取treeview中checkbox的值

 <asp:TreeView ID="TreeView1" runat="server" ShowCheckBoxes="Leaf" >
  </asp:TreeView>

 

 

 

 

 

 

 

private StringBuilder GetSelectedNode(TreeNode pNode)
        {
            StringBuilder ff = new StringBuilder();          

            foreach (TreeNode node in TreeView1.CheckedNodes)
            {
                 if (ff.ToString() != "")
                 {
                     ff.Append(",");
                 }
                 ff.Append(node.Value);
            }
            return ff;
        }