如何对 List<T> 进行排序?通过多个 T.attributes? [英] How can I sort a List&lt;T&gt; by multiple T.attributes?

问题描述

假设我有一个歌曲列表.

Let's say I have a List of Songs.

Song {
    public string Name = "";
    public int PlayOrder = 0;
    }

现在我想先按 PlayOrder 从零开始对它们进行排序，然后按字母顺序按 Name 排序.

Now I want to sort them first by PlayOrder starting at zero and second by Name alphabetically.

因此，一组排序结果示例为 (Name, PlayOrder):

So an example set of sorted results would be (Name, PlayOrder):

/*
    Pachelbel's Canon, 0
    A Happy Song, 4
    Beethoven's 5th, 4
    Some Other Song, 7
*/

看看 PlayOrder = 4 个是如何按字母顺序排列的?这就是我要去的地方.

See how the PlayOrder = 4 ones are in order alphabetically? That's what I'm going for.

现在我只按一个字段排序:

Right now I have it only sorting by one field:

List<Song> final = new List<Song>();

...

final.Sort((x, y) => x.PlayOrder.CompareTo(y.PlayOrder));

return final;

如上所示，我如何还可以按名称排序?

How can I also sort by Name as demonstrated above?

推荐答案

return final.OrderBy(s => s.PlayOrder).ThenBy(s => s.Name);

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