//_RemoveDiscount
public ActionResult _RemoveDiscount(List <DiscountModel> DiscountModel, int STT)
{
if (DiscountModel == null)
{
DiscountModel = new List <DiscountModel>();
}
else
{
var item = DiscountModel[STT];
DiscountModel.Remove(item);
}
return(PartialView("_DiscountListInner", DiscountModel));
}
