private async void AddTableType(object obj)
 {
     TableRepo.UndoChanges(Tables.ToList());
     TableTypeRepo.UndoChanges(TableTypes.ToList());
     TableTypeRepo.Add(TableType);
     UpdateTableTypeList();
     await DialogOperations.DisplayInformationMessage("Masa Tipi Eklendi", "TableDialog");
 }
 private async void AddTable(object obj)
 {
     TableRepo.UndoChanges(Tables.ToList());
     TableTypeRepo.UndoChanges(TableTypes.ToList());
     SelectedTable = TableRepo.Add(new Masa()
     {
         Ad          = SelectedTable.Ad,
         MasaTipiKod = SelectedTable.MasaTipiKod,
         AcikKapali  = false
     });
     UpdateTableList();
     await DialogOperations.DisplayInformationMessage("Masa Eklendi", "TableDialog");
 }