dispose

问题 I want to trigger a task to run on a background thread. I don't want to wait on the tasks completion. In .net 3.5 I would have done this: ThreadPool.QueueUserWorkItem(d => { DoSomething(); }); In .net 4 the TPL is the suggested way. The common pattern I have seen recommended is: Task.Factory.StartNew(() => { DoSomething(); }); However, the StartNew() method returns a Task object which implements IDisposable . This seems to be overlooked by people who recommend this pattern. The MSDN

问题 This question already has answers here : What is IDisposable for? (6 answers) Closed last year . From the MSDN docs on list.Clear() Count is set to 0, and references to other objects from elements of the collection are also released. From what I've been taught (which could be wrong), disposed & released are different things. Disposed means the items is completely removed from memory, released means it's simply not bound to that list by pointer. Does that mean that I need to do foreach (var

问题 I'm using NetBeans. My JFrame has as default close operation: EXIT_ON_CLOSE . I have a button that is supposed to close the program on this JFrame , this is the action performed code: private void bSalirActionPerformed(java.awt.event.ActionEvent evt){ this.dispose(); } I thought this would close all the JFrame s of the program but it doesn't, could you explain me why or how to fix it? 回答1: If you want to exit your application with the button than you can use System.exit() or frame.dispose() .

问题 How to implement the Dispose(boolean) at a UserControl... when the VS Designer already implemented it with a DebuggerNonUserCode attribute? Will my modifications on this method removed? (code from UserControl.Designer.vb) <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) 回答1: You need to remove the Dispose method from the designer file and add it to your source file. You should probably also remove the DebuggerNonUserCode attribute. At

问题 This question already has answers here : Understanding garbage collection in .NET (3 answers) Closed 4 years ago . I have the following class. public class Foo { private string _DirName; private FileStream _MyfileStream; public FileStream MyfileStream { get { return _MyfileStream; } } public string DirName { get { return _DirName; } set { _DirName = value; _MyfileStream = new FileStream(value, FileMode.Create); } } } I have Created a List Of Foo as like the following: List<Foo> FooList = new

问题 Is it possible to test if a WebBrowser.Document has been disposed so that I don't keep getting ObjectDisposedException's? I know the following code will do the job, but I'd prefer to test for the Document being disposed rather than having to catch it. Any thoughts? private Size GetContentSize() { try { if ( this.webBrowser.Document != null && this.webBrowser.Document.Body != null) { return this.webBrowser.Document.Body.ScrollRectangle.Size; } else { return Size.Empty; } } catch

问题 Which one is the right one? This one: protected override void Dispose(bool disposing) { if (disposing && (components != null)) { this.ctlRBContent1_GetBuildName -= _ctlBottom.GetBuildName; components.Dispose(); } base.Dispose(disposing); } OR This one: ~ ctlRemoteBuildContent1() { this.ctlRBContent1_GetBuildName -= _ctlBottom.GetBuildName; } I tried to toggle this 2 functions. When I did UserControl disposing, it didn't jump into the toggle line :/ 回答1: If you clean up in a destructor, there

问题 I am currently developing some desktop applications using websockets (to be more precisely: i am working with Alchemy WebSockets). By now my code is working fine, but Visual Studio 2010 tells me to Warning 2 CA2000 : Microsoft.Reliability : In method 'ServerController.SetupServer(int)', call System.IDisposable.Dispose on object '<>g__initLocal0' before all references to it are out of scope. C:\Users\MaRiedl\documents\visual studio 2010\Projects\Alchemy-WebSockets\AWS-Server\ServerController

问题 I am using the libgdx AssetManager to load a skin with a custom font. When I call assetmanager.dispose() it throws an Exception: com.badlogic.gdx.utils.GdxRuntimeException: Pixmap already disposed! at com.badlogic.gdx.graphics.Pixmap.dispose(Pixmap.java:315) at com.badlogic.gdx.graphics.g2d.PixmapPacker$Page$1.dispose(PixmapPacker.java:384) at com.badlogic.gdx.graphics.g2d.BitmapFont.dispose(BitmapFont.java:315) at com.badlogic.gdx.scenes.scene2d.ui.Skin.dispose(Skin.java:416) at com.badlogic

问题 Initializing an IndexWriter in Lucene.Net looks like this: var analyzer = new Lucene.Net.Analysis.Standard.StandardAnalyzer(version); var indexWriterConfig = new Lucene.Net.Index.IndexWriterConfig(version, analyzer); Index = new Lucene.Net.Index.IndexWriter(luceneDir, indexWriterConfig); That is, you can't instantiate an IndexWriter without an Analyzer. So, I would expect that calling .Dispose() on the IndexWriter would dispose its children, including the Analyzer. However browsing the code I