public ActionResult Index(string searchString)
{
int rez;

if ((!String.IsNullOrEmpty(searchString)) && searchString.Length == 13 && (int.TryParse(searchString.Substring(2,5), out rez)) && searchString.Substring(0, 2)=="21")
{

App_BarcodeItem a = db.Barcode.Where(b => b.Barcode == rez).FirstOrDefault(); //ToList().Count();

if (a!=null)
{
ViewBag.Massage = "Есть";
ViewBag.Desc = a.Description;
int.TryParse(searchString.Substring(7, 5), out rez);
ViewBag.Weight = rez/1000.000;
}
else
{
ViewBag.Massage = "Нету";

try
{
App_BarcodeLog bLog = new App_BarcodeLog()
{
Barcode = searchString,
UserCheck = User.Identity.Name.Replace(@"HCLASS\", ""),
DateAdd = DateTime.Now

};

db.BarcodeLog.Add(bLog);

//db.Application.Add(applicationGet);
db.SaveChanges();
//return RedirectToAction("Index");


}
catch (RetryLimitExceededException /* dex */)
{
//Log the error (uncomment dex variable name and add a line here to write a log.)
ModelState.AddModelError("NotValid", "Невозможно сохранить. Попробуйте снова, если проблема повторится, напишите на Problems.");
}

}

return View();
}

ViewBag.Massage = "Некорректные данные";

return View();

}