private void LoadGroup() { MyTool.WebDemo gr = new MyTool.WebDemo(); int RootID = gr.GetRootID(Globals.AgentCatID); DataSet ds = gr.GetWebDemoGroupByParentID("WebDemoGroup", Globals.AgentCatID, RootID); DropDownListHelper ddlHelper = new DropDownListHelper(); ddlHelper.FillData(ddlGroup, ds, "Name", "ID", "---Xem tất cả---"); }