/// <summary>
/// Gets all children of a ShapeElement as a List
/// </summary>
/// <remarks>This is a wrapper for easy use of the FindFirstChild() and FindNextChild() methodes</remarks>
/// <param name="shape">a ShapeElement</param>
/// <returns>the children of the given ShapeElement</returns>
public static IList <DiagramItem> Children(this ShapeElement shape)
{
List <DiagramItem> list = new List <DiagramItem>();
DiagramItem x = shape.FindFirstChild(false);
while (x != null)
{
list.Add(x);
x = shape.FindNextChild(x, false);
}
return(list);
}