public TreeBase AddChild(TreeBase item)
{
item.Parent = this;
Children.Add(item);
item.Level = this.Level + 1;
return(this);
}
public void ChangeChild(TreeBase target, TreeBase next)
{
var i = Children.IndexOf(target);
Children[i] = next;
next.Parent = this;
next.Level = this.Level + 1;
}
