用dataset来填充tree_成都软件开发公司

用dataset来填充tree

作者：xiaoxiao
发表时间：2020-12-23 10:53
来源：未知

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 );

}