Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Core / CSharp / System / Windows / DataObjectSettingDataEventArgs.cs / 1 / DataObjectSettingDataEventArgs.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: DataObjectSettingData event arguments // //--------------------------------------------------------------------------- using System; namespace System.Windows { ////// Arguments for the DataObject.SettingData event. /// The DataObject.SettingData event is raised during /// Copy (or Drag start) command when an editor /// is going to start data conversion for some /// of data formats. By handling this event an application /// can prevent from editon doing that thus making /// Copy performance better. /// public sealed class DataObjectSettingDataEventArgs : DataObjectEventArgs { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates a DataObjectSettingDataEventArgs. /// /// /// DataObject to which a new data format is going to be added. /// /// /// Format which is going to be added to the DataObject. /// public DataObjectSettingDataEventArgs(IDataObject dataObject, string format) // : base(System.Windows.DataObject.SettingDataEvent, /*isDragDrop:*/false) { if (dataObject == null) { throw new ArgumentNullException("dataObject"); } if (format == null) { throw new ArgumentNullException("format"); } _dataObject = dataObject; _format = format; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ////// DataObject to which a new data format is going to be added. /// public IDataObject DataObject { get { return _dataObject; } } ////// Format which is going to be added to the DataObject. /// public string Format { get { return _format; } } #endregion Public Properties #region Protected Methods //------------------------------------------------------ // // Protected Methods // //------------------------------------------------------ ////// The mechanism used to call the type-specific handler on the target. /// /// /// The generic handler to call in a type-specific way. /// /// /// The target to call the handler on. /// protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget) { DataObjectSettingDataEventHandler handler = (DataObjectSettingDataEventHandler)genericHandler; handler(genericTarget, this); } #endregion Protected Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private IDataObject _dataObject; private string _format; #endregion Private Fields } ////// The delegate to use for handlers that receive the DataObject.QueryingCopy/QueryingPaste events. /// ////// A handler for a DataObject.SettingData event. /// Te event is fired as part of Copy (or Drag) command /// once for each of data formats added to a DataObject. /// The purpose of this handler is mostly copy command /// optimization. With the help of it application /// can filter some formats from being added to DataObject. /// The other opportunity of doing that exists in /// DataObject.Copying event, which could set all undesirable /// formats to null, but in this case the work for data /// conversion is already done, which may be too expensive. /// By handling DataObject.SettingData event an application /// can prevent from each particular data format conversion. /// By calling DataObjectSettingDataEventArgs.CancelCommand /// method the handler tells an editor to skip one particular /// data format (identified by DataObjectSettingDataEventArgs.Format /// property). Note that calling CancelCommand method /// for this event does not cancel the whole Copy or Drag /// command. /// public delegate void DataObjectSettingDataEventHandler(object sender, DataObjectSettingDataEventArgs e); } // 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: DataObjectSettingData event arguments // //--------------------------------------------------------------------------- using System; namespace System.Windows { ////// Arguments for the DataObject.SettingData event. /// The DataObject.SettingData event is raised during /// Copy (or Drag start) command when an editor /// is going to start data conversion for some /// of data formats. By handling this event an application /// can prevent from editon doing that thus making /// Copy performance better. /// public sealed class DataObjectSettingDataEventArgs : DataObjectEventArgs { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates a DataObjectSettingDataEventArgs. /// /// /// DataObject to which a new data format is going to be added. /// /// /// Format which is going to be added to the DataObject. /// public DataObjectSettingDataEventArgs(IDataObject dataObject, string format) // : base(System.Windows.DataObject.SettingDataEvent, /*isDragDrop:*/false) { if (dataObject == null) { throw new ArgumentNullException("dataObject"); } if (format == null) { throw new