public HelperRectangle Copy()
{
var rect = new HelperRectangle();
rect.PosXProperty = (string)PosXProperty.Clone();
rect.PosYProperty = (string)PosYProperty.Clone();
rect.WidthProperty = (string)WidthProperty.Clone();
rect.HeightProperty = (string)HeightProperty.Clone();
return(rect);
}