Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / LostFocusEventManager.cs / 1 / LostFocusEventManager.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Manager for the LostFocus event in the "weak event listener" // pattern. See WeakEventTable.cs for an overview. // //--------------------------------------------------------------------------- using System; using System.Windows; // WeakEventManager using MS.Internal; // Helper namespace System.Windows { ////// Manager for the DependencyObject.LostFocus event. /// public class LostFocusEventManager : WeakEventManager { #region Constructors // // Constructors // private LostFocusEventManager() { } #endregion Constructors #region Public Methods // // Public Methods // ////// Add a listener to the given source's event. /// public static void AddListener(DependencyObject source, IWeakEventListener listener) { CurrentManager.ProtectedAddListener(source, listener); } ////// Remove a listener to the given source's event. /// public static void RemoveListener(DependencyObject source, IWeakEventListener 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) { DependencyObject typedSource = (DependencyObject)source; FrameworkElement fe; FrameworkContentElement fce; Helper.DowncastToFEorFCE(typedSource, out fe, out fce, true); if (fe != null) fe.LostFocus += new RoutedEventHandler(OnLostFocus); else if (fce != null) fce.LostFocus += new RoutedEventHandler(OnLostFocus); } ////// Stop listening to the given source for the event. /// protected override void StopListening(object source) { DependencyObject typedSource = (DependencyObject)source; FrameworkElement fe; FrameworkContentElement fce; Helper.DowncastToFEorFCE(typedSource, out fe, out fce, true); if (fe != null) fe.LostFocus -= new RoutedEventHandler(OnLostFocus); else if (fce != null) fce.LostFocus -= new RoutedEventHandler(OnLostFocus); } #endregion Protected Methods #region Private Properties // // Private Properties // // get the event manager for the current thread private static LostFocusEventManager CurrentManager { get { Type managerType = typeof(LostFocusEventManager); LostFocusEventManager manager = (LostFocusEventManager)GetCurrentManager(managerType); // at first use, create and register a new manager if (manager == null) { manager = new LostFocusEventManager(); SetCurrentManager(managerType, manager); } return manager; } } #endregion Private Properties #region Private Methods // // Private Methods // // event handler for LostFocus event private void OnLostFocus(object sender, RoutedEventArgs 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. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Manager for the LostFocus event in the "weak event listener" // pattern. See WeakEventTable.cs for an overview. // //--------------------------------------------------------------------------- using System; using System.Windows; // WeakEventManager using MS.Internal; // Helper namespace System.Windows { ////// Manager for the DependencyObject.LostFocus event. /// public class LostFocusEventManager : WeakEventManager { #region Constructors // // Constructors // private LostFocusEventManager() { } #endregion Constructors #region Public Methods // // Public Methods // ////// Add a listener to the given source's event. /// public static void AddListener(DependencyObject source, IWeakEventListener listener) { CurrentManager.ProtectedAddListener(source, listener); } ////// Remove a listener to the given source's event. /// public static void RemoveListener(DependencyObject source, IWeakEventListener 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) { DependencyObject typedSource = (DependencyObject)source; FrameworkElement fe; FrameworkContentElement fce; Helper.DowncastToFEorFCE(typedSource, out fe, out fce, true); if (fe != null) fe.LostFocus += new RoutedEventHandler(OnLostFocus); else if (fce != null) fce.LostFocus += new RoutedEventHandler(OnLostFocus); } ////// Stop listening to the given source for the event. /// protected override void StopListening(object source) { DependencyObject typedSource = (DependencyObject)source; FrameworkElement fe; FrameworkContentElement fce; Helper.DowncastToFEorFCE(typedSource, out fe, out fce, true); if (fe != null) fe.LostFocus -= new RoutedEventHandler(OnLostFocus); else if (fce != null) fce.LostFocus -= new RoutedEventHandler(OnLostFocus); } #endregion Protected Methods #region Private Properties // // Private Properties // // get the event manager for the current thread private static LostFocusEventManager CurrentManager { get { Type managerType = typeof(LostFocusEventManager); LostFocusEventManager manager = (LostFocusEventManager)GetCurrentManager(managerType); // at first use, create and register a new manager if (manager == null) { manager = new LostFocusEventManager(); SetCurrentManager(managerType, manager); } return manager; } } #endregion Private Properties #region Private Methods // // Private Methods // // event handler for LostFocus event private void OnLostFocus(object sender, RoutedEventArgs 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
- ManipulationLogic.cs
- DataGridBoundColumn.cs
- ColumnHeaderConverter.cs
- InternalConfigRoot.cs
- EdmFunctions.cs
- Registry.cs
- AbsoluteQuery.cs
- FacetChecker.cs
- Formatter.cs
- ZipIOEndOfCentralDirectoryBlock.cs
- SchemaMapping.cs
- UnmanagedMemoryStream.cs
- ProfileSettingsCollection.cs
- DispatcherBuilder.cs
- SystemNetHelpers.cs
- CacheDependency.cs
- CodeValidator.cs
- WebSysDisplayNameAttribute.cs
- InputMethodStateChangeEventArgs.cs
- SqlUserDefinedTypeAttribute.cs
- SubclassTypeValidatorAttribute.cs
- _Events.cs
- ThicknessConverter.cs
- BindingParameterCollection.cs
- MarshalByRefObject.cs
- FtpCachePolicyElement.cs
- DesignerAutoFormat.cs
- CookielessData.cs
- LoginName.cs
- Decoder.cs
- TextContainerChangeEventArgs.cs
- Cloud.cs
- CodeCompileUnit.cs
- DependencyPropertyKey.cs
- CryptoApi.cs
- WinOEToolBoxItem.cs
- PropertyDescriptorCollection.cs
- EventLogInformation.cs
- UrlPath.cs
- DataServiceResponse.cs
- BitmapData.cs
- OleDbConnectionFactory.cs
- QilDataSource.cs
- CheckBoxAutomationPeer.cs
- TagPrefixInfo.cs
- AsyncInvokeOperation.cs
- ObjectToIdCache.cs
- ComponentResourceKey.cs
- DataRow.cs
- FixedSOMGroup.cs
- WsatAdminException.cs
- SimpleApplicationHost.cs
- RegisteredHiddenField.cs
- Constants.cs
- PeerResolverMode.cs
- EmissiveMaterial.cs
- __ConsoleStream.cs
- OdbcConnection.cs
- StringCollection.cs
- ObjectHandle.cs
- FormsAuthenticationModule.cs
- DataControlButton.cs
- SystemIcons.cs
- Camera.cs
- DatagridviewDisplayedBandsData.cs
- RectAnimation.cs
- PageHandlerFactory.cs
- RoutedEvent.cs
- ListViewItem.cs
- TimerElapsedEvenArgs.cs
- MenuItemStyleCollectionEditor.cs
- NonVisualControlAttribute.cs
- AppDomainGrammarProxy.cs
- UIntPtr.cs
- NativeMethods.cs
- Adorner.cs
- WindowsButton.cs
- Preprocessor.cs
- CookieProtection.cs
- DtdParser.cs
- ThumbButtonInfoCollection.cs
- DNS.cs
- TypedElement.cs
- CacheChildrenQuery.cs
- MouseDevice.cs
- CommandManager.cs
- XmlSequenceWriter.cs
- TypeConvertions.cs
- SiteMapDataSourceView.cs
- MethodAccessException.cs
- Rotation3D.cs
- InputScopeAttribute.cs
- InlineCollection.cs
- ColumnCollection.cs
- XmlNamedNodeMap.cs
- BindingCollection.cs
- DataServiceResponse.cs
- Version.cs
- ThreadStateException.cs
- FixedSOMSemanticBox.cs