public IActionResult Index(string name = null)
{
var stoklar = repo.GetStoklar();
ViewBag.Stoklar = stoklar;
var musteriler = repo.GetMusteriler();
ViewBag.Musteriler = musteriler;
var personeller = repo.GetPersoneller();
ViewBag.Personeller = personeller;
var urunler = repo.GetUrunler();
ViewBag.Urunler = urunler;
var satis = repo.GetSatisByFilter(name);
ViewBag.Name = name;
return(View(satis));
}