public async Task <IActionResult> Load_file(GroupModel model) { Uri req = new Uri(Request.Headers["Referer"]); int groupId = Int32.Parse(HttpUtility.ParseQueryString(req.Query)["groupId"]); model.Id = groupId; bool isFileLoaded = await _groupLogic.LoadGroupFile(model, User.Identity.Name); if (isFileLoaded) { GroupModel group = _groupLogic.FormGroupModel(model.Id, User.Identity.Name); return(View("~/Views/Group/GroupDetails.cshtml", group)); } else { ModelState.AddModelError("error_message", "Ошибка!"); GroupModel group = _groupLogic.FormGroupModel(model.Id, User.Identity.Name); return(View("~/Views/Group/GroupDetails.cshtml", group)); } }