排序自定义类的列表 [英] Sorting a list of a custom class

问题描述

我正在编写一个Web应用程序.我写了一堂课

I am writing a web application. I have written a class

class person{<br />
  string FirstName = "";<br />
  int rank = 0;<br />
  int LastName = "";<br />
}

我有一个人"列表，并想按等级-IE对其进行排序.最高排名第一

例如.

假设我有一个叫bob的级别为2的人，一个叫rob的级别为4的人，还有一个叫wob的级别为1的人.

(我非常想起名字)

我想对这个列表进行排序，以便结果如下:

I have a list of "people" and want to sort them by rank - IE. highest rank first

for example.

Say I have someone called bob at a rank of 2 and someone called rob with a rank of 4 and someone called wob with a rank of 1

(I''m great with coming up with names)

I want to sort this list so the outcome would be this:

rob - 4<br />
bob - 2<br />
wob - 1

有人可以帮忙吗?

Can anyone help?

推荐答案

public class Person{
	public string FirstName {get;set;}
	public int Rank {get;set;}
	public string LastName {get;set;}
}

List<person> personList = new List<person>();
personList.Add(new Person(){ FirstName="bob", Rank=2 });
personList.Add(new Person(){ FirstName="wob", Rank=1 });
personList.Add(new Person(){ FirstName="rob", Rank=4 });

var result =  from v in (from p in personList
                         select p).OrderByDescending(x=>x.Rank)
              select new
                  {
		ResultValue = String.Format("{0} - {1}",v.FirstName,v.Rank)
	      };

这将导致

This would result

rob - 4
bob - 2
wob - 1

您困在哪里?要开始使用，可以使用IComparable< T>.界面以创建列表的自定义排序.请参考以下链接:

http://msdn.microsoft.com/en-us/library/4d7sx9hd.aspx [ ^ ]

http://addinit.com/node/50 [

Where are you stuck? To get you started, you can use the IComparable<T> interface to create custom sorting of lists. Refer to the following link:

http://msdn.microsoft.com/en-us/library/4d7sx9hd.aspx[^]

http://addinit.com/node/50[^]

Hope this helps!

List<person> ToBeSortedList ;//modify to appropriate list name

List<person> SortedbyRankPersonList = (ToBeSortedList.OrderByDescending(c => c.rank)).ToList();

谢谢，

Kuthuparakkal

Thanks,

Kuthuparakkal

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