如果我要取得TreeView的节点的value要用哪个属性呢?如我点“新建节点1”时要把它的value为2赋给一个textbox
<asp:TreeView ID="TreeView2" runat="server" ExpandDepth="0"  onclick="javascript:GoSelect();">
            <Nodes>
                <asp:TreeNode Text="新建节点" Value="1" SelectAction="Expand">
                    <asp:TreeNode Text="新建节点1" Value="2"></asp:TreeNode>
                </asp:TreeNode>
            </Nodes>
        </asp:TreeView>