C#排序 轉

本文連接：https://blog.csdn.net/fysuccess/article/details/36416255
C#中List<T>排序的兩種方法



List<Student> stu = (List<Student>)Session["StudentList"];



Linq表達式:
//按學號降序
List<Student> stuList = (from s instu orderby s.stuNOdescending select s).ToList<Student>();

//按學號升序
List<Student> stuList = (from s instu orderby s.stuNO  select s).ToList<Student>();


使用Lambda表達式排序:
//按學號降序
單字段：List<Student> stuList= stu.OrderByDescending(s=> s.orderid).ToList<Student>();
多字段：List<Student> stuList= stu.OrderByDescending(s=> new{s.stuNO,s.stuName}).ToList<Student>();

//按學號升序
單字段：List<Student> stuList= stu.OrderBy(s=> s.stuNO).ToList<Student>();
多字段：List<Student> stuList= stu.OrderBy(s=> new{s.stuNO,s.stuName}).ToList<Student>();


多字段主次順序排序狀況，先按no排序，再按name排序
List<Student> stuList= stu.OrderBy(s=> s.stuNO).ThenBy(s=> s.stuName).ToList<Student>();

List<Student> stuList= stu.OrderBy(s=> new{ s.stuNO }).ThenBy(s=> new{s.stuName}).ToList<Student>();
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原文連接：https://blog.csdn.net/fysuccess/article/details/36416255