Security Essentials | ISBN: 9780137012336 A superb guide to deploying and managing secure computer environments.? Effective C#, Second Edition | Bill Wagner | ISBN: 9780321658708 Respected .NET expert Bill Wagner identifies fifty ways you can leverage the full power of the C# 4.0 language to express your designs concisely and clearly. CRC Press Offers - Use 813DA to get 20% off this the title below. Secure and Resilient Software Development This book illustrates all phases of the secure software development life cycle. It details quality software development strategies that stress resilience requirements with precise, actionable, and ground-level inputs. Packt Publishing Offers - Use the promo code "Java35June", to save 35% off of each eBook mentioned below. JSF 2.0 Cookbook By Anghel Leonard ISBN: 978-1-847199-52-2 Packed with fast, practical solutions and techniques for JavaServer Faces developers who want to push past the JSF basics. JavaFX 1.2 Application Development Cookbook By Vladimir Vivien ISBN: 978-1-847198-94-5 Fast, practical solutions and techniques for building powerful, responsive Rich Internet Applications in JavaFX.

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  • ODI and OBIEE 11g Integration

    - by David Allan
    Here we will see some of the connectivity options to OBIEE 11g using the JDBC driver. You’ll see based upon some connection properties how the physical or presentation layers can be utilized. In the integrators guide for OBIEE 11g you will find a brief statement indicating that there actually is a JDBC driver for OBIEE. In OBIEE 11g its now possible to connect directly to the physical layer, Venkat has an informative post here on this topic. In ODI 11g the Oracle BI technology is shipped with the product along with KMs for reverse engineering, and using OBIEE models for a data source. When you install OBIEE in 11g a light weight demonstration application is preinstalled in the server, when you open this in the BI Administration tool we see the regular 3 panel view within the administration tool. To interrogate this system via JDBC (just like ODI does using the KMs) need a couple of things; the JDBC driver from OBIEE 11g, a java client program and the credentials. In my java client program I want to connect to the OBIEE system, when I connect I can interrogate what the JDBC driver presents for the metadata. The metadata projected via the JDBC connection’s DatabaseMetadata changes depending on whether the property NQ_SESSION.SELECTPHYSICAL is set when the java client connects. Let’s use the sample app to illustrate. I have a java client program here that will print out the tables in the DatabaseMetadata, it will also output the catalog and schema. For example if I execute without any special JDBC properties as follows; java -classpath .;%BIHOMEDIR%\clients\bijdbc.jar meta_jdbc oracle.bi.jdbc.AnaJdbcDriver jdbc:oraclebi://localhost:9703/ weblogic mypass Then I get the following returned representing the presentation layer, the sample I used is XML, and has no schema; Catalog Schema Table Sample Sales Lite null Base Facts Sample Sales Lite null Calculated Facts …     Sample Targets Lite null Base Facts …     Now if I execute with the only difference being the JDBC property NQ_SESSION.SELECTPHYSICAL with the value Yes, then I see a different set of values representing the physical layer in OBIEE; java -classpath .;%BIHOMEDIR%\clients\bijdbc.jar meta_jdbc oracle.bi.jdbc.AnaJdbcDriver jdbc:oraclebi://localhost:9703/ weblogic mypass NQ_SESSION.SELECTPHYSICAL=Yes The following is returned; Catalog Schema Table Sample App Lite Data null D01 Time Day Grain Sample App Lite Data null F10 Revenue Facts (Order grain) …     System DB (Update me)     …     If this was a database system such as Oracle, the catalog value would be the OBIEE database name and the schema would be the Oracle database schema. Other systems which have real catalog structure such as SQLServer would use its catalog value. Its this ‘Catalog’ and ‘Schema’ value that is important when integration OBIEE with ODI. For the demonstration application in OBIEE 11g, the following illustration shows how the information from OBIEE is related via the JDBC driver through to ODI. In the XML example above, within ODI’s physical schema definition on the right, we leave the schema blank since the XML data source has no schema. When I did this at first, I left the default value that ODI places in the Schema field since which was ‘<Undefined>’ (like image below) but this string is actually used in the RKM so ended up not finding any tables in this schema! Entering an empty string resolved this. Below we see a regular Oracle database example that has the database, schema, physical table structure, and how this is defined in ODI.   Remember back to the physical versus presentation layer usage when we passed the special property, well to do this in ODI, the data server has a panel for properties where you can define key/value pairs. So if you want to select physical objects from the OBIEE server, then you must set this property. An additional changed in ODI 11g is the OBIEE connection pool support, this has been implemented via a ‘Connection Pool’ flex field for the Oracle BI data server. So here you set the connection pool name from the OBIEE system that you specifically want to use and this is used by the Oracle BI to Oracle (DBLINK) LKM, so if you are using this you must set this flex field. Hopefully a useful insight into some of the mechanics of how this hangs together.

