帮改改有关treeview代码

<%@ Page Language="C#" %>

<html>
<head>
    <style>
    
    </style>

    <script type="text/javascript">


    </script>

</head>
<body>
    <form id="form1" runat="server">
        <div id="ie5menu" class="skin0" onmouseover="highlightie5()" onmouseout="lowlightie5()"
            onclick="jumptoie5();">
            <div id="one" class="menuitems" url="">
            </div>
            <div id="two" class="menuitems" url="">
            </div>
        </div>
        <asp:TreeView ID="TreeView1" runat="server">
            <Nodes>
                <asp:TreeNode Text="a" Value="a">
                    <asp:TreeNode Text="b" Value="b">
                        <asp:TreeNode Text="c" Value="c"></asp:TreeNode>
                    </asp:TreeNode>
                </asp:TreeNode>
                <asp:TreeNode Text="cc" Value="cc">
                    <asp:TreeNode Text="ccc" Value="ccc">
                        <asp:TreeNode Text="cccc" Value="cccc"></asp:TreeNode>
                    </asp:TreeNode>
                </asp:TreeNode>
            </Nodes>
            <SelectedNodeStyle BackColor="#C00000" />
        </asp:TreeView>
    </form>

    <script type="text/javascript">
      if (document.all) {
          ie5menu.className = menuskin;
          document.getElementById('TreeView1').oncontextmenu = showmenuie5;
          document.body.onclick = hidemenuie5;
      }
    </script>
</body>
</html>
这个用的是以前版本的treeview控件，想改成2.0的treeview控件，怎么改啊，功能不要变 --------------------编程问答-------------------- 不是上面的是下面这段代码
TreeView.aspx

  <%@   Register   TagPrefix="iewc"   Namespace="Microsoft.Web.UI.WebControls"   Assembly="Microsoft.Web.UI.WebControls,   Version=1.0.2.226,   Culture=neutral,   PublicKeyToken=31bf3856ad364e35"   %>
  <HTML>
  <HEAD>
  <title>TreeView控件右键菜单</title>
  <style>
  
  </style>
  </HEAD>
  <body   onclick="hideMenu()">
  <form   id="TreeView"   method="post"   runat="server">
  <iewc:TreeView   id="TreeView1"   runat="server"   ExpandLevel="3"   HoverStyle="color:blue;background:#ffff00;">
  <iewc:TreeNode   Text="Node0"   Expanded="True">
  <iewc:TreeNode   Text="Node3">
  <iewc:TreeNode   Text="Node5"></iewc:TreeNode>
  <iewc:TreeNode   Text="Node6"></iewc:TreeNode>
  </iewc:TreeNode>
  <iewc:TreeNode   Text="Node4"></iewc:TreeNode>
  </iewc:TreeNode>
  <iewc:TreeNode   Text="Node1"   Expanded="True">
  <iewc:TreeNode   Text="Node7">
  <iewc:TreeNode   Text="Node8"></iewc:TreeNode>
  </iewc:TreeNode>
  </iewc:TreeNode>
  <iewc:TreeNode   Text="Node2"   Expanded="True">
  <iewc:TreeNode   Text="Node9"></iewc:TreeNode>
  <iewc:TreeNode   Text="Node10">
  <iewc:TreeNode   Text="Node11"></iewc:TreeNode>
  <iewc:TreeNode   Text="Node12"></iewc:TreeNode>
  </iewc:TreeNode>
  </iewc:TreeNode>
  </iewc:TreeView>
  <div   id="popupMenu"   class="skin"   onMouseover="highlighItem()"   onMouseout="lowlightItem()"   onClick="clickItem()">
  <div   class="menuitems"   func="add">添加</div>
  <hr>
  <div   class="menuitems"   func="delete">删除</div>
  <div   class="menuitems"   func="modify">修改</div>
  </div>
  </form>
  <script   language="javascript">
  var   menuskin   =   "skin";
  var   node   =   null;

  function   hideMenu()
  {
  popupMenu.style.visibility   =   "hidden";
  }

  function   highlighItem()
  {
  if   (event.srcElement.className   ==   "menuitems")
  {
  event.srcElement.style.backgroundColor   =   "highlight";
  event.srcElement.style.color   =   "white";
  }
  }

  function   lowlightItem()
  {
  if   (event.srcElement.className   ==   "menuitems")
  {
  event.srcElement.style.backgroundColor   =   "";
  event.srcElement.style.color   =   "black";
  window.status   =   "";
  }
  }

  function   clickItem()
  {
  if   (event.srcElement.className   ==   "menuitems")
  {
  if(event.srcElement.getAttribute("func")   ==   "add"   &&   node   !=   null)
  {
  var   newNode=TreeView1.createTreeNode();
  newNode.setAttribute("Text","new   Node");
  node.add(newNode);
  }
  else   if   (event.srcElement.getAttribute("func")   ==   "delete"   &&   node   !=   null)
  {
  node.remove();
  }
  else   if   (event.srcElement.getAttribute("func")   ==   "modify"   &&   node   !=   null)
  {
  node.setAttribute("Text","hgknight");
  }
  }
  }

  function   TreeView1.oncontextmenu()
  {
  var   nodeIndex   =   event.treeNodeIndex;
  if   (typeof(nodeIndex)   ==   "undefined")
  {
  node   =   null;
  return   false;
  }

  node   =   TreeView1.getTreeNode(nodeIndex);

  var   rightedge   =   document.body.clientWidth-event.clientX;
  var   bottomedge   =   document.body.clientHeight-event.clientY;
  if   (rightedge   <popupMenu.offsetWidth)
  {
  popupMenu.style.left   =   document.body.scrollLeft   +   event.clientX   -   popupMenu.offsetWidth;
  }
  else
  {
  popupMenu.style.left   =   document.body.scrollLeft   +   event.clientX;
  }
  if   (bottomedge   <popupMenu.offsetHeight)
  {
  popupMenu.style.top   =   document.body.scrollTop   +   event.clientY   -   popupMenu.offsetHeight;
  }
  else
  {
  popupMenu.style.top   =   document.body.scrollTop   +   event.clientY;
  }
  popupMenu.style.visibility   =   "visible";
  return   false;
  }

  </script>
  </body>
  </HTML>
   --------------------编程问答-------------------- 右键点击treenode有add、delete、modify功能 --------------------编程问答-------------------- 好多呀。
http://blog.csdn.net/greatverve/archive/2008/12/08/3474297.aspx
http://blog.csdn.net/greatverve/archive/2008/10/30/3183140.aspx
这就研究了这些。 --------------------编程问答-------------------- 你先写好右键菜单，菜单里有add，delete，modify，然后逐一写事件就可以了
http://www.cnblogs.com/zhangpengshou/archive/2008/11/16/1334377.html
http://dev.csdn.net/article/26/26468.shtm --------------------编程问答-------------------- 汗...up。 --------------------编程问答-------------------- csdn

补充：.NET技术 ,  ASP.NET