RedirectToAction MVC2的问题不能隐式地转换type 'System.Web.Mvc。RedirectToRouteResult”“System.Web.Mvc.ViewResult”

I am receiving this error when trying to use RedirectToAction, can anyone offer any advice on why this could be occuring, ive used this before without any problems, i must be missing something.

当我尝试使用RedirectToAction时，我收到了这个错误，有人能给我建议为什么会发生这种情况吗?

Cannot implicitly convert type 'System.Web.Mvc.RedirectToRouteResult' to 'System.Web.Mvc.ViewResult'

不能隐式转换type 'System.Web.Mvc。RedirectToRouteResult”“System.Web.Mvc.ViewResult”

 [HttpPost]
    public ViewResult Edit(Customer customer)
    {
        if (ModelState.IsValid)
        {
            customersRepository.SaveCustomer(customer);
            TempData["message"] = customer.CustomerName + " has been saved.";
            return RedirectToAction("Index");
        }

        else //validation error, so redisplay the same view
            return View(customer);

    }

Regards

问候

Liam

利亚姆

1 个解决方案

#1

Try changing public ViewResult Edit(Customer customer) to public ActionResult Edit(Customer customer)

尝试将public ViewResult编辑(Customer)更改为public ActionResult编辑(Customer)

ViewResult is derived from ActionResult and can only return Views. Since your code can return a View or a Redirect, you should use an ActionResult. See this answer for more information.

ViewResult派生自ActionResult，只能返回视图。因为代码可以返回视图或重定向，所以应该使用ActionResult。有关更多信息，请参见此答案。

#1