Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / DataObjectEventArgs.cs / 1 / DataObjectEventArgs.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Base class for DataObject events arguments // //--------------------------------------------------------------------------- using System; namespace System.Windows { ////// Base class for DataObject.Copying/Pasting events. /// These events are raised when an editor deals with /// a data object before putting it to clipboard on copy /// and before starting drag operation; /// or before Pasting its content into a selection /// on Paste/Drop operations. /// /// This class is abstract - it provides only common /// members for the events. Particular commands /// must use more specific event arguments - /// DataObjectCopyingEventArgs or DataObjectPastingEventArgs. /// public abstract class DataObjectEventArgs : RoutedEventArgs { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates a DataObjectCopyEvent. /// This object created by editors executing a Copy/Paste /// and Drag/Drop comands. /// /// /// An event id. One of: CopyingEvent or PastingEvent /// /// /// A flag indicating if this operation is part of drag/drop. /// Copying event fired on drag start, Pasting - on drop. /// Cancelling the command stops drag/drop process in /// an appropriate moment. /// internal DataObjectEventArgs(RoutedEvent routedEvent, bool isDragDrop) : base() { if (routedEvent != DataObject.CopyingEvent && routedEvent != DataObject.PastingEvent && routedEvent != DataObject.SettingDataEvent) { throw new ArgumentOutOfRangeException("routedEvent"); } RoutedEvent = routedEvent; _isDragDrop = isDragDrop; _commandCancelled = false; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ////// A flag indicating if this operation is part of drag/drop. /// Copying event fired on drag start, Pasting - on drop. /// Cancelling the command stops drag/drop process in /// an appropriate moment. /// public bool IsDragDrop { get { return _isDragDrop; } } ////// A current cancellation status of the event. /// When set to true, copy command is going to be cancelled. /// public bool CommandCancelled { get { return _commandCancelled; } } #endregion Public Properties //------------------------------------------------------ // // Protected Methods // //------------------------------------------------------ #region Public Methods ////// Sets cancelled status of a command to true. /// After calling this method the command will be /// stopped from calling. /// Applied to Drag (event="Copying", isDragDrop="true") /// this would stop the whole dragdrop process. /// ////// After an event has been cancelled it's impossible /// to re-enable it. /// public void CancelCommand() { _commandCancelled = true; } #endregion Public Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private bool _isDragDrop; private bool _commandCancelled; #endregion Private Fields } } // 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
- DataServiceHost.cs
- CategoryAttribute.cs
- PropertyConverter.cs
- PerformanceCounterLib.cs
- VersionedStreamOwner.cs
- VectorConverter.cs
- GeneralTransformGroup.cs
- AppDomainUnloadedException.cs
- XpsS0ValidatingLoader.cs
- SecUtil.cs
- ConsumerConnectionPoint.cs
- PriorityBindingExpression.cs
- GlyphInfoList.cs
- EntityProviderServices.cs
- NavigatorOutput.cs
- XPathDocumentBuilder.cs
- DiscreteKeyFrames.cs
- ResourceContainer.cs
- FlowDocumentPageViewerAutomationPeer.cs
- TreeWalker.cs
- SiteMapDataSource.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- ValueExpressions.cs
- SessionEndingEventArgs.cs
- DialogResultConverter.cs
- EventlogProvider.cs
- XmlDocumentSurrogate.cs
- DataBindEngine.cs
- NativeMethods.cs
- ApplicationInterop.cs
- ParamArrayAttribute.cs
- unsafeIndexingFilterStream.cs
- Container.cs
- CursorConverter.cs
- ActivationServices.cs
- Utils.cs
- XmlSchemaCollection.cs
- DesignerVerb.cs
- SqlEnums.cs
- MouseGestureValueSerializer.cs
- TrackBar.cs
- MaterialGroup.cs
- CompareValidator.cs
- AsyncInvokeContext.cs
- IdentityNotMappedException.cs
- AuthenticationManager.cs
- ExpressionParser.cs
- DataColumn.cs
- MediaTimeline.cs
- bidPrivateBase.cs
- prompt.cs
- ColumnResizeAdorner.cs
- HMACSHA1.cs
- SqlCacheDependency.cs
- BitmapEffectDrawingContextWalker.cs
- WindowsGraphicsCacheManager.cs
- KeyMatchBuilder.cs
- ColorConvertedBitmapExtension.cs
- RIPEMD160Managed.cs
- ResolvedKeyFrameEntry.cs
- SafeCancelMibChangeNotify.cs
- FastPropertyAccessor.cs
- ChildChangedEventArgs.cs
- SuppressIldasmAttribute.cs
- DataMember.cs
- SymLanguageType.cs
- PriorityBindingExpression.cs
- MissingFieldException.cs
- BreakRecordTable.cs
- ResourceReader.cs
- VirtualizedItemPattern.cs
- DropDownList.cs
- UpdatePanel.cs
- EmitterCache.cs
- Line.cs
- DataServiceProviderMethods.cs
- Function.cs
- ReaderWriterLock.cs
- MetadataArtifactLoader.cs
- LocationSectionRecord.cs
- SqlDataSourceQueryEditorForm.cs
- IgnoreSectionHandler.cs
- ListDictionary.cs
- TextChangedEventArgs.cs
- LocalizationComments.cs
- ParseNumbers.cs
- COM2PictureConverter.cs
- ElementNotAvailableException.cs
- PropertyBuilder.cs
- DockingAttribute.cs
- UnsafeNativeMethods.cs
- FusionWrap.cs
- DataContractSerializerSection.cs
- FixedDocumentSequencePaginator.cs
- PolyBezierSegment.cs
- NullableConverter.cs
- XmlTextReaderImpl.cs
- TreeNode.cs
- QilFunction.cs
- DependencyPropertyKey.cs