如何排序这个内容？ [英] How to sort this content?

问题描述

您好我是LINQ的新人，我有一项任务可以对内容可能存储的内容进行排序。

Hi I am new one to LINQ, I have one task to sort the content the content may stored like this

list1(1909-1930,1921-1925,1907–21,1871–1924,2009-10,456–458,58–66)

如何排序如下

how to sort this like

58–66
456–458
1871–1924
1907–21
1909-1930
1921-1925

任何人给出解释如何解决

any one give explanation how to solve it

推荐答案

具体如何操作将取决于它们的存储方式。

如果这些是字符串，那么它有点复杂，但它仍然可能。假设你想要数字顺序，首先到1900年，然后到1930年：

Exactly how you do this will depend on how they are stored.
If those are strings, then it's a little complicated, but it is still possible. Assuming that you want numerical order, first by 1900, then by 1930:

List<string> list1 = new List<string>() {"1909-1930","1921-1925","1907-21","1871-1924","2009-10","456-458","58-66"};
list1 = list1.OrderBy(s => int.Parse(s.Substring(0, s.IndexOf('-'))))
             .ThenBy(s => int.Parse(s.Substring(s.IndexOf('-'))))
             .ToList();

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