treeview 无刷新选中取值

Question

treeview利用UpdatePanel实现无刷新异步加载树
请问如何无刷新选中节点，获取节点值，传到一个textbox中

Answer 1

ShowCheckBoxes="All"
加事件OnTreeNodeCheckChanged="tvCategory_TreeNodeCheckChanged"
protected void tvCategory_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
    {
        for (int i = 0; i < tvCategory.CheckedNodes.Count;i++ )
        {
            if (tvCategory.CheckedNodes[i] != e.Node)
            {
                tvCategory.CheckedNodes[i].Checked = false;
            }
        }
        txtCode.Text = e.Node.Value;
    }

Answer 2

好像不行
我的treeview没有复选框
第一无刷新，如何把值传给textbox呢
这个页面中的代码<div>
        <table class="style1">
            <tr>
                <td class="style2">
                   <asp:Label ID="Label2" runat="server" Text="请选择要上传的目录"></asp:Label>
                   <asp:ScriptManager ID="ScriptManager2" runat="server">
                   </asp:ScriptManager>
                   <asp:UpdatePanel ID="UpdatePanel1" runat="server">
                   <ContentTemplate>
                   <asp:Panel ID="Panel2" runat="server"  Width="197px" ScrollBars="Auto" 
                        Height="467px"  BorderColor="#0099CC" BorderStyle="Groove" HorizontalAlign="Justify">
            
                        <asp:TreeView ID="TreeView1" Width="155px"   runat="server" Height="250px"   OnTreeNodeExpanded="TreeNodeExpanded"
                               EnableClientScript="true" OnTreeNodePopulate="PopulateNode" PopulateNodesFromClient="true" >
                        </asp:TreeView>
                    </asp:Panel> 
                    </ContentTemplate> 
                    
                    </asp:UpdatePanel>
                   
                </td>
                <td class="style3">
                    <asp:Label ID="Label3" runat="server" Text="你要上传的目录是："></asp:Label>
                    <br />
                    <asp:TextBox ID="TextBox1" runat="server" Height="87px" TextMode="MultiLine" 
                        Width="168px">是少数是少数</asp:TextBox>
                    <br />
                 
                </td>
                <td>
                    &nbsp;</td>
                <td>
                    &nbsp;</td>
            </tr>
        </table>
        
       
    </div>

Answer 3

我觉得也用服务器的treeview是不行的；它每次都重定向了，用自己写的javascript貌似可以。

Answer 4

用这个吧
http://www.open-open.com/ajax/Tree.htm