protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { var dt = _entities.GetAllCVUngVien(); RadGrid1.DataSource = dt; RadGrid1.DataBind(); RadGrid1.Items[0].Selected = true; GridDataItem item = RadGrid1.Items[0]; Int32 IDNhanVien = Int32.Parse(item["IDNhanVien"].Text); FillCurrentEmployeeDetail(IDNhanVien); var TreeData = _entities.GetDotTuyenDung(); RadTreeView1.DataTextField = "TenDotTuyenDung"; RadTreeView1.DataFieldID = "IDDotTuyenDung"; RadTreeView1.DataFieldParentID = "IDParent"; RadTreeView1.DataSource = TreeData; RadTreeView1.DataBind(); } }