public async Task <IActionResult> Edit(int id, [Bind("Id,NationalityId,MissionId,CountryOpsId,UnitOpsId")] NationalityMap nationalityMap)
        {
            if (id != nationalityMap.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(nationalityMap);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!NationalityMapExists(nationalityMap.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            ViewData["CountryOpsId"]  = new SelectList(_context.CountryOfOperation, "Id", "Name", nationalityMap.CountryOpsId);
            ViewData["MissionId"]     = new SelectList(_context.Mission, "Id", "Name", nationalityMap.MissionId);
            ViewData["NationalityId"] = new SelectList(_context.Country, "Id", "Nationality", nationalityMap.NationalityId);
            ViewData["UnitOpsId"]     = new SelectList(_context.UnitOps, "Id", "Name", nationalityMap.UnitOpsId);
            return(View(nationalityMap));
        }
        public async Task <IActionResult> Create([Bind("Id,NationalityId,MissionId,CountryOpsId,UnitOpsId")] NationalityMap nationalityMap)
        {
            if (ModelState.IsValid)
            {
                _context.Add(nationalityMap);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            ViewData["CountryOpsId"]  = new SelectList(_context.CountryOfOperation, "Id", "Name", nationalityMap.CountryOpsId);
            ViewData["MissionId"]     = new SelectList(_context.Mission, "Id", "Name", nationalityMap.MissionId);
            ViewData["NationalityId"] = new SelectList(_context.Country, "Id", "Nationality", nationalityMap.NationalityId);
            ViewData["UnitOpsId"]     = new SelectList(_context.UnitOps, "Id", "Name", nationalityMap.UnitOpsId);
            return(View(nationalityMap));
        }