如何在linq查询中应用多个orderby

Question

我希望在多个列上应用order by升序,而其他列在LINQ中按降序排列.我怎样才能做到这一点？

Answer 1

var sortedCollection =
    from item in collection
    orderby item.Property1, item.Property2 descending, item.Property3
    select item;

Answer 2

借用101 LINQ样本:

orderby p.Category, p.UnitPrice descending

或作为Lambda:

products.OrderBy(p => p.Category).ThenByDescending(p => p.UnitPrice); 

Answer 3

Steven的答案可行,但我更喜欢方法链接到声明性LINQ语法,例如

collection
    .OrderBy(e => e.Property1)
    .ThenByDescending(e => e.Property2)
    .ThenBy(e => e.Property3)