private void ArrangeContainedElements()
{
ContainerElement parentEleme = this;
//order the unorderdelements by zorder
//and start building the tree by pluggin each element under it
foreach (var elem in unorderdelements.OrderByDescending(x => x.ZOrder))
{
parentEleme.AddContainedElement(elem);
if (elem is ContainerElement)
{
parentEleme = (ContainerElement)elem;
}
}
}
