LINQ to Entities 无法识别“System.String ToString()”方法

string[] userIds = userList.Split(','); // is an array of integers
IList<User> users = (from user in this.repository.Users
                     where userIds.Contains(user.Id.ToString())
                     select user).ToList();

上面的查询给出

System.NotSupportedException: LINQ to Entities does not recognize the method 'System.String ToString()' method, and this method cannot be translated into a store expression

我能做些什么？

use 可以使用这样的东西，

where userIds.Contains(SqlFunctions.StringConvert((double)user.Id))

代替where userIds.Contains(user.Id.ToString())

这应该有效