MVC RedirectToAction 的奇怪行为

Question

我有以下 UserController 方法：

public ActionResult DeleteThread(int RootMessageID)
{
    _repository.DeleteMessageThread(RootMessageID);
    return RedirectToAction("ActionMessageSuccess", new { txt = "Message was sent successfully" });
}
    public ActionResult ActionMessageSuccess(string txt)
    {
        return View(txt);
    }

有 cshtml 页面（在 Views\User 中）：

@model System.String
@{
    ViewBag.Title = "SendMessageSuccess";
    Layout = "~/Views/Shared/_LayoutUser.cshtml";
}

<h2>@Model</h2>

但我得到：

The view 'Message was sent successfully' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/User/Message was sent successfully.aspx
~/Views/User/Message was sent successfully.ascx
~/Views/Shared/Message was sent successfully.aspx
~/Views/Shared/Message was sent successfully.ascx
~/Views/User/Message was sent successfully.cshtml
~/Views/User/Message was sent successfully.vbhtml
~/Views/Shared/Message was sent successfully.cshtml
~/Views/Shared/Message was sent successfully.vbhtml

在调用 DeleteThread 之后。为什么？

Answer 1

使用redirectToAction没有问题。

您正在调用 RedirectToAction("ActionMessageSuccess", new { txt = "Message was sent successfully" });

因此它重定向到具有 txt 值的操作 ActionMessageSuccess。

在 ActionMessageSuccess 中，您将返回一个名为 txt 的视图，即“消息已成功发送”，但系统无法归档名为“消息已成功发送”的视图。