WPF禁用文本框的copy,paste,cut功能

禁用文本框的copy,paste,cut 菜单，以及对应的快捷键

一个简单的例子

Xaml

  <TextBox Height="23" HorizontalAlignment="Left"  Name="textBox1" VerticalAlignment="Top" Width="120"   BorderBrush="#FF444444" Foreground="#FF3C4661" FontSize="13"
                  InputMethod.IsInputMethodEnabled="False"
                  Text="Hello"
                  ContextMenu="{x:Null}">

            <TextBox.CommandBindings>
                <CommandBinding Command="ApplicationCommands.Paste" CanExecute="CommandBinding_CanExecute"></CommandBinding>
                <CommandBinding Command="ApplicationCommands.Cut" CanExecute="CommandBinding_CanExecute"></CommandBinding>
                <CommandBinding Command="ApplicationCommands.Copy" CanExecute="CommandBinding_CanExecute"></CommandBinding>
            </TextBox.CommandBindings>

        </TextBox>

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Xaml.cs

        private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)
        {
            e.CanExecute = false;
            e.Handled = true;
        }