如何获得linq结果作为字符串数组？

Question

我想将用户属性列表转换为字符串数组(对于json接收器),如:

List<User> users = <..list of users from db...>

var jsonData = (
   from user in users
   select new { user.Id, user.Person.Lastname, user.Person.Firstname });

return Json(jsonData)

结果是一个名为fields的数组

[{"Id":1,"Lastname":"Doe","Firstname":"John"},{"Id":2,"Lastname":"Smith","Firstname":"Adam"},...]

但我希望它是普通字符串数组的数组,如:

[["1","Doe","John"]
 ["2","Smith","Adam"], ...]

如何将linq结果转换为字符串数组？

Answer 1

var jsonData = from user in users
               select new[] { user.Id.ToString(),
                              user.Person.Lastname,
                              user.Person.Firstname };

或者,您可以使用lambda语法:

var jsonData = users.Select(user => new[] { user.Id.ToString(),
                                            user.Person.Lastname,
                                            user.Person.Firstname });