public static Mdata FindData(String json)
{
Mdata deserializedData = new Mdata();
MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json));
DataContractJsonSerializer ser = new DataContractJsonSerializer(deserializedData.GetType());
deserializedData = ser.ReadObject(ms) as Mdata;
ms.Close();
return(deserializedData);
}