Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / ApplicationContext.cs / 1305376 / ApplicationContext.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Windows.Forms { using System; using System.Diagnostics; using System.ComponentModel; ////// /// ApplicationContext provides contextual information about an application /// thread. Specifically this allows an application author to redifine what /// circurmstances cause a message loop to exit. By default the application /// context listens to the close event on the mainForm, then exits the /// thread's message loop. /// public class ApplicationContext : IDisposable { Form mainForm; object userData; ////// /// Creates a new ApplicationContext with no mainForm. /// public ApplicationContext() : this(null) { } ////// /// Creates a new ApplicationContext with the specified mainForm. /// If OnMainFormClosed is not overriden, the thread's message /// loop will be terminated when mainForm is closed. /// public ApplicationContext(Form mainForm) { this.MainForm = mainForm; } ///~ApplicationContext() { Dispose(false); } /// /// /// Determines the mainForm for this context. This may be changed /// at anytime. /// If OnMainFormClosed is not overriden, the thread's message /// loop will be terminated when mainForm is closed. /// public Form MainForm { get { return mainForm; } set { EventHandler onClose = new EventHandler(OnMainFormDestroy); if (mainForm != null) { mainForm.HandleDestroyed -= onClose; } mainForm = value; if (mainForm != null) { mainForm.HandleDestroyed += onClose; } } } ///[ SRCategory(SR.CatData), Localizable(false), Bindable(true), SRDescription(SR.ControlTagDescr), DefaultValue(null), TypeConverter(typeof(StringConverter)), ] public object Tag { get { return userData; } set { userData = value; } } /// /// /// Is raised when the thread's message loop should be terminated. /// This is raised by calling ExitThread. /// public event EventHandler ThreadExit; ////// /// Disposes the context. This should dispose the mainForm. This is /// called immediately after the thread's message loop is terminated. /// Application will dispose all forms on this thread by default. /// public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } ///protected virtual void Dispose(bool disposing) { if (disposing) { if (mainForm != null) { if (!mainForm.IsDisposed) { mainForm.Dispose(); } mainForm = null; } } } /// /// /// Causes the thread's message loop to be terminated. This /// will call ExitThreadCore. /// public void ExitThread() { ExitThreadCore(); } ////// /// Causes the thread's message loop to be terminated. /// protected virtual void ExitThreadCore() { if (ThreadExit != null) { ThreadExit(this, EventArgs.Empty); } } ////// /// Called when the mainForm is closed. The default implementation /// of this will call ExitThreadCore. /// protected virtual void OnMainFormClosed(object sender, EventArgs e) { ExitThreadCore(); } ////// Called when the mainForm is closed. The default implementation /// of this will call ExitThreadCore. /// private void OnMainFormDestroy(object sender, EventArgs e) { Form form = (Form)sender; if (!form.RecreatingHandle) { form.HandleDestroyed -= new EventHandler(OnMainFormDestroy); OnMainFormClosed(sender, e); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RegexParser.cs
- ExceptionWrapper.cs
- DesignTimeResourceProviderFactoryAttribute.cs
- EventLog.cs
- DataGridViewRowsAddedEventArgs.cs
- XmlAggregates.cs
- AlternationConverter.cs
- ResourceAttributes.cs
- Input.cs
- GlyphRunDrawing.cs
- CaseInsensitiveOrdinalStringComparer.cs
- SqlDataSourceCache.cs
- XmlAnyAttributeAttribute.cs
- HandlerFactoryWrapper.cs
- AsymmetricKeyExchangeFormatter.cs
- XmlReaderSettings.cs
- BulletedListEventArgs.cs
- MediaContext.cs
- WorkflowStateRollbackService.cs
- PointLightBase.cs
- Polyline.cs
- elementinformation.cs
- ServiceBusyException.cs
- BinaryConverter.cs
- TextElementEditingBehaviorAttribute.cs
- StreamingContext.cs
- UInt16.cs
- PlatformCulture.cs
- InheritedPropertyChangedEventArgs.cs
- UserControlAutomationPeer.cs
- WCFBuildProvider.cs
- CodeDomDecompiler.cs
- NameScopePropertyAttribute.cs
- ParallelLoopState.cs
- Properties.cs
- DbExpressionRules.cs
- DynamicControlParameter.cs
- String.cs
- XmlTypeMapping.cs
- XomlCompilerParameters.cs
- FontConverter.cs
- SmtpSection.cs
- SourceFilter.cs
- LineBreak.cs
- AppLevelCompilationSectionCache.cs
- ResolvedKeyFrameEntry.cs
- FunctionCommandText.cs
- TemplatePagerField.cs
- ImageButton.cs
- DeviceContexts.cs
- Pool.cs
- ConfigurationElement.cs
- ListBindingConverter.cs
- ConcurrentDictionary.cs
- XmlHierarchicalDataSourceView.cs
- ContentType.cs
- ConnectionInterfaceCollection.cs
- Win32Native.cs
- OperatorExpressions.cs
- WorkflowRuntimeSection.cs
- Char.cs
- OleCmdHelper.cs
- DateTimeConstantAttribute.cs
- ThreadPool.cs
- ModelToObjectValueConverter.cs
- DictionarySurrogate.cs
- ObjectStateEntryDbUpdatableDataRecord.cs
- DataBindingHandlerAttribute.cs
- DNS.cs
- ConfigurationManagerHelperFactory.cs
- MimeParameter.cs
- RectangleF.cs
- BitmapMetadataEnumerator.cs
- ParagraphVisual.cs
- HashJoinQueryOperatorEnumerator.cs
- ComponentEvent.cs
- XamlTreeBuilder.cs
- StdValidatorsAndConverters.cs
- _SSPIWrapper.cs
- DataRow.cs
- CryptoConfig.cs
- OdbcUtils.cs
- DoubleLinkList.cs
- RegistrySecurity.cs
- CellParaClient.cs
- ToolStripItemTextRenderEventArgs.cs
- PropertyGroupDescription.cs
- PolyQuadraticBezierSegment.cs
- TextEditor.cs
- SHA512Managed.cs
- WindowsComboBox.cs
- WorkerRequest.cs
- IpcPort.cs
- unsafenativemethodsother.cs
- _NegoState.cs
- ResetableIterator.cs
- DisplayMemberTemplateSelector.cs
- HandlerBase.cs
- SqlNodeAnnotation.cs
- CollectionCodeDomSerializer.cs