通过按Lambda表达式降序? [英] OrderBy descending in Lambda expression?

问题描述

我知道在通常的Linq语法中，orderby xxx descending非常简单，但是如何在Lambda表达式中做到这一点?

I know in normal Linq grammar, orderby xxx descending is very easy, but how do I do this in Lambda expression?

推荐答案

正如布兰农所说，它是 ThenByDescending :

As Brannon says, it's OrderByDescending and ThenByDescending:

var query = from person in people
            orderby person.Name descending, person.Age descending
            select person.Name;

等效于:

var query = people.OrderByDescending(person => person.Name)
                  .ThenByDescending(person => person.Age)
                  .Select(person => person.Name);

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