Question

我写了这个：


var destinations = db.DestinationDetails.
    Where(dd => dd.Language.Lang == "en-US" &&
        dd.Destination.Client.Any(c => c.Email == "abc@yahoo.com"));

如何检索电子邮件abc@yahoo.com的客户端没有的destinationDetails？

这不起作用：


var destinations = db.DestinationDetails.
    Where(dd => dd.Language.Lang == "en-US" &&
        dd.Destination.Client.Any(c => c.Email != "abc@yahoo.com"));

谢谢！

Answer 1

我认为你想使用All而不是Any：

dd.Destination.Client.All(c => c.Email != "abc@yahoo.com")

Answer 2

尝试

var destinations = db.DestinationDetails.
    Where(dd => dd.Language.Lang == "en-US" &&
        !dd.Destination.Client.Any(c => c.Email == "abc@yahoo.com"));

Answer 3

var destinations =(db.DestinationDetails.
    Where(dd => dd.Language.Lang == "en-US" &&
    dd.Destination.Client.Any(c => c.Email != "abc@yahoo.com")).Select c).ToList();

试试这个，你可能得到结果......

LinQ to Entities：执行相反的查询

3 个答案: