我已经为我的自定义类实现了一个比较类,以便我可以在两个列表(StudentList1
和StudentList2
)上使用Intersect
。但是,当我运行下面的代码时,我没有得到任何结果。LINQ Intersect不返回项目
学生:
class CompareStudent : IEqualityComparer<Student>
{
public bool Equals(Student x, Student y)
{
if (x.Age == y.Age && x.StudentName.ToLower() == y.StudentName.ToLower())
return true;
return false;
}
public int GetHashCode(Student obj)
{
return obj.GetHashCode();
}
}
class Student
{
public int StudentId{set;get;}
public string StudentName{set;get;}
public int Age{get;set;}
public int StandardId { get; set; }
}
主营:
IList<Student> StudentList1 = new List<Student>{
new Student{StudentId=1,StudentName="faisal",Age=29,StandardId=1},
new Student{StudentId=2,StudentName="qais",Age=19,StandardId=2},
new Student{StudentId=3,StudentName="ali",Age=19}
};
IList<Student> StudentList2 = new List<Student>{
new Student{StudentId=1,StudentName="faisal",Age=29,StandardId=1},
new Student{StudentId=2,StudentName="qais",Age=19,StandardId=2},
};
var NewStdList = StudentList1.Intersect(StudentList2, new CompareStudent());
Console.ReadLine();
感谢编辑@Nate – 2015-02-01 05:39:36