private void DetachVisibilityHandler(WindowCommandsItem container)
{
if (container != null)
{
container.VisibilityPropertyChangeNotifier = null;
}
}
private void AttachVisibilityHandler(WindowCommandsItem container, UIElement item)
{
if (container != null)
{
// hide the container, if there is no UIElement
if (null == item)
{
container.Visibility = Visibility.Collapsed;
return;
}
container.Visibility = item.Visibility;
var isVisibilityNotifier = new PropertyChangeNotifier(item, UIElement.VisibilityProperty);
isVisibilityNotifier.ValueChanged += VisibilityPropertyChanged;
container.VisibilityPropertyChangeNotifier = isVisibilityNotifier;
}
}