public TreeNodeBase(TreeNodeFolder parent)
 {
     if (parent != null)
     {
         parent.AddChild(this);
     }
     _ParentTreeFolder = parent;
 }
 internal void ParentClear()
 {
     _ParentTreeFolder = null;
 }
 public TreeNodeFolder(TreeNodeFolder parent)
     : base(parent)
 {
 }