public HttpResponseMessage ClearCacheAllKeys()
 {
     try
     {
         CacheHelper cache = new CacheHelper();
         string      json  = (string)cache.ClearCacheAllKeys();
         if (json == "OK")
         {
             return(Request.CreateResponse(HttpStatusCode.OK, "Cache Cleared Successfully!!!"));
         }
         else
         {
             return(Request.CreateResponse(HttpStatusCode.OK, CommonResult.GetErrorResult("Failed to Clear Cache!!!!")));
         }
     }
     catch (Exception ex)
     {
         return(Request.CreateResponse(HttpStatusCode.OK, CommonResult.GetErrorResult(ex.Message)));
     }
 }