public async Task <IActionResult> Detail(string id) { var userId = await _userManager.FindByNameAsync(User.Identity.Name); int user = userId.Id; var veri = _tasksManager.GetDetailTask(id, user); Tasks bitistarihi = new Tasks(); foreach (var item in veri) { bitistarihi.FinishDate = item.FinishDate; } var a = bitistarihi.FinishDate.ToString("dd MM yyyy"); var kalansure = Convert.ToDateTime(a) - DateTime.Now.Date; var gun = kalansure.TotalDays; ViewBag.kalangun = gun; ViewBag.detail = veri; return(View()); }