protected void gvDSLoaiKhach_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
GridViewRow row = gvDSLoaiKhach.Rows[e.RowIndex];
TextBox txt2nd_column = row.Cells[1].Controls[0] as TextBox;
int a = Int32.Parse(gvDSLoaiKhach.DataKeys[e.RowIndex].Value.ToString());
string b = txt2nd_column.Text;
LoaiKhachHangDAO lkdao = new LoaiKhachHangDAO();
lkdao.SuaLoaiKhach(a, b);
e.Cancel = true;
gvDSLoaiKhach.EditIndex = -1;
HienThiDanhSach();
}
