private void RP_HD_Load(object sender, EventArgs e)
{
List <SP_CHITIETHOADON_Result> tmp = db.SP_CHITIETHOADON(SoHD).ToList();
BindingSource bs = new BindingSource();
bs.DataSource = tmp;
CTHD_RP rp = new CTHD_RP();
rp.SetDataSource(bs);
crv.ReportSource = rp;
crv.RefreshReport();
}