Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Automation / Peers / StatusBarAutomationPeer.cs / 1 / StatusBarAutomationPeer.cs
using System; using System.Collections; using System.Collections.Generic; using System.Runtime.InteropServices; using System.Security; using System.Text; using System.Windows; using System.Windows.Automation.Provider; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Interop; using System.Windows.Media; using MS.Internal; using MS.Win32; namespace System.Windows.Automation.Peers { /// public class StatusBarAutomationPeer : FrameworkElementAutomationPeer { /// public StatusBarAutomationPeer(StatusBar owner): base(owner) {} /// protected override string GetClassNameCore() { return "StatusBar"; } /// protected override AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.StatusBar; } /// protected override ListGetChildrenCore() { List list = new List (); ItemsControl itemscontrol = Owner as ItemsControl; if (itemscontrol != null) { foreach (object obj in itemscontrol.Items) { if (obj is Separator) { Separator separator = obj as Separator; list.Add(UIElementAutomationPeer.CreatePeerForElement(separator)); } else { StatusBarItem item = itemscontrol.ItemContainerGenerator.ContainerFromItem(obj) as StatusBarItem; if (item != null) { //If the item is a string or TextBlock or StatusBarItem //StatusBarItemAutomationPeer will be created to show the text //Or we'll use the control's automation peer if (obj is string || obj is TextBlock || (obj is StatusBarItem && ((StatusBarItem)obj).Content is string)) { list.Add(UIElementAutomationPeer.CreatePeerForElement(item)); } else { List childList = GetChildrenAutomationPeer(item); if (childList != null) { foreach (AutomationPeer ap in childList) { list.Add(ap); } } } } } } } return list; } /// /// Get the children of the parent which has automation peer /// private ListGetChildrenAutomationPeer(Visual parent) { Invariant.Assert(parent != null); List children = null; iterate(parent, (IteratorCallback)delegate(AutomationPeer peer) { if (children == null) children = new List (); children.Add(peer); return (false); }); return children; } private delegate bool IteratorCallback(AutomationPeer peer); // private static bool iterate(Visual parent, IteratorCallback callback) { bool done = false; AutomationPeer peer = null; int count = parent.InternalVisualChildrenCount; for (int i = 0; i < count && !done; i++) { Visual child = parent.InternalGetVisualChild(i); if (child != null && child.CheckFlagsAnd(VisualFlags.IsUIElement) && (peer = CreatePeerForElement((UIElement)child)) != null) { done = callback(peer); } else { done = iterate(child, callback); } } return (done); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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