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  • Web.Config is Cached

    - by SGWellens
    There was a question from a student over on the Asp.Net forums about improving site performance. The concern was that every time an app setting was read from the Web.Config file, the disk would be accessed. With many app settings and many users, it was believed performance would suffer. Their intent was to create a class to hold all the settings, instantiate it and fill it from the Web.Config file on startup. Then, all the settings would be in RAM. I knew this was not correct and didn't want to just say so without any corroboration, so I did some searching. Surprisingly, this is a common misconception. I found other code postings that cached the app settings from Web.Config. Many people even thanked the posters for the code. In a later post, the student said their text book recommended caching the Web.Config file. OK, here's the deal. The Web.Config file is already cached. You do not need to re-cache it. From this article http://msdn.microsoft.com/en-us/library/aa478432.aspx It is important to realize that the entire <appSettings> section is read, parsed, and cached the first time we retrieve a setting value. From that point forward, all requests for setting values come from an in-memory cache, so access is quite fast and doesn't incur any subsequent overhead for accessing the file or parsing the XML. The reason the misconception is prevalent may be because it's hard to search for Web.Config and cache without getting a lot of hits on how to setup caching in the Web.Config file. So here's a string for search engines to index on: "Is the Web.Config file Cached?" A follow up question was, are the connection strings cached? Yes. http://msdn.microsoft.com/en-us/library/ms178683.aspx At run time, ASP.NET uses the Web.Config files to hierarchically compute a unique collection of configuration settings for each incoming URL request. These settings are calculated only once and then cached on the server. And, as everyone should know, if you modify the Web.Config file, the web application will restart. I hope this helps people to NOT write code! Steve WellensCodeProject

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  • Web.Config is Cached

    - by SGWellens
    There was a question from a student over on the Asp.Net forums about improving site performance. The concern was that every time an app setting was read from the Web.Config file, the disk would be accessed. With many app settings and many users, it was believed performance would suffer. Their intent was to create a class to hold all the settings, instantiate it and fill it from the Web.Config file on startup. Then, all the settings would be in RAM. I knew this was not correct and didn't want to just say so without any corroboration, so I did some searching. Surprisingly, this is a common misconception. I found other code postings that cached the app settings from Web.Config. Many people even thanked the posters for the code. In a later post, the student said their text book recommended caching the Web.Config file. OK, here's the deal. The Web.Config file is already cached. You do not need to re-cache it. From this article http://msdn.microsoft.com/en-us/library/aa478432.aspx It is important to realize that the entire <appSettings> section is read, parsed, and cached the first time we retrieve a setting value. From that point forward, all requests for setting values come from an in-memory cache, so access is quite fast and doesn't incur any subsequent overhead for accessing the file or parsing the XML. The reason the misconception is prevalent may be because it's hard to search for Web.Config and cache without getting a lot of hits on how to setup caching in the Web.Config file. So here's a string for search engines to index on: "Is the Web.Config file Cached?" A follow up question was, are the connection strings cached? Yes. http://msdn.microsoft.com/en-us/library/ms178683.aspx At run time, ASP.NET uses the Web.Config files to hierarchically compute a unique collection of configuration settings for each incoming URL request. These settings are calculated only once and then cached on the server. And, as everyone should know, if you modify the Web.Config file, the web application will restart. I hope this helps people to NOT write code!   Steve WellensCodeProject

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  • Creating the “game space” for a 2D game

    - by alJaree
    How does one setup the game space for a game so that obstacles can be spawned? One example I am wondering about is doodle jump. Tile maps are limited in size and would need to change often if the user jumps a lot. How would this be done in another way than tile maps. How or what is used to create the notion of a game world where these spawned ledges/obstacles are placed as the user progresses through the stage? What is actually moving if the user jumps from ledge to ledge, what are the ledges based on in terms of the game world/space. What data structure or representation could the game use to reference and manage the spawning of these obstacles/ledges?

