如何从控制器中检索值以查看 [英] how to retrieve the value from controller to view

问题描述

我正在使用asp.net MVC3.在我的控制器中，我有一个操作方法，例如:

I am using asp.net MVC3.In my controller I have an action method like:

public ActionResult ListView(int id)
        {
           ViewBag.key = id;
            return View();
        }

在视图中，如何在url
中动态传递此值 我通过了如下网址:
"/Home/GetDetails/id =" +"@ ViewBag.key"
我可以通过这种方式传递ID吗?
我收到类似参数字典包含用于方法system.web.MVC.ActionRestult ...的非空类型"System.Int32"的参数"id"的空条目的错误，您能告诉我吗?我可以通过其他任何方式将此ID动态传递给url.

In the view, how To pass this value dynamically in the url
I passed in the url like:
"/Home/GetDetails/id = " + ''@ViewBag.key''
can i pass the id in this way?
I am getting an error like"The parameters dictionary contains a null entry for parameter ''id'' of non-nullable type ''System.Int32'' for method system.web.MVC.ActionRestult... ",can u tell me any other way to pass this id dynamically to the url.

推荐答案

您需要将值转换为字符串.试试:

You need to convert the value to a string. Try :

@{= Convert.ToString(ViewBag.key) }

尽管最好创建一个辅助方法.

祝你好运！

Although it would be better to create a helper method.

Good luck!

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