在我的控制器中的索引操作中,我有:
public ActionResult Index(string sortOrder) { var model; ViewBag.CitySortParm = String.IsNullOrEmpty(sortOrder) ? "City_desc" : ""; switch (sortOrder) { case "City_desc": model = this.UnitOfWork.AddressRepository.Get().OrderBy(a => a.City); break; } return View(model); }
这不起作用,我总是得到错误: Implicitly-typed local variables must be initialized
为什么这不起作用,我该如何解决这个问题呢?