public IActionResult CreateDepartment(Department department, int customerId) { if (ModelState.IsValid) { _customerService.AddCustomerDepartment(customerId, department); ViewBag.customerId = customerId; return(RedirectToAction("index", "departments")); } ViewBag.customerId = customerId; return(View("~/Views/Admin/Departments/CreateDepartment.cshtml", department)); }