ArgumentNullException("format"); } _dataObject = dataObject; _format = format; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ////// DataObject to which a new data format is going to be added. /// public IDataObject DataObject { get { return _dataObject; } } ////// Format which is going to be added to the DataObject. /// public string Format { get { return _format; } } #endregion Public Properties #region Protected Methods //------------------------------------------------------ // // Protected Methods // //------------------------------------------------------ ////// The mechanism used to call the type-specific handler on the target. /// /// /// The generic handler to call in a type-specific way. /// /// /// The target to call the handler on. /// protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget) { DataObjectSettingDataEventHandler handler = (DataObjectSettingDataEventHandler)genericHandler; handler(genericTarget, this); } #endregion Protected Methods //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private IDataObject _dataObject; private string _format; #endregion Private Fields } ////// The delegate to use for handlers that receive the DataObject.QueryingCopy/QueryingPaste events. /// ////// A handler for a DataObject.SettingData event. /// Te event is fired as part of Copy (or Drag) command /// once for each of data formats added to a DataObject. /// The purpose of this handler is mostly copy command /// optimization. With the help of it application /// can filter some formats from being added to DataObject. /// The other opportunity of doing that exists in /// DataObject.Copying event, which could set all undesirable /// formats to null, but in this case the work for data /// conversion is already done, which may be too expensive. /// By handling DataObject.SettingData event an application /// can prevent from each particular data format conversion. /// By calling DataObjectSettingDataEventArgs.CancelCommand /// method the handler tells an editor to skip one particular /// data format (identified by DataObjectSettingDataEventArgs.Format /// property). Note that calling CancelCommand method /// for this event does not cancel the whole Copy or Drag /// command. /// public delegate void DataObjectSettingDataEventHandler(object sender, DataObjectSettingDataEventArgs e); } // 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
- RegexRunnerFactory.cs
- HttpAsyncResult.cs
- cache.cs
- SHA384Managed.cs
- InitializerFacet.cs
- ConstraintEnumerator.cs
- WebHttpDispatchOperationSelector.cs
- CodeDelegateCreateExpression.cs
- ADRoleFactory.cs
- SafeLibraryHandle.cs
- OrCondition.cs
- CompositeFontInfo.cs
- Normalization.cs
- NamespaceEmitter.cs
- ByteStream.cs
- SQLBoolean.cs
- TextAction.cs
- WebPartMovingEventArgs.cs
- PointCollection.cs
- WebPartConnectionsEventArgs.cs
- MetadataSource.cs
- LogicalExpr.cs
- XmlSerializerFactory.cs
- BuildDependencySet.cs
- CapabilitiesPattern.cs
- VectorConverter.cs
- OptimalBreakSession.cs
- VectorAnimationUsingKeyFrames.cs
- XsdDuration.cs
- FrameworkElement.cs
- ParameterModifier.cs
- BaseUriHelper.cs
- COM2Enum.cs
- RC2.cs
- PersonalizableAttribute.cs
- PeerCredentialElement.cs
- LocalizationComments.cs
- SqlProviderServices.cs
- AQNBuilder.cs
- TextTreeTextNode.cs
- AttachedAnnotationChangedEventArgs.cs
- SetterBase.cs
- CorePropertiesFilter.cs
- UnregisterInfo.cs
- LinqDataSourceDisposeEventArgs.cs
- RoutedEventHandlerInfo.cs
- BuildTopDownAttribute.cs
- MiniAssembly.cs
- CaseInsensitiveOrdinalStringComparer.cs
- RequestCachePolicyConverter.cs
- ProfileSettingsCollection.cs
- MSAAEventDispatcher.cs
- Attachment.cs
- HandlerBase.cs
- SchemaImporter.cs
- WindowInteractionStateTracker.cs
- MouseGestureValueSerializer.cs
- versioninfo.cs
- BridgeDataRecord.cs
- LiteralTextParser.cs
- TypeLoadException.cs
- TextBoxAutomationPeer.cs
- AccessedThroughPropertyAttribute.cs
- DataGridColumnDropSeparator.cs
- TemplateLookupAction.cs
- ResXDataNode.cs
- ExpressionWriter.cs
- PrtTicket_Public_Simple.cs
- SQLResource.cs
- UpdateManifestForBrowserApplication.cs
- SafeNativeMethods.cs
- EntityContainerEmitter.cs
- PinnedBufferMemoryStream.cs
- AmbientValueAttribute.cs
- RuntimeWrappedException.cs
- XmlKeywords.cs
- ColorBlend.cs
- SmiContext.cs
- HitTestDrawingContextWalker.cs
- _LoggingObject.cs
- ThreadStateException.cs
- MimeXmlReflector.cs
- XpsResourcePolicy.cs
- SmiMetaData.cs
- SerializationEventsCache.cs
- ThreadExceptionEvent.cs
- LinqDataSourceEditData.cs
- LineProperties.cs
- CodeTypeMemberCollection.cs
- FixedSOMGroup.cs
- ContainerParaClient.cs
- PenCursorManager.cs
- ParameterCollectionEditorForm.cs
- VersionedStreamOwner.cs
- TextPenaltyModule.cs
- Stream.cs
- DataSourceView.cs
- uribuilder.cs
- SafeBitVector32.cs
- NamespaceList.cs