呼吁JsonResult @ Html.Action改变父模板我响应类型

本文介绍了呼吁JsonResult @ Html.Action改变父模板我响应类型的处理方法，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

我有以下控制器：

公共类的HelloController{    公众的ActionResult指数（）    {        返回查看（）    }    公众的ActionResult你好（）    {        返回JSON（新{=问候你好，世界！}，JsonRequestBehavior.AllowGet）;    }}

然后，在 Index.cshtml ：

... HTML东西＆LT;脚本类型=文/ JavaScript的＆GT;    警报（@ Html.Action（你好））;＆LT; / SCRIPT＆GT;

什么我发现是，在我的浏览器去这个网址时，响应内容类型为应用程序/ JSON的;字符集= UTF-8 这会导致浏览器呈现HTML作为字符串而不是作为...网页。

什么是解决这个问题的最好方法？

解决方案

之所以这是所有 Html.Action 调用是直接执行。是这样的：

索引被称为

执行中查看结果

您好被执行的动作，设定的ContextType

索引视图结果返回

浏览器显示的页面

您有两个选择：

打破了产生逻辑世界，你好！成常规的C＃类，并在索引控制器动作直接调用它

加载通过AJAX的Hello操作，然后显示警报。

选项1

公共类的HelloController{    YourBusiness _yb;    公共HelloController中（YourBusiness YB）    {        _yb = YB;    }    公众的ActionResult指数（）    {        返回查看（yb.GenerateHello（））    }    //用于一切，但指数    公众的ActionResult你好（）    {        返回JSON（新{问候= yb.GenerateHello（）}，JsonRequestBehavior.AllowGet）;    }}公共类YourBusiness{    公共字符串GenerateHello（）    {        返回你好世界国际！;    }}

选项2

＆LT;脚本类型=文/ JavaScript的＆GT;    $获得（@ Url.Action（你好）'，函数（响应）{        警报（response.greeting）;    }＆LT; / SCRIPT＆GT;

边注

Internet Explorer中相当积极，当涉及到缓存。该JSON响应将被改变。因此，我建议你也指定没有缓存为JSON动作：

[的OutputCache（持续时间= 0，NoStore = TRUE）]公众的ActionResult你好（）{    返回JSON（新{=问候你好，世界！}，JsonRequestBehavior.AllowGet）;}

I've got the following controller:

public class HelloController { public ActionResult Index() { return View() } public ActionResult Hello() { return Json(new{ greeting = "hello, world!" }, JsonRequestBehavior.AllowGet); } }

Then, inside Index.cshtml:

...html stuffs <script type="text/javascript"> alert("@Html.Action("Hello")"); </script>

What I'm finding is that, when going to this url in my browser, the response content type is application/json; charset=utf-8 which causes the browser to render the html as a string instead of as... a web page.

What's the best way to get around this?

解决方案

The reason to this is that all Html.Action invocations are executed directly. Something like:

Index is called

View result is executed

Hello action is executed, set's ContextType

Index view result is returned

Browser displays the page

You got two options:

Break out the logic which generates "Hello world!" into a regular C# class and invoke it directly in the Index controller action

Load the Hello action through ajax and then display the alert.

Option 1

public class HelloController { YourBusiness _yb; public HelloController(YourBusiness yb) { _yb = yb; } public ActionResult Index() { return View(yb.GenerateHello()) } // used for everything but Index public ActionResult Hello() { return Json(new{ greeting = yb.GenerateHello() }, JsonRequestBehavior.AllowGet); } } public class YourBusiness { public string GenerateHello() { return "Hello wolrd!"; } }

Option 2

<script type="text/javascript"> $.get('@Url.Action("Hello")', function(response) { alert(response.greeting); } </script>

Side note

Internet Explorer is quite aggressive when it comes to caching. The JSON responses will be changed. I therefore recommend that you also specify no cache for the JSON action:

[OutputCache(Duration = 0, NoStore = true)] public ActionResult Hello() { return Json(new{ greeting = "hello, world!" }, JsonRequestBehavior.AllowGet); }