internal PostponeRefundBill MakeRefundBill(string remark)
{
if (!Succeed)
{
throw new InvalidOperationException("改期费未成功支付，不能退款");
}
if (RefundBill != null)
{
throw new Core.CustomException("改期费是一次性退完，不能重复退");
}
var refundBill = new PostponeRefundBill(ApplyformId)
{
PayBill = this,
Remark = remark,
Applier = Applier.MakeRefundBill()
};
var accepter = new Role.Platform(Accepter.Account);
refundBill.Accepter = accepter.MakeRefundBill(Accepter.Deduction, new[] { refundBill.Applier });
refundBill.Tradement = Tradement.MakeRefundment(Math.Abs(Applier.Amount), 0, ApplyformId.ToString());
return(refundBill);
}
