private void treeView1_AfterLabelEdit(object sender, NodeLabelEditEventArgs e)
 {
     if (SelectedNode is ContainerTreeNode)
     {
         if (e.Node == newNode)
         {
             ContainerCreatedEventArgs ee = new ContainerCreatedEventArgs(SelectedNode as ContainerTreeNode, (SelectedNode.Parent as ContainerTreeNode).Container);
             newNode = null;
             OnNewContainerOrdered(ee);
         }
         else
         {
             ContainerEventArgs ee = new ContainerEventArgs((SelectedNode as ContainerTreeNode).Container);
             OnContainerLabelEdit(ee);
         }
     }
     else
     {
         if (e.Node == newNode)
         {
             newNode = null;
             LeafCreatedEventArgs ee = new LeafCreatedEventArgs(SelectedNode as LeafTreeNode, (SelectedNode.Parent as ContainerTreeNode).Container);
             OnCreatingNewLeaf(ee);
         }
         else
         {
             LeafEventArgs ee = new LeafEventArgs((SelectedNode as LeafTreeNode).Leaf);
             OnLeafLableEdit(ee);
         }
     }
 }
 protected void OnCreatingNewLeaf(LeafCreatedEventArgs e)
 {
     if (CreatingNewLeaf != null)
     {
         CreatingNewLeaf(this, e);
     }
 }