public UIElement()
{
VisualChildrean = new ReadOnlyObservableCollection <UIElement>(this.visualChildrean);
LogicalChildrean = new ReadOnlyObservableCollection <UIElement>(this.logicalChildrean);
if (this is RootWindow)
{
RootWindow = this as RootWindow;
}
DepthProperty.Bind(this, VisualParentProperty.Of(this).Over(DepthProperty).ConvertOneWay(toConvert => toConvert + 1));
}
set => SetValue(DepthProperty, value);