public void UpdateBillInternalState(IBill bill, InternalTrade trade, string remarks, DateTime? date = null)
{
ExceptionHelper.ThrowIfNull(bill, "bill");
using (var scope = new System.Transactions.TransactionScope())
{
var oldState = bill.State;
bill.UpdateInternalState(_User, trade);
_BillRepository.SaveChanges();
if (BillStates.清关完毕国内派送中 != oldState)
InsertBillStateHistory(bill, BillStates.清关完毕国内派送中, remarks, date);
scope.Complete();
}
}