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2010-11-08T18:26:50.137
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<p>If you set IsBusy to true in your button click handler you will see the animation does work. The problem is you are setting it to true before it has loaded so _layoutRoot and _storyboard are null and the animation never begins.</p> <pre><code>public class CustomBusyControl : Control { public CustomBusyControl() { DefaultStyleKey = typeof(CustomBusyControl); Loaded += (s,e) => ToggleBusy(this); } public static readonly DependencyProperty IsBusyProperty = DependencyProperty.Register("IsBusy", typeof(bool), typeof(CustomBusyControl), new PropertyMetadata(new PropertyChangedCallback(OnIsBusyChanged))); private static void OnIsBusyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) { ToggleBusy(obj as CustomBusyControl); } private static void ToggleBusy(CustomBusyControl control) { if (control != null && control._layoutRoot != null && control._storyboard != null) { if ((bool)control.IsBusy) { control._layoutRoot.Visibility = Visibility.Visible; control._storyboard.Begin(); } else { control._layoutRoot.Visibility = Visibility.Collapsed; control._storyboard.Stop(); } } } private Canvas _layoutRoot; private Storyboard _storyboard; public override void OnApplyTemplate() { _layoutRoot = GetTemplateChild("LayoutRoot") as Canvas; Debug.Assert(_layoutRoot != null, "LayoutRoot is null"); _storyboard = GetTemplateChild("IndicatorStoryboard") as Storyboard; base.OnApplyTemplate(); } public bool IsBusy { get { return (bool)GetValue(IsBusyProperty); } set { SetValue(IsBusyProperty, value); } } } </code></pre>
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1. POStoryboard in custom control
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1. POStoryboard in custom control
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1. COoh yes, this was the issued ... thanks for your help. Best regards
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