用dataset来填充tree

2002pine

1,<iewc:TreeView id=TreeView1 style="Z-INDEX: 101; LEFT: 152px; POSITION: absolute; TOP: 168px" TreeNodeSrc="categories.aspx" runat="server">

2,categories.aspx.cs

private void Page_Load(object sender, System.EventArgs e)
  {
   string sql=@"select categoryname as Text,´products.aspx?catid=´+ltrim(str(categoryid)) as TreeNodesrc
    from categories as TreeNode for xml auto ,xmlData " ;
   SqlConnection sqlConn=new SqlConnection("Server=dbm-1;Uid=sa;pwd=;DataBase=Northwind");
   SqlCommand com=new SqlCommand (sql,sqlConn);
   DataSet ds=new DataSet();
   sqlConn .Open();
    ds.ReadXml(com.ExecuteXmlReader(),XmlReadMode.Fragment );
   sqlConn.Close();
   sqlConn=null;

ds.DataSetName ="TREENODES";
ds.WriteXml(Response.OutputStream );

}