Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / DataObjectSettingDataEventArgs.cs / 1305600 / 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.
Link Menu

This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DictionaryBase.cs
- RsaKeyIdentifierClause.cs
- SocketElement.cs
- GridViewItemAutomationPeer.cs
- ChoiceConverter.cs
- CollectionViewGroupInternal.cs
- BrowserCapabilitiesFactoryBase.cs
- ObjectStateFormatter.cs
- ApplyImportsAction.cs
- Events.cs
- TypedTableGenerator.cs
- DetailsViewPagerRow.cs
- PinnedBufferMemoryStream.cs
- IsolatedStorageFileStream.cs
- CorrelationActionMessageFilter.cs
- NativeCompoundFileAPIs.cs
- DataSourceProvider.cs
- AutomationPropertyInfo.cs
- SByteConverter.cs
- PeerNameRecord.cs
- ControlAdapter.cs
- NumericPagerField.cs
- ExtenderProvidedPropertyAttribute.cs
- Win32.cs
- Memoizer.cs
- StartUpEventArgs.cs
- XsdBuilder.cs
- DetectRunnableInstancesTask.cs
- PageCodeDomTreeGenerator.cs
- RemoteTokenFactory.cs
- HttpCapabilitiesBase.cs
- ModelTreeManager.cs
- QueueProcessor.cs
- ProfessionalColors.cs
- SvcFileManager.cs
- TimeSpanConverter.cs
- ToolStripMenuItem.cs
- WindowsProgressbar.cs
- ListViewSelectEventArgs.cs
- XmlQueryRuntime.cs
- ToolStripRendererSwitcher.cs
- XsltOutput.cs
- SchemaEntity.cs
- ReadOnlyNameValueCollection.cs
- VariantWrapper.cs
- IdentifierService.cs
- SynchronizedPool.cs
- CaseStatementSlot.cs
- ListChangedEventArgs.cs
- BamlLocalizabilityResolver.cs
- CommandDesigner.cs
- XmlElementAttribute.cs
- XmlIncludeAttribute.cs
- DefinitionUpdate.cs
- DocumentViewerAutomationPeer.cs
- SafeNativeMethods.cs
- FaultHandlingFilter.cs
- TreeNode.cs
- PaintValueEventArgs.cs
- PerformanceCounterLib.cs
- TableRowGroupCollection.cs
- InstanceData.cs
- RequestSecurityTokenSerializer.cs
- XmlSubtreeReader.cs
- Vector3DAnimation.cs
- XamlPoint3DCollectionSerializer.cs
- PauseStoryboard.cs
- ToolStripProfessionalLowResolutionRenderer.cs
- WebBrowserPermission.cs
- MemoryMappedView.cs
- EventLogger.cs
- EntityTypeEmitter.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- SatelliteContractVersionAttribute.cs
- MethodImplAttribute.cs
- ProgressPage.cs
- UIInitializationException.cs
- TreeViewHitTestInfo.cs
- AccessibleObject.cs
- UnsafePeerToPeerMethods.cs
- SqlParameterizer.cs
- Barrier.cs
- ViewGenResults.cs
- QueryContinueDragEvent.cs
- UIElementHelper.cs
- Substitution.cs
- Size3DValueSerializer.cs
- RelationshipConstraintValidator.cs
- IpcClientChannel.cs
- ColumnHeader.cs
- EventLogTraceListener.cs
- UnsafeNativeMethods.cs
- XsltOutput.cs
- Propagator.JoinPropagator.JoinPredicateVisitor.cs
- UInt16.cs
- HttpRequestContext.cs
- IxmlLineInfo.cs
- NetSectionGroup.cs
- SqlRecordBuffer.cs
- TemplateComponentConnector.cs