private void LoadDL()
        {
            DataAccessHelper db  = new DataAccessHelper();
            SqlCommand       cmd = db.Command("LOAD_DGV_BCVTPT");

            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@THANG", Convert.ToInt32(cboThang.Text));
            cmd.Parameters.AddWithValue("@NAM", Convert.ToInt32(txtNam.Text));
            SqlDataAdapter da = new SqlDataAdapter(cmd);

            db.dt = new System.Data.DataTable();
            da.Fill(db.dt);
            dgvBC_VTPT.DataSource = db.dt;
        }
        private void LoadDL_TDT()
        {
            DataAccessHelper db  = new DataAccessHelper();
            SqlCommand       cmd = db.Command("LOAD_TDT_BCDS");

            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@THANG", Convert.ToInt32(cboThang.Text));
            cmd.Parameters.AddWithValue("@NAM", Convert.ToInt32(txtNam.Text));
            SqlDataAdapter da = new SqlDataAdapter(cmd);

            db.dt = new System.Data.DataTable();
            da.Fill(db.dt);
            txtTongDoanhThu.DataBindings.Add("Text", db.dt, "TongDoanhThu");
        }