使用foreach枚举内部字典

Question

我有一本字典词典,我似乎无法弄清楚如何在内部字典中进行foreach循环.

我的收藏:

Dictionary<int, Dictionary<int, User>>

到目前为止,我有:

foreach(User user in myDic[someKey]??)

Answer 1

嵌套的foreach

foreach (var keyValue in myDic){
   foreach (var user in keyValue.Value){
     ....
   }
}

或者一点点linq

        foreach (User User in myDic.SelectMany(i => i.Value).Select(kv=>kv.Value))
        {

        }  

按UserName排序

        foreach (User User in myDic.SelectMany(i => i.Value)
                                   .Select(kv=>kv.Value)
                                   .OrderBy(u=>u.UserName))
        {

        }