本文介绍了MVC 5 asp.net,从控制器到视图的视图包不起作用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是控制器
public ActionResult Test() {
@ViewBag.TheMessageIs = "this is the message";
return RedirectToAction("Details", new { id = theId});
}
在名为详细信息的操作的视图上,我将检查它是否具有要显示的ViewBag并将其显示:
on the view of Action Named Details I will check if it has the ViewBag to show and show it:
@{
if(ViewBag.TheMessageIs != null){
@ViewBag.TheMessageIs
}
}
但是这里重定向到页面工作正常,它没有显示我存储在ViewBag.TheMessageIs中的消息
but here the redirection is working fine to the page, it's not show the message I have stored in ViewBag.TheMessageIs
谢谢
推荐答案
public ActionResult Test() {
TempData["shortMessage"] = "MyMessage";
return RedirectToAction("Details", new { id = theId});
}
public ActionResult Details {
//now I can populate my ViewBag (if I want to) with the TempData["shortMessage"] content
ViewBag.TheMessageIs = TempData["shortMessage"].ToString();
return View();
}
您必须这样做,因为当您重定向到另一个活动/视图时,视图包会失去其值
You have to do it like this since the viewbag looses its value when you redirect to another active / view
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