[英]Get data back from context before commit
customers customer = GetCustomer();
customer.UserId = userId;
customer.NeedToPayTax = true;
customer.IsApproved = false;
_customerRepository.Create(customer);
稍后在我們進行提交之前,我嘗試搜索此新customer
public int GetUncofirmedCount()
{
var query = from p in _context.Set<customers>()
where p.IsApproved == false
select p;
return query.Count();
}
但大小始終為0
。 如果我提交了,那么我可以看到正確的結果。 為什么? 即使尚未提交,如何從上下文取回數據?
未經測試的代碼:
_customerRepository.ObjectStateManager.GetObjectStateEntries(EntityState.Added)
.Where(o => o.GetType() == typeof(Customer) && o => !o.IsApproved)
.Count();
或者,對於較新版本的EF,請查看Local
;
_customerRepository.Customers.Local
.Where(o => o.GetType() == typeof(Customer) && o => !o.IsApproved)
.Count();
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