protected void GetSalesCenterList()
        {
            SalesCenterBLL salesCenter = new SalesCenterBLL();

            try
            {
                DataTable dt = salesCenter.GetSalesCenterList();

                if (dt.Rows.Count > 0)
                {
                    salesCenterListListBox.Items.Clear();

                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        salesCenterListListBox.Items.Add(new ListItem(dt.Rows[i]["SalesCenterName"].ToString(), dt.Rows[i]["SalesCenterId"].ToString()));
                    }
                }
                else
                {
                    msgbox.Visible = true; msgTitleLabel.Text = "Sales Center List Data Not Found!!!"; msgDetailLabel.Text = "";
                    msgbox.Attributes.Add("class", "alert alert-warning");
                }
            }
            catch (Exception ex)
            {
                string message = ex.Message;
                if (ex.InnerException != null) { message += " --> " + ex.InnerException.Message; }
                MyAlertBox("ErrorAlert(\"" + ex.GetType() + "\", \"" + message + "\", \"\");");
            }
            finally
            {
                salesCenter = null;
                countSalesCenterLabel.Text = "Total: " + salesCenterListListBox.Items.Count.ToString();
            }
        }