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POWPF: A TextBox that has an event that fires when the Enter Key is pressed
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copied!<p>Instead of attaching a <code>PreviewKeyUp</code> event with each <code>TextBox</code> in my app and checking if the pressed key was an Enter key and then do an action, I decided to implement extended version of a <code>TextBox</code> that includes a DefaultAction event that fires when an Enter Key is pressed in a <code>TextBox</code>. </p> <p>What I did was basically create a new Class that extends from <code>TextBox</code> with a public event <code>DefaultAction</code>, like such:</p> <pre><code>public class DefaultTextBoxControl:TextBox { public event EventHandler<EventArgs> DefaultAction = delegate { }; public DefaultTextBoxControl() { PreviewKeyUp += DefaultTextBoxControl_PreviewKeyUp; } void DefaultTextBoxControl_PreviewKeyUp(object sender, System.Windows.Input.KeyEventArgs e) { if (e.Key != Key.Enter) { return; } DefaultAction(this, EventArgs.Empty); } } </code></pre> <p>I then use this custom textbox from my app like such (xaml):</p> <pre><code><Controls:DefaultTextBoxControl DefaultAction="DefaultTextBoxControl_DefaultAction"> </Controls:DefaultTextBoxControl> </code></pre> <hr> <p>Now in my little experience I've had in learning WPF I've realized that almost most of the time there is a "cooler" (and hopefully easier) way to implement things</p> <p>...so my question is, <strong>How can I improve the above control?</strong> Or maybe is there another way I can do the above control? ...maybe using only declarative code instead of both declarative (xaml) and procedural (C#) ?</p>

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