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  • Sam Abraham To Speak about MVC & MVVM at InterClick on May 19th

    - by Sam Abraham
    My next speaking engagement will be taking place at InterClick in Boca Raton, FL on Wednesday May 19th 2010.  Here is a quick abstract of what I will be blabbing about: MVC & MVVM are two of many buzzwords under the Architecture Spotlight as means of achieving true separation of concerns between data, business logic and UI layers. In this session, we will be discussing the basic concepts of Microsoft MVC and demonstrating the ease of creating a new MVC project and related Unit Tests within VS2010. We will then move to introduce MVVM as a design paradigm and incorporating that into an MS MVC application structure. Next, we will take a look at MVVM in the context of a sample Silverlight application. Throughout our talk we will be demonstrating various features of the latest and greatest VS2010. You can get more information about the event and the speaker, as well as register to attend at this link: http://sherstaff.com/EventSignUp.aspx?EventID=777 Look forward to seeing you all there.

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  • MAAS not working

    - by Zimika
    I'm trying a whole week to make MASS to work, but no results. This is the procedure: maas createsuperuser sudo apt-get install maas-dhcp maas-import-isos apt-get install maas-enlist tftpd-hpa maas-import-isos After this I start node machine with PXE as default first boot device, and select option maas-enlist. Sistem start to installing some things, and after that on MAAS WebUI stand 1 node. But when I click on Node button on WebUI or refresh page, it show 0 node. Command cobbler system list showing: root@maas-serv:~# cobbler system list default node-3ee116ea-a8b2-11e1-a735-50e549e38206 Also, sometime this procedure register one node, but when registering second one, same problem like I described up. root@maas-serv:/var/lib/tftpboot/pxelinux.cfg# is empty, only default is there. On command maas-import-isos there is a one warning. ftpboot/images/precise-x86_64-maas-ephemeral/initrd copying images generating GPXE/PXE configuration files generating PXE menu structure warning: kernel option length exceeds 255 warning: kernel option length exceeds 255 warning: kernel option length exceeds 255 warning: kernel option length exceeds 255 copying files for distro: precise-x86_64

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  • Simple Java networking game engine [on hold]

    - by Florian Peschka
    I want to create a simple java networking game and search a networking engine that eases use of sockets etc. I have already read some questions on here and the internet about java networking for games, but many of them were over 10 years old or not really answered. I have no idea whatsoever about what exactly I need to send in terms of messages, but I figured simple strings or integers will be enough for my purposes. It's basically a peer to peer game, so I don't need a centralized server structure. Messaging doesn't have to have an extremely low ping, yet of course all players need to have a synchronized view. What are the possibilities I have here?

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  • When should JavaScript generate HTML?

    - by VirtuosiMedia
    I try to generate as little HTML from JavaScript as possible. Instead, I prefer to manipulate existing markup whenever I can and only generate HTML when I need to dynamically insert an element that isn't a good candidate for using Ajax. This, I believe, makes it far easier to maintain the code and quickly make changes to it because the markup is easier to read and trace. My rule of thumb is: HTML is for document structure, CSS is for presentation, JavaScript is for behavior. However, I've seen a lot of JS code that generates mounds of HTML, including entire forms and content-heavy modal dialogs. In general, which method is considered best practice? In what circumstances should JavaScript be used to generate HTML and when should it not?

