Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / 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
- RestHandlerFactory.cs
- TopClause.cs
- ConsumerConnectionPoint.cs
- CurrentChangedEventManager.cs
- FlowLayoutPanel.cs
- ParenExpr.cs
- HtmlImage.cs
- ToolStripDesignerUtils.cs
- SupportsEventValidationAttribute.cs
- QueryAsyncResult.cs
- ValidationResult.cs
- Line.cs
- FormatException.cs
- XmlFormatWriterGenerator.cs
- UserControlAutomationPeer.cs
- SBCSCodePageEncoding.cs
- ListBindableAttribute.cs
- FontDifferentiator.cs
- TableLayoutSettings.cs
- EditorZoneDesigner.cs
- ResourceCategoryAttribute.cs
- CodeNamespaceCollection.cs
- ApplicationServicesHostFactory.cs
- Transform.cs
- ToolBar.cs
- ScrollViewer.cs
- FlagsAttribute.cs
- DesignerObjectListAdapter.cs
- ButtonBaseAdapter.cs
- Metadata.cs
- ItemCollection.cs
- PrintDialogDesigner.cs
- Selector.cs
- WindowsToolbarItemAsMenuItem.cs
- Hash.cs
- DuplicateWaitObjectException.cs
- AssociationSetMetadata.cs
- XmlQueryStaticData.cs
- PackageDigitalSignature.cs
- RtType.cs
- BuildProvider.cs
- DataGridHelper.cs
- UserPreferenceChangedEventArgs.cs
- ContentWrapperAttribute.cs
- FilteredSchemaElementLookUpTable.cs
- EntitySqlQueryCacheKey.cs
- CodeEventReferenceExpression.cs
- RawStylusInputCustomDataList.cs
- CustomValidator.cs
- _HelperAsyncResults.cs
- DesignerVerbCollection.cs
- Inflater.cs
- ToolStripSplitButton.cs
- CaretElement.cs
- BufferModesCollection.cs
- DbModificationCommandTree.cs
- XmlSerializerFactory.cs
- QilSortKey.cs
- ProtocolElement.cs
- Predicate.cs
- EntityDataSourceSelectedEventArgs.cs
- DataReaderContainer.cs
- FixedDocumentSequencePaginator.cs
- TextEditorMouse.cs
- DataReceivedEventArgs.cs
- SchemaDeclBase.cs
- HttpChannelHelper.cs
- InvariantComparer.cs
- WebPartAddingEventArgs.cs
- TableLayoutStyle.cs
- ToolTipAutomationPeer.cs
- StringToken.cs
- CustomUserNameSecurityTokenAuthenticator.cs
- TextModifier.cs
- Propagator.cs
- StandardToolWindows.cs
- MarginsConverter.cs
- XmlQualifiedName.cs
- Visual3D.cs
- ModelServiceImpl.cs
- DefaultValueConverter.cs
- CompModSwitches.cs
- JsonEnumDataContract.cs
- DataContract.cs
- RuleInfoComparer.cs
- DefinitionUpdate.cs
- DrawingImage.cs
- WebPartConnectionsDisconnectVerb.cs
- Socket.cs
- XmlCharCheckingWriter.cs
- UserControl.cs
- DateTimeValueSerializer.cs
- TypeSystemProvider.cs
- DbTransaction.cs
- SkewTransform.cs
- webeventbuffer.cs
- StorageBasedPackageProperties.cs
- HttpModuleCollection.cs
- ReachUIElementCollectionSerializer.cs
- PageAsyncTaskManager.cs