public async Task OnGetAsync()
 {
     await Task.Run(() =>
     {
         cdkeys        = new Dictionary <Game, IEnumerable <Code> > {
         };
         var username  = userManager.GetUserName(User);
         var thistrans = transdb.GetByUsername(username);
         foreach (var order in thistrans)
         {
             var codelist = codedb.GetCodeByOrderId(order.OrderId);
             foreach (var code in codelist)
             {
                 var game = gamedb.GetById(code.GameId);
                 if (!cdkeys.ContainsKey(game))
                 {
                     IEnumerable <Code> newlist = new List <Code> {
                         code
                     };
                     cdkeys.Add(game, newlist);
                 }
                 else
                 {
                     cdkeys[game] = cdkeys[game].Append(code);
                 }
             }
         }
     });
 }