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Invalidates visual after dialog opens #3882

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Invalidates visual after dialog opens #3882

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16 changes: 7 additions & 9 deletions src/MaterialDesignThemes.Wpf/DialogHost.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -393,18 +393,16 @@ private static void IsOpenPropertyChangedCallback(DependencyObject dependencyObj
dialogHost.DialogOpenedCallback?.Invoke(dialogHost, dialogOpenedEventArgs);
dialogHost._asyncShowOpenedEventHandler?.Invoke(dialogHost, dialogOpenedEventArgs);

dialogHost.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
//https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/187
//totally not happy about this, but on immediate validation we can get some weird looking stuff...give WPF a kick to refresh...
Task.Delay(300).ContinueWith(t => dialogHost.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() => {
CommandManager.InvalidateRequerySuggested();
//Delay focusing the popup until after the animation has some time, Issue #2912
UIElement? child = dialogHost.FocusPopup();

if (child != null)
{
//https://github.com/MaterialDesignInXAML/MaterialDesignInXamlToolkit/issues/187
//totally not happy about this, but on immediate validation we can get some weird looking stuff...give WPF a kick to refresh...
Task.Delay(300).ContinueWith(t => child.Dispatcher.BeginInvoke(new Action(() => child.InvalidateVisual())));
}
}));
child?.InvalidateVisual();

})));
}

/// <summary>
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