protected void GetSalesRecordProductListByIdForReturn(string salesRecordId)
        {
            SalesOrderBLL salesOrder = new SalesOrderBLL();

            try
            {
                DataTable dt = salesOrder.GetSalesRecordProductListByIdForReturn(salesRecordId);

                if (dt.Rows.Count > 0)
                {
                    dt.Columns.Add("ReturnQuantity");
                    dt.Columns.Add("ReturnAmount");
                    dt.AcceptChanges();

                    salesRecordProductListGridView.DataSource = dt;
                    salesRecordProductListGridView.DataBind();

                    LumexSessionManager.Add("RPLdt", dt);

                    for (int i = 0; i < salesRecordProductListGridView.Rows.Count; i++)
                    {
                        if (salesRecordProductListGridView.Rows[i].Cells[2].Text.Trim() == salesRecordProductListGridView.Rows[i].Cells[6].Text.Trim())
                        {
                            TextBox returnQuantityTextBox = (TextBox)salesRecordProductListGridView.Rows[i].FindControl("returnQuantityTextBox");
                            returnQuantityTextBox.Enabled = false;
                        }
                    }

                    if (salesRecordProductListGridView.Rows.Count > 0)
                    {
                        salesRecordProductListGridView.UseAccessibleHeader = true;
                        salesRecordProductListGridView.HeaderRow.TableSection = TableRowSection.TableHeader;
                    }
                }
                else
                {
                    msgbox.Visible = true; msgTitleLabel.Text = "Data Not Found!!!"; msgDetailLabel.Text = "";
                }
            }
            catch (Exception ex)
            {
                string message = "Some things goes wrong on create Sales Return";
                if (ex.InnerException != null) { message += " --> " + ex.InnerException.Message; }
                MyAlertBox("ErrorAlert(  \"" + message + "\", \"\");");
            }
            finally
            {
                salesOrder = null;
            }
        }