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  • The Winds of Change are a Blowin&rsquo;

    - by Ajarn Mark Caldwell
    For six years I have been an avid and outspoken fan and paying customer of SourceGear products…from Vault to Dragnet to Fortress and on to Vault Professional, but that is all changing now.  Not the fan part, but the paying customer part.  I’m still a huge fan.  I think that SourceGear does a great job with their product and support has been fantastic when needed (which is not very often).  I think that Eric Sink has done a fine job building a quality company and products, and I appreciate his contributions to the tech community through this blogging and books.  I still think their products are high quality and do a fantastic job of what they do.  But there’s the rub…what they do is no longer enough for me. As I have rebuilt our development team over the last couple of years, and we have begun to investigate Scrum and Kanban, I realize that I need more visibility into the progress of the team.  I need better project management tools, and this is where Vault Professional lags behind several other tools.  Granted, in the latest release (Vault 6.0) they added a nice time tracking feature, but I want more.  (Note, I did contact SourceGear about my quest for more, but apparently, the rest of their customer base has not been clamoring for this and so they have not built it.  Granted, I wasn’t clamoring for it either until just recently, but unfortunately for SourceGear, I want it now and don’t want to wait for them to build it into their system.) Ironically, it was SourceGear themselves who started to turn me on to the possibilities of other tools.  They built a limited integration with Axosoft OnTime which I read about several times on their support site (I used to regularly read and occasionally comment on their Support Forum).  I decided to check out OnTime and was very impressed with the tool for work item tracking and project management (not to mention their great Scrum Master in 10 Minutes video).  I fell in love with the capabilities of OnTime.  Unfortunately, the integration with Vault for source control management was, as I mentioned, limited.  I could have forfeited the integration between work items and source code, but there is too much benefit to linking check-ins to work items for me to give that up.  So then I did what was previously unthinkable for me, I considered switching not just the work tracking tool, but also the source code management tool.  This was really stepping outside my comfort zone because source code is Gold, and not to be trifled with.  When you find a good weapon to protect your gold, stick with it. I looked at Git and Tortoise SVN, but the integration methods for those was pretty rough compared to what I was used to.  The recommended tool from Axosoft’s point of view appeared to be RocketSVN, but I really wasn’t sure I wanted to go the “flavor of Subversion” route.  Then I started thinking about that other tool I liked back when I first chose to go with Vault, but couldn’t afford:  Team Foundation Server.  And what do you know…Microsoft has not only radically improved it over that version from back in 2006, but they also came to their senses about how it should be licensed, and it is much more affordable now.  So I started looking into the latest capabilities in the 2012 version, and I fell in love all over again. I really went deep on checking out the tools.  I watched numerous webcasts from Microsoft partners, went to a beta preview on Microsoft’s campus, and watched a lot of Channel 9 videos on the new ALM features (oooh…shiny).  Frankly, I was very impressed with the capabilities of the newest version, and figured this was probably our direction.  As an interesting twist of fate, one of my employees crossed paths with an ALM Consultant from Northwest Cadence, a local Microsoft Partner, and one of the companies that produced several of the webcasts that I had been watching.  So I gave Bryon a call and started grilling him to see if he really knew anything or was just another guy who couldn’t find a job so he called himself a consultant.  It turns out Bryon actually knows a lot, especially in an area that was becoming a frustration point for us: Branching strategies and automated builds (that’s probably a whole separate blog entry).  As we talked, Bryon suggested we look into doing a DTDPS (Developer Tools Deployment Planning Services) session with his company.  This is a service that can be paid for by Microsoft Enterprise Agreement planning services credits or SA training benefits, and, again, coincidentally, we had several that were just about to expire, so I put them to good use. The DTDPS sessions were great; and Bryon, Rick, and the rest of the folks at Northwest Cadence have been a pleasure to work with.  We have just purchased a new server for our TFS rollout and are planning the steps and options right now.  This is still a big project ahead of us to not only install and configure TFS, but also to load all of our source code (many different systems, not just one program) and transition to the new way of life with TFS, but I am convinced that it is the right move for my team at this point in time.  We need the new capabilities that are in alignment with Scrum and Kanban methodologies in order to more efficiently manage all the different projects that we have going on at one time. I would still wholeheartedly endorse SourceGear’s products and Axosoft’s OnTime for those whose needs are met by those tools, but for me and my team, I think that TFS is the right fit, and I am looking forward to the change.

