c# - 如何通过嵌套的 IEnumerable 对象对 IEnumerable 对象进行排序？

Question

可能重复：
使用 LINQ 对列表中每个对象的字段进行排序

我有这个收藏：

    IEnumerable<sample> sam = new List<sample>()
    {
        new sample{ id = 1, name = "sample 1", list = new List<int>{5,6,1}},
        new sample{ id = 2, name = "sample 1", list = new List<int>{2,9}},
        new sample{ id = 3, name = "sample 1", list = new List<int>{8,3,7}},
        new sample{ id = 4, name = "sample 1", list = new List<int>{8,4,3}},
        new sample{ id = 5, name = "sample 1", list = new List<int>{5,1,7}},
        new sample{ id = 6, name = "sample 1", list = new List<int>{6,9,7}}
    };

如何使用 LINQ 对其进行排序，以便输出为：

     new sample{ id = 2, name = "sample 1", list = new List<int>{2,9}},
     new sample{ id = 5, name = "sample 1", list = new List<int>{5,1,7}},
     new sample{ id = 1, name = "sample 1", list = new List<int>{5,6,1}},
     new sample{ id = 6, name = "sample 1", list = new List<int>{6,9,7}}
     new sample{ id = 3, name = "sample 1", list = new List<int>{8,3,7}},
     new sample{ id = 4, name = "sample 1", list = new List<int>{8,4,3}},

顺便说一下，这是按“列表”排序的。

谢谢

Answer 1

sam这是按属性的第一项排序的 LINQ list（我猜这就是您所追求的，对吧？）：

IEnumerable<sample> orderedSam = sam.OrderBy(item => item.list.FirstOrDefault());