对一个或多个实体的验证失败。有关详细信息，请参见“EntityValidationErrors”属性。

 

public void UploadEmployees(List<Employee> employees)
        {
            SalesERPDAL salesDal = new SalesERPDAL();
            foreach (Employee emp in employees)
            {
                salesDal.Employees.Add(emp);
                salesDal.Configuration.ValidateOnSaveEnabled = false;//增加这就就ok了
                salesDal.SaveChanges();
            }


        }

由于用的是MVC4 ,不支持这样写 

public void UploadEmployees(List<Employee> employees)
        {
            SalesERPDAL salesDal = new SalesERPDAL();

                salesDal.Employees.AddRange(employees);

                salesDal.SaveChanges();



        }