public void resetCard()
 {
     id = "";
     if (!string.IsNullOrEmpty(CardId))
     {
         string[] s = CardId.Split(' ');
         for (int i = s.Length - 1; i >= 1; i--)
         {
             id += s[i].ToString();
         }
         id = Convert.ToInt32(id, 16).ToString();
     }
 }