public IActionResult AddParticipantInCase(ParticipantViewModel model) { if (ModelState.IsValid) { CaseUserDTO _newCaseUser = CreateCaseUser(model); _caseService.AddParticipant(model.CaseId, _newCaseUser); return(RedirectToAction("AboutCase", "Case", new { id = model.CaseId })); } return(PartialView(model)); }