Make ASP.NET MVC 3 Razor View Engine ignore .vbhtml files

Question

How can I remove the VB Razor Engine or configure the RazorViewEngine to not use and look for .vbhtml files on disk? For new ASP.NET MVC 3 Razor projects, I always remove the WebFormViewEngine in Application_Start because I won't ever be using it and so I don't need it to search for .aspx, .ascx or .master files on disk. For this same reason I would like to avoid .vbhtml file searching.

Answer 1

This is the code for your custom view engine:

public class CSRazorViewEngine : RazorViewEngine {

    public CSRazorViewEngine() {

        base.AreaViewLocationFormats = new string[] { 
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml"
        };

        base.AreaMasterLocationFormats = new string[] { 
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml"
        };

        base.AreaPartialViewLocationFormats = new string[] { 
            "~/Areas/{2}/Views/{1}/{0}.cshtml",
            "~/Areas/{2}/Views/Shared/{0}.cshtml"
        };

        base.ViewLocationFormats = new string[] {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/Shared/{0}.cshtml"
        };

        base.PartialViewLocationFormats = new string[] {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/Shared/{0}.cshtml"
        };

        base.MasterLocationFormats = new string[] {
            "~/Views/{1}/{0}.cshtml",
            "~/Views/Shared/{0}.cshtml"
        };

        base.FileExtensions = new string[] { "cshtml" };
    }
}

Register this on Application_Start method like this:

ViewEngines.Engines.Clear();
ViewEngines.Engines.Add(new CSRazorViewEngine());

Answer 2

Why is there no point in removing search in .vbhtml if I'm never going to use it?

Here is how I do it (but I still don't know is it a good thing to remove vbhtml):

protected void Application_Start()
{
    ViewEngines.Engines.Clear();
    ViewEngines.Engines.Add(new RazorViewEngine().DisableVbhtml());

    ...
}

Extension method code:

public static RazorViewEngine DisableVbhtml(this RazorViewEngine engine)
{
    engine.AreaViewLocationFormats = FilterOutVbhtml(engine.AreaViewLocationFormats);
    engine.AreaMasterLocationFormats = FilterOutVbhtml(engine.AreaMasterLocationFormats);
    engine.AreaPartialViewLocationFormats = FilterOutVbhtml(engine.AreaPartialViewLocationFormats);
    engine.ViewLocationFormats = FilterOutVbhtml(engine.ViewLocationFormats);
    engine.MasterLocationFormats = FilterOutVbhtml(engine.MasterLocationFormats);
    engine.PartialViewLocationFormats = FilterOutVbhtml(engine.PartialViewLocationFormats);
    engine.FileExtensions = FilterOutVbhtml(engine.FileExtensions);

    return engine;
}

private static string[] FilterOutVbhtml(string[] source)
{
    return source.Where(s => !s.Contains("vbhtml")).ToArray();
}

Answer 3

There is no point in doing this.

However, if you really want to, you can clear ViewEngines, then register your own RazorViewEngine with FileExtensions set to ".cshtml".

Answer 4

I figured I'd merge the examples from @tugberk and @Dimps:

public class CSHtmlRazorViewEngine : RazorViewEngine {
    public CSHtmlRazorViewEngine()
        : base() {
        this.AreaMasterLocationFormats = Filter(base.AreaMasterLocationFormats);
        this.AreaPartialViewLocationFormats = Filter(base.AreaPartialViewLocationFormats);
        this.AreaViewLocationFormats = Filter(base.AreaViewLocationFormats);
        this.FileExtensions = Filter(base.FileExtensions);
        this.MasterLocationFormats = Filter(base.MasterLocationFormats);
        this.PartialViewLocationFormats = Filter(base.PartialViewLocationFormats);
        this.ViewLocationFormats = Filter(base.ViewLocationFormats);
    }

    private static string[] Filter(
        string[] source) {
        return source.Where(
            s =>
                s.Contains("cshtml")).ToArray();
    }
}