public ResultInfo.Result Delete(long valueID, string createdBy)
 {
     ResultInfo.Result result = ResultInfo.GenerateErrorResult();
     try
     {
         db.ThingPropertyValueDelete(valueID);
         result = ResultInfo.GenerateOKResult("Deleted");
     }
     catch (Exception ex)
     {
         result = ResultInfo.GenerateErrorResult(ex.Message);
     }
     return(result);
 }