28 lines
907 B
C#
28 lines
907 B
C#
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using System.Collections.Specialized;
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using System.Windows.Controls;
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using Microsoft.Xaml.Behaviors;
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namespace SWS.Electrical
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{
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public class ListBoxScrollToBottomBehavior : Behavior<ListBox>
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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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((INotifyCollectionChanged)AssociatedObject.Items).CollectionChanged += OnCollectionChanged;
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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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((INotifyCollectionChanged)AssociatedObject.Items).CollectionChanged -= OnCollectionChanged;
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}
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private void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
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{
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if (AssociatedObject.HasItems)
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{
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AssociatedObject.ScrollIntoView(AssociatedObject.Items[AssociatedObject.Items.Count - 1]);
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}
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}
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}
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}
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