protected void btn_chamnhuanbut_click(object sender, EventArgs e) { foreach (DataGridItem m_Item in DataGrid_tinbai.Items) { CheckBox chk_Select = (CheckBox)m_Item.FindControl("optSelect"); Label lblMaTacGia = (Label)m_Item.FindControl("lblMaTacGia"); if (chk_Select != null && chk_Select.Checked) { double id = double.Parse(DataGrid_tinbai.DataKeys[int.Parse(m_Item.ItemIndex.ToString())].ToString()); string sql = "select THANHTOAN from T_NhuanBut where Ma_TinBai=" + id + " and Ma_tacgia=" + lblMaTacGia.Text; 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_UpdateThanhToanNhuanButTinBai(id, double.Parse(lblMaTacGia.Text), false, DateTime.Now, _user.UserID); } else { Daltinbai.Sp_UpdateThanhToanNhuanButTinBai(id, double.Parse(lblMaTacGia.Text), true, DateTime.Now, _user.UserID); } } } LoadData(); }