從字典和隨機項目列表中挑選隨機列表並將其顯示在textBlock中？

Question

這裏是我的代碼：

var dict = new Dictionary<string, List<string>> 
         { 
          {"AR", new List<string> {"M4A1", "M16A4", "SCAR-L", "CM901", "TYPE 95", "G36C","ACR 6", "MK14", "AK-47", "FAD"} }, 
          {"SM", new List<string> {"MP5","UMP45","PP90M1","P90","PM-9","MP7"}}, 
          {"LM", new List<string>{"L86 LSW","MG36", "PKP PECHENEG","MK46","M60E4"}}, 
          {"SR", new List<string>{"BARRET .50 CAL","L118A","DRAGUNOV","AS50","RSASS","MSR"}}, 
          {"SG", new List<string>{"USA512","KS612","SPAS-12","AA-12","STRIKER","MODEL 1887"}}, 
          {"RS", new List<string>{"RIOT SHIELD"}} 


         }; 

我想有一個隨機的項目進行隨機名單在一個文本框這個字典輸出。謝謝，任何幫助表示讚賞！另外，如果使Windows Phone 7與衆不同，我正在開發Windows Phone 7。

Answer 1

從這裏：Random entry from dictionary

有一個更有效的方法來隨機化字典一次，使其可供選擇：

public IEnumerable<TValue> RandomValues<TKey, TValue>(IDictionary<TKey, TValue> dict) 
{ 
    Random rand = new Random(); 
    List<TValue> values = Enumerable.ToList(dict.Values); 
    int size = dict.Count - 1; 
    while(true) 
    { 
     yield return values[rand.Next(size)]; 
    } 
} 

然後：

var rand = new Random(); 
var randomDict = RandomValues(dict); 
var randList = randomDict.First(); 
var randVal = randList[rand.Next(randList.Count - 1)]; 

Answer 2

var rand = new Random(); 

var randList = dict.Values[rand.Next(dict.Count - 1)]; 
var randomWord = randList[rand.Next(randList.Count - 1)];