protected void btn_chamnhuanbut_click(object sender, EventArgs e) { foreach (DataGridItem m_Item in DataGrid_tinbaiAnh.Items) { CheckBox chk_Select = (CheckBox)m_Item.FindControl("optSelect"); double id = 0; if (chk_Select != null && chk_Select.Checked) { id = double.Parse(DataGrid_tinbaiAnh.DataKeys[int.Parse(m_Item.ItemIndex.ToString())].ToString()); string sql = "select Thanhtoan from T_Anh where Ma_Anh=" + id; UltilFunc ulti = new UltilFunc(); DataTable dtthanhtoan = ulti.ExecSqlDataSet(sql).Tables[0]; bool check = false; if (dtthanhtoan.Rows[0]["Thanhtoan"].ToString() != DBNull.Value.ToString()) { check = (bool)dtthanhtoan.Rows[0]["Thanhtoan"]; } if (check) { Daltinbai.Sp_UpdateThanhToanNhuanButAnh(id, false, DateTime.Now, _user.UserID); } else { Daltinbai.Sp_UpdateThanhToanNhuanButAnh(id, true, DateTime.Now, _user.UserID); } } } LoadData(); }