protected override void OnGotFocus(RoutedEventArgs e)
{
base.OnGotFocus(e);
Action action = () =>
{
if (FocusedElement != null)
{
_hasChildren = true;
FocusedElement.Focus();
}
else
{
//Focus first Focusable Child element of ChildWindow
var focusableChild = TreeHelper.FindChild <FrameworkElement>(this.Content as DependencyObject, x => x.Focusable);
if (focusableChild != null)
{
_hasChildren = true;
focusableChild.Focus();
}
else
{
_hasChildren = false;
}
}
};
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, action);
}
/// <inheritdoc />
public void Dispose()
{
try
{
FocusedElement?.Focus();
}
catch (COMException) { }
}
protected override void OnGotFocus(RoutedEventArgs e)
{
Action action = () =>
{
if (FocusedElement != null)
{
FocusedElement.Focus();
}
};
Dispatcher.BeginInvoke(DispatcherPriority.ApplicationIdle, action);
}