public async Task <IActionResult> Index()
{
var user1 = await _userManager.FindByNameAsync(User.Identity.Name.ToUpper());
List <Cylinder> cylinders = new List <Cylinder>();
cylinders = _classRepository.FindCylindersAsync();
ViewBag.Cylinders = cylinders;
//var user = _classRepository.FindByConnectionIdAsync(87665.ToString());
ViewBag.user = user1;
return(View());
}