Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Annotations / AnnotationResourceChangedEventArgs.cs / 1305600 / AnnotationResourceChangedEventArgs.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // AnnotationResourceChangedEvents are fired by an Annotation when a // AnnotationResource it contains has been added, removed or modified in // some way. The event includes the annotation, the AnnotationResource, // and what action was taken on the resoure. // // Spec: http://team/sites/ag/Specifications/Simplifying%20Store%20Cache%20Model.doc // // History: // 06/30/2004: rruiz: Added new event (args and handler) for the new // Object Model design. //----------------------------------------------------------------------------- using System; using System.ComponentModel; namespace System.Windows.Annotations { ////// Delegate for handlers of the AnnotationResourceChanged event on Annotation. /// /// the annotation firing the event /// args describing the Resource and the action taken public delegate void AnnotationResourceChangedEventHandler(Object sender, AnnotationResourceChangedEventArgs e); ////// Event args for changes to an Annotation's Resources. This class includes /// the annotation that fired the event, the Resource that was changed, and /// what action was taken on the Resource - added, removed or modified. /// public sealed class AnnotationResourceChangedEventArgs : EventArgs { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates an instance of AnnotationResourceChangedEventArgs. /// /// the Annotation firing the event /// the action taken on the Resource /// the Resource that was changed ///annotation or action is null ///action is not a valid value from AnnotationAction public AnnotationResourceChangedEventArgs(Annotation annotation, AnnotationAction action, AnnotationResource resource) { // The resource parameter can be null here - it is possible to add a null to // the list of resources and we must fire an event signalling a change in the collection. if (annotation == null) { throw new ArgumentNullException("annotation"); } if (action < AnnotationAction.Added || action > AnnotationAction.Modified) { throw new InvalidEnumArgumentException("action", (int)action, typeof(AnnotationAction)); } _annotation = annotation; _resource = resource; _action = action; } #endregion Constructors //------------------------------------------------------ // // Public Properties // //----------------------------------------------------- #region Public Properties ////// The Annotation that fired the event. /// public Annotation Annotation { get { return _annotation; } } ////// The Resource that was changed. /// public AnnotationResource Resource { get { return _resource; } } ////// The action that was taken on the Resource. /// public AnnotationAction Action { get { return _action; } } #endregion Public Properties //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields ////// The annotation that fired the event. /// private Annotation _annotation; ////// The Resource that was changed. /// private AnnotationResource _resource; ////// The action taken on the Resource /// private AnnotationAction _action; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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