private object PopulateDictionary(IWrappedDictionary dictionary, JsonReader reader, JsonDictionaryContract contract, string id)
    {
      if (id != null)
        Serializer.ReferenceResolver.AddReference(this, id, dictionary.UnderlyingDictionary);

      contract.InvokeOnDeserializing(dictionary.UnderlyingDictionary, Serializer.Context);

      int initialDepth = reader.Depth;

      do
      {
        switch (reader.TokenType)
        {
          case JsonToken.PropertyName:
            object keyValue = reader.Value;
            try
            {
              try
              {
                keyValue = EnsureType(keyValue, CultureInfo.InvariantCulture, contract.DictionaryKeyType);
              }
              catch (Exception ex)
              {
                throw new JsonSerializationException("Could not convert string '{0}' to dictionary key type '{1}'. Create a TypeConverter to convert from the string to the key type object.".FormatWith(CultureInfo.InvariantCulture, reader.Value, contract.DictionaryKeyType), ex);
              }

              if (!ReadForType(reader, contract.DictionaryValueType, null))
                throw new JsonSerializationException("Unexpected end when deserializing object.");

              dictionary[keyValue] = CreateValueNonProperty(reader, contract.DictionaryValueType, GetContractSafe(contract.DictionaryValueType));
            }
            catch (Exception ex)
            {
              if (IsErrorHandled(dictionary, contract, keyValue, ex))
                HandleError(reader, initialDepth);
              else
                throw;
            }
            break;
          case JsonToken.Comment:
            break;
          case JsonToken.EndObject:
            contract.InvokeOnDeserialized(dictionary.UnderlyingDictionary, Serializer.Context);

            return dictionary.UnderlyingDictionary;
          default:
            throw new JsonSerializationException("Unexpected token when deserializing object: " + reader.TokenType);
        }
      } while (reader.Read());

      throw new JsonSerializationException("Unexpected end when deserializing object.");
    }