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• How do I draw a gradated boarder on a polygon using GDI+ via C#/WinForms?

  - by AndyJ

  Hi, I have polygons of various shapes and sizes. They have a solid fill and currently a solid border. I would like to give the polygons a gradient on their edge to soften them. So far I've tried using a Pen with a LinearGradientBrush and whilst the effect it produces is very interesting it's most defintly not what I want ;) I've looked through the System.Drawing.Drawing2D namespace but there didnt seem to be any other classes that would be applicable for this purpose. I've had a search around and the articles that i can find are mostly about creating boarders for rectangles, which are mush easier, or are irrelivent. So to summerise, does anyone have a way of drawing a gradient boarder on a polygon using GDI+?

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• Android Template Application?

  - by stormin986

  I have built an application that I want to use as the foundation for a few other variants. The variants will come from assets / resource files and a unique AndroidManifest.xml. However, I want to be able to leave all the application code alone (modifying the package of all my classes, etc). I'm having a hard time figuring out how to do so. My first thought was to simply have my main application in its own package, and then specify the specific application package in the manifest. However, this gives me issues with the generated R.java class, since it is generated to be in the main application's package. Anyone have any thoughts on how to accomplish this? To have a code baseline, and the application variants happen in resources/assets and the manifest?

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• What is the relationship between IRimTable and PersistenceStore?

  - by Martin

  The BlackBerry Desktop API has the interface IRimTable which apparently maps an "application database" on a BlackBerry device to a virtual structure (i.e, IRimTable has IRimRecords, each of which has IRimField) that developer can browse the handheld device data when it is connected to a desktop computer. Meanwhile, applications in the handheld device can store its data in PersistenceStore databases. The point where I'm stuck is the PersistenceStore API doesn't define any Table or Records or Fields. Does anybody knows what is the relationship between these two classes? And how does the mapping work (if at all) ?

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• Programatically prevent ASP .NET AJAX scripts from rendering

  - by cbp

  Does anyone know of a way that I can stop all the .NET AJAX scripts from rendering, even if a ScriptManager exists on the page? The ScriptManager's Visible property has been overridden and disabled so that you receive a NotImplementedException if you try to set the Visible property. The reason I would like to do this is that I don't want these large chunks of javascript all over my pages when they are not required. The ScriptManager needs to be included on the master page to ensure that only one ScriptManager is added, but it would be stupid to to have to have two versions of the same master page - one ajax enabled and one not. Edit: I am actually using Telerik's RadScriptManager with RadAjax, in case anyone knows a method using these classes instead.

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• Problems with listening for an event in child object in Actionscript

  - by Raigomaru

  I have two classes. The first one (the starting class): package { import flash.display.Sprite; import flash.events.KeyboardEvent; import tetris.*; public class TetrisGame extends Sprite { private var _gameWell:Well; public function TetrisGame() { _gameWell = new Well(); addChild(_gameWell); } } } The second: package tetris { import flash.display.Sprite; import flash.events.KeyboardEvent; public class Well extends Sprite { public function Well() { super(); addEventListener(KeyboardEvent.KEY_DOWN, onKeyboard); } private function onKeyboard(event:KeyboardEvent):void { //some code is here } } } But when I press any buttons on my keyboard, the child class Well doesn't have any reaction. What's the problem?

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• Grails Runtime Exception with Audit Logging Plugin

  - by Paul

  I've deployed my app to tomcat running on EC2 via Cloud Foundry. The application uses the Grails Audit Logging Plugin I'm getting the following runtime error: Error 500: Executing action [save] of controller [com.questern.aoms.CompanyController] caused exception: groovy.lang.MissingPropertyException: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Servlet: grails URI: /aoms/grails/company/save.dispatch Exception Message: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Caused by: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent Class: CompanyController At Line: [30] The exception is: groovy.lang.MissingPropertyException: No such property: errors for class: org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent at $Proxy10.saveOrUpdate(Unknown Source) at com.questern.aoms.CompanyController$_closure4.doCall(CompanyController.groovy:30) at com.questern.aoms.CompanyController$_closure4.doCall(CompanyController.groovy) I have added the import statement to the controller CompanyController, but to no avail. import org.codehaus.groovy.grails.plugins.orm.auditable.AuditLogEvent I checked the war file and the AuditLogEvent is include in: aoms-0.1.war\WEB-INF\classes\org\codehaus\groovy\grails\plugins\orm\auditable\ Any suggestions as to what the problem could be?

