数据库取值形成xml实现tree

Create three .aspx files TreeViewDataSet.aspx %@ import Namespace="Microsoft.Web.UI.WebControls" % %@ Register TagPrefix="IE" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" % html head title TreeViewDataSe

Create three .aspx files

TreeViewDataSet.aspx

<%@ import Namespace="Microsoft.Web.UI.WebControls" %>
<%@ Register TagPrefix="IE" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %>

Categories.aspx
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>