Parsing Facebook graph JSON

Hi mates,

I'm trying to retrieve Facebook's friend scores using prime31 Social Plugin and have a problem deserializing a numeric value. I only want to save the retrieved numeric scores but keep getting problems. I can deserialize the strings, but keep getting errors when trying to deserialize the numeric "score" values.

I get this error in this line: double score = (((IDictionary) ht)["score"]); InvalidCastException: Cannot cast from source type to destination type.

How should I do to store the score variable? I have tried all I could imagine..., please give me some tips.

Thanks in advance!

This is my json structure.

 {
   "data": [
     {
       "user": {
         "name": "Jaume", 
         "id": "709353319"
       }, 
       "score": 20, 
       "application": {
         "name": "MiniBasket", 
         "namespace": "minibasket", 
         "id": "572013964869884"
       }
     }, 
     {
       "user": {
         "name": "Jordi", 
         "id": "639588441"
       }, 
       "score": 0, 
       "application": {
         "name": "MiniBasket", 
         "namespace": "minibasket", 
         "id": "572013964869884"
       }
     }
   ]
 }

And here is my OnLeaderboardComplete method.

 void OnLeaderboardComplete( string error, object result ) {
     
     Debug.Log("Facebook >> OnLeaderboardComplete");
     Debug.Log(" >>> result: " + result);
     Prime31.Utils.logObject( result );
                     
     var scoreResults = result as IDictionary;
     var list = scoreResults["data"] as IList;
     
     userListNames = new List<string>();
     userListScores =  new List<double>();
     
     leaderboardTotal = list.Count;
     leaderboardCount = 0;
     
     for(int i = 0; i < list.Count; i++)
     {
         var ht = list[i] as IDictionary;
         var user = ht["user"] as IDictionary;
          
                     
         double score = (((IDictionary<string, double>) ht)["score"]);            
         string id = user["id"] as string;
         string name = user["name"] as string;
         name = name.Split(' ')[0] as string;
         
         if (currentId.ToString() == id) name += " (me)";
         
         Debug.Log("id: " + id + " , name: " + name + " , score: " + score);
                 
         // store stuff
         userListNames.Add(name);
         userListScores.Add(score);    
     }
 }