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• HQL join after output of subquery

  - by user350374

  Hey, Say I have 3 classes class foo1 { List prop1;} class foo2 { foo3 prop2;} class foo3{ int Id;} now I want to select distinct foo2's from foo1 and get Id of foo3. I need to write a HQL stmt for the same. I tried the following select c.Id from (select distinct(a.prop1) from foo1.prop1 as a ) as b inner join b.prop2 as c This throws an 'Antlr.Runtime.NoViableAltException How do you suggest I should go about the same. Please note the inner subquery is working fine. So if I have made some mistakes in there please ignore that. I need a method to do the latter. Thanks in Advance.

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• How can I create a collection of references in C#

  - by Jonathan Kaufman

  Ok I am having a cross language hiccup. In C# with it's great collections like List and I have: a Map class with properties of: List<byte[]> Images; List<Tile> Tiles; a Tile Class of: byte[] ImageData; int X; int Y; Now I want to add an image to the Map class and have the ImageData property of the Tile Classes to "reference" it. I have discovered I can't just assign it Images[0]. You can't have a reference to an object of a List. My fix was to create a Dictionary. Is this the best way or can I somehow have a "pointer" to a collection of objects?

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• External resources in Flash

  - by Eric

  Hey all. I'm working on an application that was originally intended for HTML, but I've recently concluded that the best thing to do for my purposes is to do it in Flash instead. One of the big things I need is to be able to bring in movieclips from external files and add them to my main movie at runtime (dynamic number of elements, skinning, etc.) Don't need full-on code for this, but I could use some assistance in tracking down the resources to learn how to do these things successfully. Tutorials, best practices… The usual suspects. I've been using Flash for a while now, and used to do this pretty easily in AS2, but I've had some hiccups using classes and addchild in an earlier attempt, so any help would be much appreciated. Thanks!

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• Generic Any/Attach/Add function for Entity Framework

  - by Matt Thrower

  Looking through my EF classes, they're littered with code that looks like this: if (_myContext.[EntityType].Any(d => d.RowId == dc.RowId)) { _myContext.[EntityType].Attach(dc); _myContext.Entry(dc).State = EntityState.Modified; } else { _myContext.[EntityType].Add(dc); } It's the same thing over and over, and is clearly itching to be handled by a generic function. However, I'm not sure how you'd go about handling the need for it to deal with a variety of unexpected entity types. A good example to get me started would be most appreciated.

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• E4X in ActionScript

  - by Brian Genisio

  Hey all, Looking at the E4X implementation in ActionScript, it occurs to me that they had to figure out how to do three things that I am not sure can be done within ActionScript regularly: Properties/Getters prefixed with @: var myAttribute = xmlPerson.@name; Nameless functions for filtering: xmlData.person.(/* predicate */) lambda syntax for predicates: xmlData.person.(@name == "Brian") So here is my question: Are these just one-off capabilities (much like Vector.<>) they put in just for E4X, therefore keeping out of reach for us? Or do we, as ActionScript developers, have access to these features? More specifically, I'd love to get access to the expression tree of that lambda predicate for my own code (not tied to the XML classes in any way). I figured out that this is called the "filter operator"... but I am not sure how to harness it. Not sure I can... since ActionScript does not allow for operator overloading :(

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• Maven: Multiple class with the same path implemented in different jar

  - by Phuong Nguyen de ManCity fan

  I'm running into trouble with having multiple class with the same path (i.e. same name, same package!!!). For some reason, gwt-dev comes with its own version of org.apache.xerces.jaxp.DocumentBuilderFactoryImpl and javax.xml.parsers.DocumentBuilderFactory. At the same time, spring also depends on these classes but from different jar. I don't know what should be, but look like xalan & xml-api are the two dependencies that spring depends on (these dependency are optional) Funny thing is that eclipse can run the same code (it's a unit test) without problem, but surefire cannot. So I guess the problem is due to the way each runner consider the priority of each jar. Now come to the question: How can I setup my POM so that I can sure that when ever any code running inside my app, then class from a jar will be selected over class from other jar? Thanks.

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• C#: Problem trying to resolve a class when two namespaces are simmilar.

  - by rally25rs

  I'm running into an issue where I can't make a reference to a class in a different namespace. I have 2 classes: namespace Foo { public class Class1 { ... } } namespace My.App.Foo { public class Class2 { public void SomeMethod() { var x = new Foo.Class1; // compile error! } } } The compile error is: The type or namespace name 'Class1' does not exist in the namespace 'My.App.Foo' In this situation, I can't seem to get Visual Studio to recognize that "Foo.Class1" refers to the first class. If I mouse-over "Foo", it shows that its trying to resolve that to "My.App.Foo.Class1" If I put the line: using Foo; at the top of the .cs file that contains Class2, then it also resolves that to "My.App.Foo". Is there some trick to referencing the right "Foo" namespace without just renaming the namespaces so they don't conflict? Both of these namespaces are in the same assembly.

