ASP.NET How to register Custom View Engine using OWIN

Question

I'm trying to implement Custom View Engine that will let me specify additional View paths that looks like this:

public class CustomViewEngine : RazorViewEngine
{
    public CustomViewEngine()
    {
        ViewLocationFormats = new[]
        {
            "~/Views/{1}/{0}.cshtml", "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml", "~/Views/Shared/{0}.vbhtml"
        };
        MasterLocationFormats = new[]
            {
            "~/Views/{1}/{0}.cshtml", "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml", "~/Views/Shared/{0}.vbhtml"
        };
        PartialViewLocationFormats = new[]
            {
            "~/Views/{1}/{0}.cshtml", "~/Views/{1}/{0}.vbhtml",
            "~/Views/Shared/{0}.cshtml", "~/Views/Shared/{0}.vbhtml",
            "~/Views/Partials/Widgets/{0}.cshtml", "~/Views/Partials/Widgets/{0}.vbhtml"
        };

    }
}

There's a lot of source code how to use it in Global.asax.cs for example here: Can I specify a custom location to "search for views" in ASP.NET MVC? but there's no source that would show how to register this Engine when using OWIN. How to do it?

When referring to OWIN you are talking about Startup class, right? Are you in asp.net mvc 4 or 5? — Claudio Valerio, Mar 05 '20 at 13:24

score 0 · Accepted Answer · answered Mar 05 '20 at 14:12

Try this:

Startup.cs

using System.Web.Mvc;
using Microsoft.Owin;
using Owin;

[assembly: OwinStartup(typeof(WebApplication2.Startup))]

namespace WebApplication2
{
   public class Startup
   {
      public void Configuration(IAppBuilder app)
      {
         ViewEngines.Engines.Clear();
         ViewEngines.Engines.Add(new CustomViewEngine());
      }
   }
}

Hamza Yahia · Answer 2 · 2023-07-17T10:59:45.367

0

you can register this Engine in Application_Start()

like this :

ViewEngines.Engines.Add(new CustomViewEngine());

and you can look to this answer : Working with subfolders in custom view engine

edited Jul 17 '23 at 10:59

answered Jul 17 '23 at 10:51

Hamza Yahia

41
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ASP.NET How to register Custom View Engine using OWIN

2 Answers2