void LoadAccountType()
 {
     try
     {
         Session["AccountType"] = BLLAccountType.GetAccountType(null, null, 0);
         List <ATTAccountType> AccountTypeList = (List <ATTAccountType>)Session["AccountType"];
         this.lstAccountType.DataSource     = AccountTypeList;
         this.lstAccountType.DataTextField  = "AccountTypeName";
         this.lstAccountType.DataValueField = "AccountTypeID";
         this.lstAccountType.DataBind();
     }
     catch (Exception ex)
     {
         this.lblStatusMessage.Text = ex.Message;
         this.programmaticModalPopup.Show();
     }
 }