public void DeleteForm(string keyValue)
{
if (service.IQueryable().Count(t => t.ListingId.Equals(keyValue)) > 0)
{
throw new Exception("删除失败！操作的对象包含了下级数据。");
}
else
{
service.Delete(t => t.F_Id == keyValue);
}
}
public IActionResult DeleteListing(int id)
{
var result = listingRepo.Delete(id);
return(RedirectToAction(nameof(Listings)));;
}