linq 排序

更多时间：2015-4-9 类别：编程学习浏览量：1195

linq 排序

linq 排序

一、linq 排序用到的方法

方法名	说明	C# 查询表达式语法
OrderBy	按升序对值进行排序。	orderby
OrderByDescending	按降序对值进行排序。	orderby … descending
ThenBy	按升序执行次要排序。	orderby …, …
ThenByDescending	按降序执行次要排序。	orderby …, … descending

二、linq 排序实例

1、主要升序排序


  string[] words = ...{ "the", "quick", "brown", "fox", "jumps" };
  IEnumerable<string> query = from word in words orderby word.Length select word;
  foreach (string str in query) Console.WriteLine(str);

2、主要降序排序


 string[] words = ...{ "the", "quick", "brown", "fox", "jumps" };
 IEnumerable<string> query = from word in words orderby word.Substring(0, 1) descending select word;
 foreach (string str in query) Console.WriteLine(str);

3、次要升序排序


string[] words = ...{ "the", "quick", "brown", "fox", "jumps" };
IEnumerable<string> query = from word in words orderby word.Length, word.Substring(0, 1) select word;
foreach (string str in query) Console.WriteLine(str);

4、次要降序排序


  string[] words = ...{ "the", "quick", "brown", "fox", "jumps" };
  IEnumerable<string> query = from word in words orderby word.Length, word.Substring(0, 1) descending select word;
  foreach (string str in query) Console.WriteLine(str);

标签：linq

上一篇：VS中打开.ashx文件

下一篇：Linq中的TakeWhile和SkipWhile

您可能感兴趣

linq 排序

linq 排序

热门推荐

排行榜