public HttpResponseMessage RetailerChangePass(tblRetailer retailer)
 {
     try
     {
         var changepass = db.proc_Changepass(retailer.retaileremail, retailer.retailerpassword);
         return(Request.CreateResponse(HttpStatusCode.OK, "valid"));
     }
     catch (Exception e)
     {
         return(Request.CreateResponse(HttpStatusCode.OK, "invalid"));
     }
 }