在LINQ中对IEnumerable进行排序

如何对给定的示例进行排序。

IEnumerable eList = new List() { new extra{ id = 1, text = "a"}, new extra{ id = 2, text = "g"}, new extra{ id = 3, text = "i"}, new extra{ id = 4, text = "e"}, new extra{ id = 5, text = "f"}, new extra{ id = 6, text = "d"}, new extra{ id = 7, text = "c"}, new extra{ id = 8, text = "h"}, new extra{ id = 9, text = "b"} }; IEnumerable sam = new List() { new sample{ id = 1, name = "sample 1", list = new List{1,5,6}}, new sample{ id = 2, name = "sample 1", list = new List{2,9}}, new sample{ id = 3, name = "sample 1", list = new List{8,3,7}}, new sample{ id = 4, name = "sample 1", list = new List{3,4,8}}, new sample{ id = 5, name = "sample 1", list = new List{1,5,7}}, new sample{ id = 6, name = "sample 1", list = new List{6,9,7}} }; 

我有这个代码来排序和加入样本列表上面的额外对象。

  var s2 = (from d1 in sam select new { name = d1.name, id = d1.id, list = ( from d2 in d1.list join e in eList on d2 equals e.id select new { id = d2, text = e.text } ).OrderBy(item => item.text.FirstOrDefault()) }); 

上面的代码工作正常，它加入了两个数据并对列表的值进行了排序。 但我想要的是’s2’以上的输出将再次按’list.text’的’list’值排序。

所以上面的可能输出必须是：

  { id = 1, name = "sample 1", list = {'a','f','d'}}, { id = 5, name = "sample 1", list = {'a','f','c'}}, { id = 2, name = "sample 1", list = {'g','b'}}, { id = 4, name = "sample 1", list = {'i','e','h'}}, { id = 6, name = "sample 1", list = {'d','b','c'}}, { id = 3, name = "sample 1", list = {'h','i','c'}}, 

这在LINQ中是否可行？

谢谢

Answer 1

 var newsam = sam.Select(s => new { id = s.id, name = s.name, list = s.list .Select(l => eList.FirstOrDefault(e => e.id == l).text) .OrderBy(e => e) .ToList() } ).OrderBy(s => s.list.FirstOrDefault()) .ToList(); 

编辑

因此，内部列表按eList的文本值排序; 外部列表按内部列表的第一个元素排序

编辑

  var s2=(from d1 in sam select new { name = d1.name, id = d1.id, list = ( from d2 in d1.list join e in eList on d2 equals e.id select e.text ).OrderBy(item => item).ToList() }).OrderBy(item => item.list.FirstOrDefault());