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POWPF TextBox Intercepting RoutedUICommands
 

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    <p>I am trying to get Undo/Redo keyboard shortcuts working in my WPF application (I have my own custom functionality implemented using the <a href="https://stackoverflow.com/questions/701131/data-structure-used-to-implement-undo-and-redo-option/701135#701135">Command Pattern</a>). It seems, however, that the <code>TextBox</code> control is intercepting my "Undo" RoutedUICommand.</p> <p>What is the simplest way to disable this so that I can catch Ctrl+Z at the root of my UI tree? I would like to avoid putting a ton of code/XAML into each <code>TextBox</code> in my application if possible.</p> <p>The following briefly demonstrates the problem:</p> <pre><code>&lt;Window x:Class="InputBindingSample.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:loc="clr-namespace:InputBindingSample" Title="Window1" Height="300" Width="300"&gt; &lt;Window.CommandBindings&gt; &lt;CommandBinding Command="loc:Window1.MyUndo" Executed="MyUndo_Executed" /&gt; &lt;/Window.CommandBindings&gt; &lt;DockPanel LastChildFill="True"&gt; &lt;StackPanel&gt; &lt;Button Content="Ctrl+Z Works If Focus Is Here" /&gt; &lt;TextBox Text="Ctrl+Z Doesn't Work If Focus Is Here" /&gt; &lt;/StackPanel&gt; &lt;/DockPanel&gt; &lt;/Window&gt; </code></pre> <hr> <pre><code>using System.Windows; using System.Windows.Input; namespace InputBindingSample { public partial class Window1 { public static readonly RoutedUICommand MyUndo = new RoutedUICommand("MyUndo", "MyUndo", typeof(Window1), new InputGestureCollection(new[] { new KeyGesture(Key.Z, ModifierKeys.Control) })); public Window1() { InitializeComponent(); } private void MyUndo_Executed(object sender, ExecutedRoutedEventArgs e) { MessageBox.Show("MyUndo!"); } } } </code></pre>
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    1. USJoseph Sturtevant
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