37 lines
938 B
C#
37 lines
938 B
C#
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using System.Windows;
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using System.Windows.Controls;
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using Microsoft.Xaml.Behaviors;
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namespace DTS.Common.Behaviors
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{
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public class TrimTextBoxBehavior : Behavior<TextBox>
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{
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protected override void OnAttached()
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{
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base.OnAttached();
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AssociatedObject.LostFocus += AssociatedObject_LostFocus;
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}
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private void AssociatedObject_LostFocus(object sender, RoutedEventArgs e)
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{
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var trim = AssociatedObject.Text.Trim();
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if (trim != AssociatedObject.Text)
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{
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AssociatedObject.Text = trim;
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AssociatedObject.GetBindingExpression(TextBox.TextProperty).UpdateSource();
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}
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}
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protected override void OnDetaching()
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{
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base.OnDetaching();
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AssociatedObject.LostFocus -= AssociatedObject_LostFocus;
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}
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}
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}
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