public ActionResult AddSellerInstallment(SellerViewModel sellerviewModel)
        {
            List <SellerInstallmentModel> lstinstallment = _ISeller.AddSellerInstallment(sellerviewModel.Installments);

            sellerviewModel.sellerInfor = new SellerModel();
            sellerviewModel.Lstproducts = new List <SellerProductModel>();

            sellerviewModel.Installments    = new SellerInstallmentModel();
            sellerviewModel.LstInstallments = new List <SellerInstallmentModel>();
            sellerviewModel.LstInstallments.AddRange(lstinstallment);
            return(PartialView("~/Views/Sellers/_SellerInstallments.cshtml", sellerviewModel));
        }