LINQ 多表查询的返回值类型问题？？？？

public List <object> GetStudentInfoClassByAll()
{
var list = from s in db.StudentInfo
join c in db.Class
on s.BJID equals c.BJID
select s;
return list.ToList();
}

这样会报错：无法隐式转换

怎么定义返回值类型？？？

请高手讲解！！

建议您可以先定义一个类：

public class Student_Class

{

public Student stu{get;set;}

public Class class{get;set;}

}

public List <Student_Class> GetStudentInfoClassByAll()
{
var list = from s in db.StudentInfo
join c in db.Class
on s.BJID equals c.BJID
select new Student_Class

{

stu = s.StudentName;

cls = c.ClassName;

}
return list.ToList();
}