Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Automation / Peers / PasswordBoxAutomationPeer.cs / 1 / PasswordBoxAutomationPeer.cs
//---------------------------------------------------------------------------- // // File: PasswordBoxAutomationPeer.cs // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: The AutomationPeer for PasswordBox. // //--------------------------------------------------------------------------- using System; 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 PasswordBoxAutomationPeer : FrameworkElementAutomationPeer, IValueProvider { ////// Constructor /// /// PasswordBox for which this is an AutomationPeer public PasswordBoxAutomationPeer(PasswordBox owner): base(owner) {} ////// Class name for the type for which this is a peer. /// ///override protected string GetClassNameCore() { return "PasswordBox"; } /// /// Type for which this is a peer. /// ///override protected AutomationControlType GetAutomationControlTypeCore() { return AutomationControlType.Edit; } /// /// Return the patterns supported by PasswordBoxAutomationPeer /// /// ///override public object GetPattern(PatternInterface patternInterface) { object returnValue = null; if (patternInterface == PatternInterface.Value) { returnValue = this; } else if (patternInterface == PatternInterface.Scroll) { PasswordBox owner = (PasswordBox)Owner; if (owner.ScrollViewer != null) { returnValue = owner.ScrollViewer.CreateAutomationPeer(); ((AutomationPeer)returnValue).EventsSource = this; } } return returnValue; } /// /// Indicates whether or not this is a password control /// ///true override protected bool IsPasswordCore() { return true; } bool IValueProvider.IsReadOnly { get { return false; } } string IValueProvider.Value { get { throw new InvalidOperationException(); } } void IValueProvider.SetValue(string value) { if(!IsEnabled()) throw new ElementNotEnabledException(); PasswordBox owner = (PasswordBox)Owner; if (value == null) { throw new ArgumentNullException("value"); } owner.Password = value; } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseValuePropertyChangedEvent(string oldValue, string newValue) { if (oldValue != newValue) { RaisePropertyChangedEvent(ValuePatternIdentifiers.ValueProperty, oldValue, newValue); } } // [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.NoInlining)] internal void RaiseIsReadOnlyPropertyChangedEvent(bool oldValue, bool newValue) { if (oldValue != newValue) { RaisePropertyChangedEvent(ValuePatternIdentifiers.IsReadOnlyProperty, oldValue, newValue); } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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