从C＃.net中的字典中检索字典

Question

我有这样的字典

{
  "A" : {
    "A1" : {
      "er" : false,
       "hy" : false,
       "fv" : false,
       "fr" : false
          },
     "A2" : {
       "fr" : false,
       "ty" : false,
       "ty" : false,
          },
   "B" : {
     "B1" : {
       "er" : false,
       "hy" : false,
       "fv" : false,
       "fr" : false
         },
     "B2" : {
      "fr" : false,
      "ty" : false,
      "ty" : false,
   },
  }
}

我正在尝试将A1和A2字典的值检索为单独的词典

我试过了

 Dictionary<string, Dictionary<string, object>> dict =
 jss.Deserialize<Dictionary<string, Dictionary<string, object>>>json.ToString());

       Dictionary<string, object> dict1 = dict["A"];

 Dictionary<string, object> dict2 = dict1["A1"];//error here

无法将类型'object'隐式转换为'System.Collections.Generic.Dictionary'。存在显式转换（您是否错过了演员？）

如何解决这个问题？

Answer 1

我认为这会解决它：

Dictionary<string, object> dict2 = (Dictionary<string, object>) dict1["A1"];