C# model-view-controller spark-view-engine

在渲染时动态选择 Spark Master 布局

发布于 2025-01-01 22:59:32 字数 703 浏览 3 评论 0原文

每次发出页面请求时，我都需要选择 Spark Master 布局。我尝试通过在 OnActionExecuting 中设置 ViewBag.Layout 值并在主布局引用中引用该值来实现此目的。

<use master="${ViewBag.Layout}"/>

但是，这不起作用，似乎 Spark 没有将括号内的代码视为代码，而是视为字符串。我收到以下错误：

The view 'Index' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/Home/Index.aspx
~/Views/Home/Index.ascx
~/Views/Shared/Index.aspx
~/Views/Shared/Index.ascx
~/Views/Home/Index.cshtml
~/Views/Home/Index.vbhtml
~/Views/Shared/Index.cshtml
~/Views/Shared/Index.vbhtml
Layouts\${ViewBag.Layout}.spark
Shared\${ViewBag.Layout}.spark

任何人都可以告诉我这是为什么吗？或者指出我有另一种方法可以做到这一点？

原文

I need to choose my spark master layout every time a request for a page is made. I attempted to so this by setting a ViewBag.Layout value in OnActionExecutingand referencing this value in the master layout ref.

<use master="${ViewBag.Layout}"/>

However, this doesn't work, it seems as if spark is not treating the code within the brackets not as code, but as a string. I get the following error:

The view 'Index' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/Home/Index.aspx
~/Views/Home/Index.ascx
~/Views/Shared/Index.aspx
~/Views/Shared/Index.ascx
~/Views/Home/Index.cshtml
~/Views/Home/Index.vbhtml
~/Views/Shared/Index.cshtml
~/Views/Shared/Index.vbhtml
Layouts\${ViewBag.Layout}.spark
Shared\${ViewBag.Layout}.spark

Can anyone tell me why this is? Or point me to an alternative way of doing this?

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巷雨优美回忆 2025-01-08 22:59:32

无法使用代码语法动态选择布局。其原因是该布局是在引擎中进行任何渲染之前选择的。因此，首先定位布局，然后引擎尝试将所有变量渲染到位。对布局使用变量意味着渲染引擎不知道要打开哪个文件。

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梦里梦着梦中梦 2025-01-08 22:59:32

实际上。这是可能的..而不是使用代码示例。使用结果过滤器。

public void OnResultExecuting(ResultExecutingContext filterContext) {
        var viewResult = filterContext.Result as ViewResult;
        if (viewResult == null)
            return;

        var layoutFile = viewResult.ViewBag.Layout; //the variable you set in your action executing,

        viewResult.MasterName = layoutFile;

    }

Actually. it is possible.. Instead of using the code example. Use a ResultFilter.

public void OnResultExecuting(ResultExecutingContext filterContext) {
        var viewResult = filterContext.Result as ViewResult;
        if (viewResult == null)
            return;

        var layoutFile = viewResult.ViewBag.Layout; //the variable you set in your action executing,

        viewResult.MasterName = layoutFile;

    }

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