/// <summary>
/// Generate install billing OCC combobox
/// </summary>
/// <param name="helper"></param>
/// <param name="id"></param>
/// <param name="ContractCode"></param>
/// <param name="attribute"></param>
/// <param name="include_idx0"></param>
/// <returns></returns>
public static MvcHtmlString InstallBillingOCCComboBox(this HtmlHelper helper, string id, string ContractCode = null, object attribute = null, bool include_idx0 = true)
{
List <tbt_BillingBasic> lst = new List <tbt_BillingBasic>();
try
{
IBillingHandler handle = ServiceContainer.GetService <IBillingHandler>() as IBillingHandler;
lst = handle.GetTbt_BillingBasicListData(ContractCode);
//var sortedList = from p in lst
// orderby p.BillingOCC
// select p;
var sortedList = (from t in lst
orderby t.BillingOCC
group t by new
{
BillingOCC = t.BillingOCC
} into g
select g.FirstOrDefault());
lst = sortedList.ToList <tbt_BillingBasic>();
}
catch
{
lst = new List <tbt_BillingBasic>();
}
return(CommonUtil.CommonComboBox <tbt_BillingBasic>(id, lst, "BillingOCC", "BillingOCC", attribute));
}