public IActionResult SaveSelectionItem(SelectionItem selectionItem, string submitButton)
        {
            bool?operationResult = null;

            if (submitButton == "Continue")
            {
                operationResult = selectionService.SaveSelectionItem(selectionItem);
                return(RedirectToAction("SelectCandidate", "Selection", new { credentialID = selectionItem.CredentialID, candidateIndex = selectionItem.CandidateIndex + 1 }));
            }
            else if (submitButton == "Confirm")
            {
                operationResult = selectionService.SaveSelectionItem(selectionItem);
                return(RedirectToAction("ConfirmSelection", "Selection", new { credentialID = selectionItem.CredentialID }));
            }
            else
            {
                operationResult = selectionService.CancelSelections((int)selectionItem.CredentialID);
                return(RedirectToAction("Index", "Selection"));
            }
        }