我在哪里把“orderby group.key”放在这个LINQ语句中？

Question

验证码：

string[] words = {"car", "boy", "apple", "bill", "crow", "brown"}; 

var groups = from w in words 
    group w by w[0] into g 
    select new {FirstLetter = g.Key, Words = g}; 
    //orderby ???; 

var wordList = groups.ToList(); 
//var wordList = groups.ToList().OrderBy(???); 

wordList.ForEach(group => 
    { 
     Console.WriteLine("Words that being with {0}:", 
        group.FirstLetter.ToString().ToUpper()); 
     foreach(var word in group.Words) 
      Console.WriteLine(" " + word); 
    }); 

输出这样：

Words that being with C: 
    car 
    crow 
Words that being with B: 
    boy 
    bill 
    brown 
Words that being with A: 
    apple 

但我在哪里把排序依据语句，以便它以字母顺序列出了呢？

Answer 1

我假设你想订购组内的单词和？试试这个：

var groups = from w in words 
    group w by w[0] into g 
    select new { FirstLetter = g.Key, Words = g.OrderBy(x => x) }; 

var wordList = groups.OrderBy(x => x.FirstLetter).ToList(); 

或：

var groups = from w in words 
    group w by w[0] into g 
    orderby g.Key 
    select new { FirstLetter = g.Key, Words = g.OrderBy(x => x) }; 

var wordList = groups.ToList(); 

（第二种形式是什么原本在我的回答我，除了我列入“排序依据”空间造成编译失败我不知道为什么这是DOH）

当然，你可以做整个事情在一个点符号声明过：！

var wordList = words.GroupBy(word => word[0]) 
         .OrderBy(group => group.Key) 
         .Select(group => new { FirstLetter = group.Key, 
               Words = group.OrderBy(x => x) }) 
         .ToList(); 

Answer 2

种两个选择：

var groups = from w in words 
    group w by w[0] into g 
    orderby g.Key 
    select new {FirstLetter = g.Key, Words = g}; 

或使用into并重新选择：

var groups = from w in words 
      group w by w[0] into g 
      select new { FirstLetter = g.Key, Words = g } into grp 
      orderby grp.FirstLetter 
      select grp;