如何使用LINQ基于startwith对字符串列表进行排序

Question

我有一个字符串列表如下所示。我想根据Start with值对名称进行排序。我尝试了一些案例，但失败了。例子列表中有像

这样的数据

name: "Bible Reading", 
name: "Scripture Reading",
name: "Ready Set", 
name: "Career Readings",
name: "Reading-Berks"

我传递queryValue为"read"，但我不能根据值排序。

IOrderedEnumerable<string> name = result.Select(x => x.name)
                                        .OrderBy(i => i.StartsWith(queryValue));

期望输出，

name: "Ready Set",
name: "Reading-Berks"
name: "Bible Reading", 
name: "Scripture Reading",
name: "Career Readings",

Answer 1

我认为这是一个区分大小写的问题。

代替

.OrderBy(i => i.StartsWith(queryValue));

.OrderByDescending(i => i.StartsWith(queryValue, StringComparison.InvariantCultureIgnoreCase));

因为"Ready Set".StartsWith("read")将返回false

Answer 2

您必须对所需的结果使用OrderByDescending和不区分大小写的比较，因此您的查询将如下所示:

IOrderedEnumerable<string> name = result.Select(x => x.name)
                                        .OrderByDescending(i =>i.StartsWith(queryValue,StringComparison.InvariantCultureIgnoreCase));

下面是一个区分OrderByDescending和OrderBy的工作示例