搜索<T>

Question

让我们有这样的代码：

class student :IComparable , IComparable<student> 
{ 
    public string name = ""; 

    public override string ToString() 
    { 
     return name; 
    } 

    #region IComparable Members 

    public int CompareTo(object obj) 
    { 
     if (this.name.Equals(((student)obj).name)) 
      return 0 ; 
     else 
      return -1 ; 
    } 

    #endregion 

    #region IComparable<student> Members 

    public int CompareTo(student other) 
    { 
     if (this.name.Equals (other.name)) 
      return 0 ; 
     else 
      return -1 ; 
    } 

    #endregion 
} 

我是从这个类中主要像创建的LinkedList：

LinkedList<student> list = new LinkedList<student>(); 
list.AddLast(new student { name="Farah"}); 
list.AddLast(new student { name="Noor"}); 
list.AddLast(new student { name="Reem"}); 

foreach (student s in list) 
{ 
    Console.WriteLine(s); 
} 

它的打印： 法拉 努尔 REEM

但是当我尝试搜索任何元素时，它找不到它，如：

Console.WriteLine(list.Contains(new student{ name="Noor"})); 

This Print false虽然“学生”类实现了“IComparable，IComparable”！

我应该怎么做？

Answer 1

问题：Contains不能用于IComparable接口。它使用Equals方法。 SO覆盖它：

public override bool Equals(object obj) 
    { 
     return this.CompareTo(((IComparable)obj)) == 0; 
    } 

Answer 2

实现你的学生类Equals和GetHashCode。

• Guidelines for Implementing Equals and the Equality Operator (==)