Question

我有一个MVC4应用程序，目前使用一个区域（除了正常位置）。通常情况下，我的路由一切正常，但我现在需要在“根”位置找到一个位于该区域内的局部视图。

我的解决方案文件的相关部分是：

/Areas
/Areas/Admin
/Areas/Admin/Views
/Areas/Admin/Views/Shared/_adminPartialView.cshtml
/Views
/Views/Shared/_rootPartialView.cshtml

我的失败代码是：

var viewEngine = new RazorViewEngine();
var cContext = new ControllerContext(context, new RouteData(), new EmptyController());

// this works:
var rootView = viewEngine.FindPartialView(cContext, "_rootPartialView", false);
if (rootView == null) { throw new Exception("Root view not found"); }

// this throws my error:
var adminView = viewEngine.FindPartialView(cContext, "_adminPartialView", false);
if (adminView == null) { throw new Exception("Admin view not found"); }

（上面context间接来自HttpContext.Current）

...这是有道理的，如果没有指定区域，则不应搜索管理区域...但是当我将上面的viewEngine更改为 = new AdminRazorViewEngine();时，其定义为：

public class AdminRazorViewEngine : RazorViewEngine {
    public AdminRazorViewEngine() {
        var viewLocations = new [] {
            "~/Areas/Admin/Views/{1}/{0}.cshtml",
            "~/Areas/Admin/Views/Shared/{0}.cshtml"
        };
        base.ViewLocationFormats = viewLocations.Concat(base.ViewLocationFormats).ToArray();
    }
}

我仍然得到相同的结果。

如果我将_adminPartialView.cshtml复制到/Views/Shared/，则可以使用任一视图引擎正确找到两个视图。

我还尝试创建一个实际的RouteData对象，在其上指定Area，并在构造我的ControllerContext时使用它：

var routeData = new RouteData();
routeDate.Values.Add("area", "Admin");
// ...
var cContext = new ControllerContext(context, routeData, new EmptyController());

行为没有变化。

如何明确指定要搜索的视图引擎的区域？

Answer 1

尝试设置AreaViewLocationFormats而不是ViewLocationFormats

以下是来自ILSpy的代码RazorViewEngine

    public RazorViewEngine(IViewPageActivator viewPageActivator) : base(viewPageActivator)
    {
        base.AreaViewLocationFormats = new string[]
        {
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/{1}/{0}.vbhtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.vbhtml"
        };
        base.AreaMasterLocationFormats = new string[]
        {
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/{1}/{0}.vbhtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.vbhtml"
        };
        base.AreaPartialViewLocationFormats = new string[]
        {
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/{1}/{0}.vbhtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.vbhtml"
        };
        base.ViewLocationFormats = new string[]
        {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml",
            "~/Views/Shared/{0}.vbhtml"
        };
        base.MasterLocationFormats = new string[]
        {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml",
            "~/Views/Shared/{0}.vbhtml"
        };
        base.PartialViewLocationFormats = new string[]
        {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml",
            "~/Views/Shared/{0}.vbhtml"
        };
        base.FileExtensions = new string[]
        {
            "cshtml",
            "vbhtml"
        };
    }

指定区域以搜索视图

1 个答案: