C# Linq to SQL:WHERE IN语句

基于上述（假设的）SQL模式和数据，我想使用Linq to SQL来获得数组值中名称为的所有结果

CREATE TABLE [MyNames]
(
    [ID] INT IDENTITY PRIMARY KEY,
    [Name] NVARCHAR(255) NULL
)

INSERT INTO [MyNames] VALUES ('John')
INSERT INTO [MyNames] VALUES ('Jane')
INSERT INTO [MyNames] VALUES ('Peter')
INSERT INTO [MyNames] VALUES ('Montgomery')
INSERT INTO [MyNames] VALUES ('Sarah')

结果应该包括

John

和

Sarah

。有了这些信息，我就可以添加需要添加的条目，在本例中是

Cassandra

---

我不想加载所有名称，因为列表可能会变得异常长。

您可以使用

Contains

扩展方法：

string[] names = {"John", "Cassandra", "Sarah"};

var results = (from n in db.Names
               where n.Name **in names**
               select n).ToList();

var results = (from n in db.Names
               where names.Any(x=>x == n.Name)
               select n).ToList();

---

您可以使用

名称.Contains（）

：

---

谢谢这是一个显而易见的答案。真不敢相信我从没想过。

var results = (from n in db.Names
               where names.Contains(n.Name)
               select n).ToList();

string[] names = {"John", "Cassandra", "Sarah"};

var results = (from n in db.Names
               where names.Contains(n.Name)
               select n).ToList();