Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / DataObjectEventArgs.cs / 1305600 / 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
- GPPOINT.cs
- XmlQueryRuntime.cs
- SerializationSectionGroup.cs
- ConnectionOrientedTransportElement.cs
- SecurityHelper.cs
- SchemaEntity.cs
- XmlnsPrefixAttribute.cs
- COM2Properties.cs
- ScriptResourceMapping.cs
- TabItemAutomationPeer.cs
- SpotLight.cs
- CommonProperties.cs
- DependencyObject.cs
- FastEncoder.cs
- TemplateXamlTreeBuilder.cs
- SqlOuterApplyReducer.cs
- RedirectionProxy.cs
- PermissionAttributes.cs
- FillRuleValidation.cs
- FormParameter.cs
- MonitoringDescriptionAttribute.cs
- XmlComment.cs
- OracleBinary.cs
- OdbcRowUpdatingEvent.cs
- InternalTypeHelper.cs
- TextEffect.cs
- SourceInterpreter.cs
- RemoveStoryboard.cs
- InfoCardRSACryptoProvider.cs
- WindowsSecurityTokenAuthenticator.cs
- SafeRightsManagementSessionHandle.cs
- DataServiceRequest.cs
- DetectRunnableInstancesTask.cs
- RootCodeDomSerializer.cs
- Registry.cs
- Pkcs7Signer.cs
- ScopelessEnumAttribute.cs
- DataGridViewComboBoxEditingControl.cs
- ClrPerspective.cs
- DetailsViewModeEventArgs.cs
- NamespaceInfo.cs
- DependentList.cs
- WorkItem.cs
- ButtonBaseDesigner.cs
- SystemWebCachingSectionGroup.cs
- ListItemDetailViewAttribute.cs
- NonParentingControl.cs
- SettingsPropertyWrongTypeException.cs
- GroupDescription.cs
- ConcatQueryOperator.cs
- PropertyGridEditorPart.cs
- TextElement.cs
- NonClientArea.cs
- FusionWrap.cs
- RtfNavigator.cs
- StdValidatorsAndConverters.cs
- UnsafeNativeMethods.cs
- TimelineCollection.cs
- COM2Properties.cs
- GiveFeedbackEvent.cs
- InputReferenceExpression.cs
- CodeTypeParameter.cs
- FocusWithinProperty.cs
- ValidationResult.cs
- COM2IDispatchConverter.cs
- ExtendedProtectionPolicyTypeConverter.cs
- ContainerActivationHelper.cs
- TypeSystemHelpers.cs
- SHA256.cs
- Italic.cs
- SwitchLevelAttribute.cs
- CommonProperties.cs
- ObjectIDGenerator.cs
- BufferedStream.cs
- CollectionDataContract.cs
- FontFamily.cs
- XmlDownloadManager.cs
- ServicePointManager.cs
- CompilerWrapper.cs
- RuntimeEnvironment.cs
- BitSet.cs
- HeaderCollection.cs
- IIS7ConfigurationLoader.cs
- System.Data.OracleClient_BID.cs
- DocumentPaginator.cs
- LoginUtil.cs
- DocumentStream.cs
- EntityProxyFactory.cs
- COM2ColorConverter.cs
- RadioButtonList.cs
- BindingExpression.cs
- OleDbCommandBuilder.cs
- StatusBarPanel.cs
- TextEffect.cs
- XmlAttributeCache.cs
- ToRequest.cs
- Panel.cs
- RenderDataDrawingContext.cs
- SoapWriter.cs
- CodeSubDirectory.cs