入门HTML在MVC3视图渲染 [英] Getting HTML Rendered by a View in MVC3

问题描述

在我MVC3应用程序，我通过创建一个新的控制器和调用像方法指数（）测试的东西，和存储所产生的的ViewResult 插入一个名为变量结果。

In my MVC3 app, I'm testing stuff by creating a new controller and invoking methods like Index(), and storing the resulting ViewResult into a variable called result.

我怎么能捅这个对象（或别的东西），以获得实际的HTML返回给浏览器？

How can I poke this object (or something else) to get the actual HTML returned to the browser?

我很惊讶的是， result.ViewName 为空， result.Model 为空， result.View 为空，甚至 result.TempData 是空的。 （ result.ViewBag 拥有的东西，我把在viewbag，所以我知道整个堆栈是否正常工作。）

I am surprised that result.ViewName is empty, result.Model is null, result.View is null, and even result.TempData is empty. (result.ViewBag has stuff I put in the viewbag, so I know the whole stack is working properly.)

如果它的事项，我使用的是Visual Studio的测试，与NHibernate / ActiveRecord的沿着我的筹码。但是，所有这一切都在我的测试项目初始化正确。 （我可以从实体/对象的数据。）

If it matters, I'm using the Visual Studio testing, along with NHibernate/ActiveRecord for my stack. But all that is initializing correctly in my test project. (I can get data from entities/objects.)

推荐答案

这是我用它来创建HTML格式的电子邮件的东西，但也可能在你的情况下使用为好，视图结果的HTML输出为一个字符串。

This is something that I use to create HTML emails, but could possibly be used in your case as well, outputs the HTML of a view result into a string.

public static string RenderViewToString(Controller controller, string viewName, object model)
{
    controller.ViewData.Model = model;
    try
    {
        using (StringWriter sw = new StringWriter())
        {
            ViewEngineResult viewResult = ViewEngines.Engines.FindView(controller.ControllerContext, viewName, null);
            ViewContext viewContext = new ViewContext(controller.ControllerContext, viewResult.View, controller.ViewData, controller.TempData, sw);
            viewResult.View.Render(viewContext, sw);
            viewResult.ViewEngine.ReleaseView(controller.ControllerContext, viewResult.View);

            return sw.ToString();
        }
    }
    catch (Exception ex)
    {
        return ex.ToString();
    }
}

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