Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / Collections / Specialized / CollectionChangedEventManager.cs / 1305600 / CollectionChangedEventManager.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Manager for the CollectionChanged event in the "weak event listener" // pattern. See WeakEventTable.cs for an overview. // //--------------------------------------------------------------------------- using System; using System.Windows; // WeakEventManager namespace System.Collections.Specialized { ////// Manager for the INotifyCollectionChanged.CollectionChanged event. /// public class CollectionChangedEventManager : WeakEventManager { #region Constructors // // Constructors // private CollectionChangedEventManager() { } #endregion Constructors #region Public Methods // // Public Methods // ////// Add a listener to the given source's event. /// public static void AddListener(INotifyCollectionChanged source, IWeakEventListener listener) { if (source == null) throw new ArgumentNullException("source"); if (listener == null) throw new ArgumentNullException("listener"); CurrentManager.ProtectedAddListener(source, listener); } ////// Remove a listener to the given source's event. /// public static void RemoveListener(INotifyCollectionChanged source, IWeakEventListener listener) { /* for app-compat, allow RemoveListener(null, x) - it's a no-op (see Dev10 796788) if (source == null) throw new ArgumentNullException("source"); */ if (listener == null) throw new ArgumentNullException("listener"); CurrentManager.ProtectedRemoveListener(source, listener); } #endregion Public Methods #region Protected Methods // // Protected Methods // ////// Listen to the given source for the event. /// protected override void StartListening(object source) { INotifyCollectionChanged typedSource = (INotifyCollectionChanged)source; typedSource.CollectionChanged += new NotifyCollectionChangedEventHandler(OnCollectionChanged); } ////// Stop listening to the given source for the event. /// protected override void StopListening(object source) { INotifyCollectionChanged typedSource = (INotifyCollectionChanged)source; typedSource.CollectionChanged -= new NotifyCollectionChangedEventHandler(OnCollectionChanged); } #endregion Protected Methods #region Private Properties // // Private Properties // // get the event manager for the current thread private static CollectionChangedEventManager CurrentManager { get { Type managerType = typeof(CollectionChangedEventManager); CollectionChangedEventManager manager = (CollectionChangedEventManager)GetCurrentManager(managerType); // at first use, create and register a new manager if (manager == null) { manager = new CollectionChangedEventManager(); SetCurrentManager(managerType, manager); } return manager; } } #endregion Private Properties #region Private Methods // // Private Methods // // event handler for CollectionChanged event private void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs args) { DeliverEvent(sender, args); } #endregion Private Methods } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SendActivityDesignerTheme.cs
- FormViewCommandEventArgs.cs
- ShaderRenderModeValidation.cs
- ClipboardData.cs
- WebPartDisplayModeCollection.cs
- BaseAddressPrefixFilterElement.cs
- ExpressionNormalizer.cs
- DBDataPermission.cs
- Compensation.cs
- SessionStateModule.cs
- InputQueue.cs
- PkcsMisc.cs
- Triangle.cs
- StringSorter.cs
- TimeStampChecker.cs
- DeclarationUpdate.cs
- TraceContext.cs
- SoapObjectInfo.cs
- DataGridViewRowStateChangedEventArgs.cs
- SystemInformation.cs
- PageSettings.cs
- SerTrace.cs
- FolderBrowserDialog.cs
- Point4D.cs
- RemoveStoryboard.cs
- RecognizedAudio.cs
- XmlLanguageConverter.cs
- ServiceHostingEnvironment.cs
- XmlDataSource.cs
- GridViewRowCollection.cs
- EventLogPermissionEntry.cs
- OraclePermission.cs
- WorkflowInstanceTerminatedRecord.cs
- DebugView.cs
- DesignerProperties.cs
- Converter.cs
- XmlCharCheckingWriter.cs
- SettingsProviderCollection.cs
- ClientTargetSection.cs
- Parser.cs
- FormsIdentity.cs
- ControlHelper.cs
- GACIdentityPermission.cs
- StylusPointPropertyId.cs
- ExpressionLexer.cs
- BitmapEffectGroup.cs
- DesignerSerializerAttribute.cs
- IdentityHolder.cs
- oledbconnectionstring.cs
- SqlDataSourceStatusEventArgs.cs
- ConnectAlgorithms.cs
- SelectionRangeConverter.cs
- DebuggerService.cs
- HandleCollector.cs
- CustomErrorsSection.cs
- CompilerTypeWithParams.cs
- OleTxTransactionInfo.cs
- EventSetter.cs
- XmlTextReaderImplHelpers.cs
- IndependentAnimationStorage.cs
- Material.cs
- ValueChangedEventManager.cs
- WorkflowServiceAttributes.cs
- CannotUnloadAppDomainException.cs
- SystemIPv4InterfaceProperties.cs
- NewArrayExpression.cs
- QilXmlWriter.cs
- UnsafeNativeMethodsPenimc.cs
- WinEventWrap.cs
- ClientApiGenerator.cs
- DataGridItemCollection.cs
- ContextBase.cs
- DesignTimeTemplateParser.cs
- QilFunction.cs
- ProfileSettings.cs
- HtmlFormAdapter.cs
- DynamicPropertyReader.cs
- InfoCardCryptoHelper.cs
- CurrencyWrapper.cs
- mda.cs
- EDesignUtil.cs
- Int32Rect.cs
- AmbientValueAttribute.cs
- MergePropertyDescriptor.cs
- XPathParser.cs
- SimpleApplicationHost.cs
- FilteredXmlReader.cs
- DesignerActionUI.cs
- EntityDataSourceViewSchema.cs
- SourceElementsCollection.cs
- StreamAsIStream.cs
- BuiltInPermissionSets.cs
- GroupBoxDesigner.cs
- ByteStorage.cs
- SqlCacheDependencyDatabase.cs
- ObjectStateFormatter.cs
- Int32Converter.cs
- EntityDataSourceWizardForm.cs
- AttachedPropertyBrowsableForChildrenAttribute.cs
- ToolStripDropDownItem.cs