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  • Programming languages, positional languages and natural languages

    - by Vitalij Zadneprovskij
    Some programming languages are modeled on machine code, like assembly languages. Other languages are modeled on a natural language, the English language. Others are not modeled on either machine code or natural language. Languages such as PROLOG, for example, don't follow either model. I came across this Perl module Lingua::Romana::Perligata, that allows to write programs using a syntax that is very similar to Latin. Are there programming languages that have less positional syntax? Are there other languages or modules that allow you to write in syntaxes inspired by other natural languages, like French, Hebrew or Farsi? There is a very long list on Wikipedia, but most of those projects are dead. There is a related question on StackOverflow. The answer that was accepted is "Use Google".

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  • Async CTP (C# 5): How to make WCF work with Async CTP

    - by javarg
    If you have recently downloaded the new Async CTP you will notice that WCF uses Async Pattern and Event based Async Pattern in order to expose asynchronous operations. In order to make your service compatible with the new Async/Await Pattern try using an extension method similar to the following: WCF Async/Await Method public static class ServiceExtensions {     public static Task<DateTime> GetDateTimeTaskAsync(this Service1Client client)     {         return Task.Factory.FromAsync<DateTime>(             client.BeginGetDateTime(null, null),             ar => client.EndGetDateTime(ar));     } } The previous code snippet adds an extension method to the GetDateTime method of the Service1Client WCF proxy. Then used it like this (remember to add the extension method’s namespace into scope in order to use it): Code Snippet var client = new Service1Client(); var dt = await client.GetDateTimeTaskAsync(); Replace the proxy’s type and operation name for the one you want to await.

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  • JPA - insert and retrieve clob and blob types

    - by pachunoori.vinay.kumar(at)oracle.com
    This article describes about the JPA feature for handling clob and blob data types.You will learn the following in this article. @Lob annotation Client code to insert and retrieve the clob/blob types End to End ADFaces application to retrieve the image from database table and display it in web page. Use Case Description Persisting and reading the image from database using JPA clob/blob type. @Lob annotation By default, TopLink JPA assumes that all persistent data can be represented as typical database data types. Use the @Lob annotation with a basic mapping to specify that a persistent property or field should be persisted as a large object to a database-supported large object type. A Lob may be either a binary or character type. TopLink JPA infers the Lob type from the type of the persistent field or property. For string and character-based types, the default is Clob. In all other cases, the default is Blob. Example Below code shows how to use this annotation to specify that persistent field picture should be persisted as a Blob. public class Person implements Serializable {    @Id    @Column(nullable = false, length = 20)    private String name;    @Column(nullable = false)    @Lob    private byte[] picture;    @Column(nullable = false, length = 20) } Client code to insert and retrieve the clob/blob types Reading a image file and inserting to Database table Below client code will read the image from a file and persist to Person table in database.                       Person p=new Person();                      p.setName("Tom");                      p.setSex("male");                      p.setPicture(writtingImage("Image location"));// - c:\images\test.jpg                       sessionEJB.persistPerson(p); //Retrieving the image from Database table and writing to a file                       List<Person> plist=sessionEJB.getPersonFindAll();//                      Person person=(Person)plist.get(0);//get a person object                      retrieveImage(person.getPicture());   //get picture retrieved from Table //Private method to create byte[] from image file  private static byte[] writtingImage(String fileLocation) {      System.out.println("file lication is"+fileLocation);     IOManager manager=new IOManager();        try {           return manager.getBytesFromFile(fileLocation);                    } catch (IOException e) {        }        return null;    } //Private method to read byte[] from database and write to a image file    private static void retrieveImage(byte[] b) {    IOManager manager=new IOManager();        try {            manager.putBytesInFile("c:\\webtest.jpg",b);        } catch (IOException e) {        }    } End to End ADFaces application to retrieve the image from database table and display it in web page. Please find the application in this link. Following are the j2ee components used in the sample application. ADFFaces(jspx page) HttpServlet Class - Will make a call to EJB and retrieve the person object from person table.Read the byte[] and write to response using Outputstream. SessionEJBBean - This is a session facade to make a local call to JPA entities JPA Entity(Person.java) - Person java class with setter and getter method annotated with @Lob representing the clob/blob types for picture field.

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