Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Controls / SelectionChangedEventArgs.cs / 1305600 / SelectionChangedEventArgs.cs
using System.ComponentModel; using System.Collections; using System.Collections.Generic; using System.Windows.Threading; using System.Windows.Data; using System.Windows.Automation; using System.Windows.Automation.Provider; using MS.Utility; using System.Windows; using System; using System.Diagnostics; namespace System.Windows.Controls { ////// The delegate type for handling a selection changed event /// public delegate void SelectionChangedEventHandler( object sender, SelectionChangedEventArgs e); ////// The inputs to a selection changed event handler /// public class SelectionChangedEventArgs : RoutedEventArgs { #region Constructors ////// The constructor for selection changed args /// /// The event ID for the event about to fire -- should probably be Selector.SelectionChangedEvent /// The items that were unselected during this event /// The items that were selected during this event public SelectionChangedEventArgs( RoutedEvent id, IList removedItems, IList addedItems) { if (id == null) throw new ArgumentNullException("id"); if (removedItems == null) throw new ArgumentNullException("removedItems"); if (addedItems == null) throw new ArgumentNullException("addedItems"); RoutedEvent = id; _removedItems = new object[removedItems.Count]; removedItems.CopyTo(_removedItems, 0); _addedItems = new object[addedItems.Count]; addedItems.CopyTo(_addedItems, 0); } internal SelectionChangedEventArgs(IList removedItems, IList addedItems) : this(System.Windows.Controls.Primitives.Selector.SelectionChangedEvent, removedItems, addedItems) { } #endregion #region Public Properties ////// An IList containing the items that were unselected during this event /// public IList RemovedItems { get { return _removedItems; } } ////// An IList containing the items that were selected during this event /// public IList AddedItems { get { return _addedItems; } } #endregion #region Protected Methods ////// This method is used to perform the proper type casting in order to /// call the type-safe SelectionChangedEventHandler delegate for the SelectionChangedEvent event. /// /// The handler to invoke. /// The current object along the event's route. protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget) { SelectionChangedEventHandler handler = (SelectionChangedEventHandler)genericHandler; handler(genericTarget, this); } #endregion #region Data private object[] _addedItems; private object[] _removedItems; #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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