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• Declare 2 types inside using statement gives compile error?

  - by citronas

  I want to use this line of code: using (ADataContext _dc = new ADataContext(ConnectionString), BDataContext _dc2 = new BrDataContext(ConnectionString)){ // ...} This gives a compile error: Cannot use more than one type in a for, using, fixed or declartion statement. I thought this was possible? MSDN says it is: http://msdn.microsoft.com/en-us/library/yh598w02%28VS.80%29.aspx In the MSDN sample code Font is used, which is class and thereby a reference type as well as my two DataContext classes. What went wrong here? How does my attempt differ from the MSDN sample?

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• C# Socket Server

  - by Snoopy

  In .NET 3.5 a new socket classes was released: http://msdn.microsoft.com/en-us/library/bb968780.aspx i found a sample but some questions regarding best practicses are remaining: http://code.msdn.microsoft.com/nclsamples/Wiki/View.aspx?title=Socket%20Performance m_numConnections (the maximum number of connections the sample is designed to handle simultaneously) is probably equal to the amount of cpu cores i have. m_receiveBufferSize is the size for one packet? like 8kb? how should i handle a length byte? opsToPreAlloc i dont understand. is this if i code a transparent proxy? Regarding the multithreading, what should be used? The reactive extension seem to be a good choice. Has anyone tried this in a real world project? Are there better options? I had bad experiences with the .NET thread pool in the past.

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• Parsing a dynamic value with Lift-JSON

  - by Surya Suravarapu

  Let me explain this question with an example. If I have a JSON like the following: {"person1":{"name": "Name One", "address": {"street": "Some Street","city": "Some City"}}, "person2":{"name": "Name Two", "address": {"street": "Some Other Street","city": "Some Other City"}}} [There is no restriction on the number of persons, the input JSON can have many more persons] I could extract this JSON to Persons object by doing var persons = parse(res).extract[T] Here are the related case classes: case class Address(street: String, city: String) case class Person(name: String, address: Address, children: List[Child]) case class Persons(person1: Person, person2: Person) Question: The above scenario works perfectly fine. However the need is that the keys are dynamic in the key/value pairs. So in the example JSON provided, person1 and person2 could be anything, I need to read them dynamically. What's the best possible structure for Persons class to account for that dynamic nature.

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• Inject WCF proxy with credentials using StructureMap

  - by Steve Horn

  I have a service proxy generated by svcutil which generated an interface(IStudentContract) and a concrete type implementing (StudentContractClient). I'd like to have instances of StudentContractClient injected into my classes via StructureMap. My proxy also needs to have credentials supplied as seen in this passing unit test: <Test()> _ Public Sub Then_the_web_service_call_should_not_throw_an_exception() Dim studentServiceProxy As New StudentContractClient Dim credential As New NetworkCredential credential.Domain = ConfigurationManager.AppSettings("something") credential.UserName = ConfigurationManager.AppSettings("something") credential.Password = ConfigurationManager.AppSettings("something") studentServiceProxy.ClientCredentials.Windows.ClientCredential = credential Dim result = studentServiceProxy.GetCurrentTeachersByStudentSepid(26899) result.Count.ShouldEqual(4) End Sub My question is what would the structuremap configuration look like to have instances of IStudentContract injected with the credentials supplied? Thanks for any help!

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• JAVA Inheritance Generics and Casting.

  - by James Moore

  Hello, I have two classes which both extends Example. public class ClassA extends Example { public ClassA() { super("a", "class"); } .... } public class ClassB extends Example { public ClassB() { super("b", "class"); } .... } public class Example () { public String get(String x, String y) { return "Hello"; } } So thats all very well. So suppose we have another class called ExampleManager. With example manager I want to use a generic type and consequently return that generic type. e.g. public class ExampleManager<T extends Example> { public T getExample() { return new T("example","example"); // So what exactly goes here? } } So where I am returning my generic type how do i get this to actually work correctly and cast Example as either classA or classB? Many Thanks

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• TTPhotoViewController thumbnails rotate but images don't

  - by Koray Balci

  I have PhotoTest1Controller very similiar to the one in Three20 samples. I implemented necessary shouldRotate methods in necessary places in UITabBarController and UINavController derived classes as well as the table that contains PhotoTest1Controller. A funny thing is happening, when in thumbnail mode, the view rotates properly, but when showing a picture it does not respond to rotation. Moreover, If I rotate in thumbnail view and then switch to single image view in that rotation, I find that the image is properly rotated in the background. It only ignores rotation when it is the topmost view! So, my understanding is that shouldRotate events are properly propagated, but for some reason single image view does not rotate when in top view, unlike the example code which is %98 equal to my code...

