C# asp web表单中用户的TreeView更新

我希望我的树视图在用户添加、删除或重命名节点时立即更新。这并没有发生。 这是我添加新节点的代码

 for ( int n=0; n<ip.Length; n++)
            {
                var camip = ip[n];
                var id = user[n];
                var pa = pass[n];
                var portno = port[n];
              string camName=  fillTree.InsertCam(camip, id, pa, portno, tbSelectedClass.Text);
                TreeNode node = new TreeNode
                {
                    Text = camName,
                    Value = camip
                };
                node.PopulateOnDemand = false;

                TreeMenuView1.SelectedNode.ChildNodes.Add(node);

            }

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for（int n=0；n您可以添加到另一篇文章的链接。@SehaxX
<cc1:TabContainer runat="server" CssClass="leftspace">
       <cc1:TabPanel ID="addpaneltab" runat="server" HeaderText="Add" >
           <ContentTemplate>

               <asp:LinkButton runat="server" Text="Add Institutes" ID="AddInstitutes" OnClientClick="displayPopup(); return false;"></asp:LinkButton>
               <asp:treeView ID="TreeMenuView1"  runat="server" OnSelectedNodeChanged="TreeMenuView1_SelectedNodeChanged" NodeStyle-NodeSpacing="5px" CssClass="leftspace" ToolTip="Add new Details">

            </asp:treeView>
           </ContentTemplate>
       </cc1:TabPanel>