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• Problem with Autowiring & No unique bean

  - by mada

  I have 2 classes (B,C) extends class A. @Service public class A extends AbstratClass<Modele>{ @Autowired A(MyClass br) { super(br); } @Service public class B extends A{ @Autowired B (MyClass br) { super(br); } @Service public class C extends A{ @Autowired C (MyClass br) { super(br); } But i have this message: No unique bean of type [A] ] is defined: expected single matching bean but found 2: [A, B, moveModeleMarshaller] I really cant get why i have this message & how to resolve even after reading Spring documentation. Thanks in advance.

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• .NET generic class instance - passing a variable data type

  - by FerretallicA

  As the title suggests, I'm tyring to pass a variable data type to a template class. Something like this: frmExample = New LookupForm(Of Models.MyClass) 'Works fine Dim SelectedType As Type = InstanceOfMyClass.GetType() 'Works fine frmExample = New LookupForm(Of SelectedType) 'Ba-bow! frmExample = New LookupForm(Of InstanceOfMyClass.GetType()) 'Ba-bow! LookupForm<Models.MyClass> frmExample; Type SelectedType = InstanceOfMyClass.GetType(); frmExample = new LookupForm<SelectedType.GetType()>(); //Ba-bow frmExample = new LookupForm<(Type)SelectedType>(); //Ba-bow I'm assuming it's something to do with the template being processed at compile time but even if I'm off the mark there, it wouldn't solve my problem anyway. I can't find any relevant information on using Reflection to instance template classes either. (How) can I create an instance of a dynamically typed repository at runtime?

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• Best place to check user authenticity in a back end module where all pages are only available to mem

  - by understack

  I've a backend module which could only be accessed by only authorized members. So I need to check authenticity for all actions and for all controllers. Currently I'm doing it inside preDispatch() functions inside controller classes. So it takes care of all the actions inside that controller. But still I've to do it for all controllers. Is there a place I could check it for all the controllers as well. So basically I want one place authenticity check for whole backend module. Can I do it in bootstrap?

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• How do you access config outside of a request in CherryPy?

  - by OrganicPanda

  I've got a webapp running on CherryPy that needs to access the CherryPy config files before a user creates a request. The docs say to use: host = cherrypy.request.app.config['database']['host'] But that won't work outside of a user request. You can also use the application object when you start the app like so: ... application = cherrypy.tree.mount(root, '/', app_conf) host = application.config['database']['host'] ... But I can see no way of accessing 'application' from other classes outside of a user request. I ask because our app looks at several databases and we set them up when the app starts rather than on user request. I have a feeling this would be useful in other places too; so is there any way to store a reference to 'application' somewhere or access it through the CherryPy API?

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• Copying a Polymorphic object in C++

  - by doron

  I have base-class Base from which is derived Derived1, Derived2 and Derived3. I have constructed an instance for one of the the derived classes which I store as Base* a. I now need to make a deep copy of the object which I will store as Base* b. As far as I know, the normal way of copying a class is to use copy constructors and to overload operator=. However since I don't know whether a is of type Derived1, Derived2 or Derived3, I cannot think of a way of using either the copy constructor or operator=. The only way I can think of to cleanly make this work is to implement something like: class Base { public: virtual Base* Clone() = 0; }; and the implement Clone in in the derived class as in: class Derivedn : public Base { public: Base* Clone() { Derived1* ret = new Derived1; copy all the data members } }; Java tends to use Clone quite a bit is there more of a C++ way of doing this?

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• asp.mvc model design

  - by Radu D

  Hi, I am pretty new to MVC and I am looking for a way to design my models. I have the MVC web site project and another class library that takes care of data access and constructing the business objects. If I have in that assembly a class named Project that is a business object and I need to display all projects in a view ... should I make another model class Project? In this case the classes will be identical. Do I gain something from doing a new model class? I don't like having in views references to objects from another dll ... but i don't like duplicating the code neither. Did you encounter the same problem?

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