Adding sub-directory to “View/Shared” folder in ASP.Net MVC and calling the view

I’m currently developing a site using ASP.Net MVC3 with Razor. Inside the “View/Shared” folder, I want to add a subfolder called “Partials” where I can place all of my partial views (for the sake of organizing the site better.

I can do this without a problem as long as I always reference the “Partials” folder when calling the views (using Razor):

@Html.Partial("Partials/{ViewName}")

My question is if there is a way to add the “Partials” folder to the list that .Net goes through when searching for a view, this way I can call my view without having to reference the “Partials” folder, like so:

@Html.Partial("{ViewName}")

Thanks for the help!

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

Solved this. To add the “Shared/Partials” sub directory I created to the list of locations searched when trying to locate a Partial View in Razor using:

@Html.Partial("{NameOfView}")

First create a view engine with RazorViewEngine as its base class and add your view locations as follows. Again, I wanted to store all of my partial views in a “Partials” subdirectory that I created within the default “Views/Shared” directory created by MVC.

public class RDDBViewEngine : RazorViewEngine
{
    private static readonly string[] NewPartialViewFormats = 
    { 
        "~/Views/{1}/Partials/{0}.cshtml",
        "~/Views/Shared/Partials/{0}.cshtml"
    };

    public RDDBViewEngine()
    {
        base.PartialViewLocationFormats = base.PartialViewLocationFormats.Union(NewPartialViewFormats).ToArray();
    }       

}

Note that {1} in the location format is the Controller name and {0} is the name of the view.

Then add that view engine to the MVC ViewEngines.Engines Collection in the Application_Start() method in your global.asax:

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

Method 2

Thank you for your answers. This has organized my Shared folder, but why do you create a new type of view engine? I just made a new RazorViewEngine, set it’s PartialViewLocationFormats and added it to the list of ViewEngines.

ViewEngines.Engines.Add(new RazorViewEngine
{
    PartialViewLocationFormats = new string[]
    {
        "~/Views/{1}/Partials/{0}.cshtml",
        "~/Views/Shared/Partials/{0}.cshtml"
    }
});

Method 3

It´s nice to custom the view engine, but if you just want to have a subfolder por partials you don´t need that much…

Just use the full path to the partial view, as done for the Layout View:

@Html.Partial("/Views/Shared/Partial/myPartial.cshtml")

Hope it helps someone…

Method 4

If you are doing this in ASP.NET Core, simple go to the Startup class, under ConfigureServices method, and put

services.AddMvc()
    .AddRazorOptions(opt => {
        opt.ViewLocationFormats.Add("/Views/{1}/Partials/{0}.cshtml");
        opt.ViewLocationFormats.Add("/Views/Shared/Partials/{0}.cshtml");
    });

Method 5

I’ve updated lamarant’s excellent answer to include Areas:

public class RDDBViewEngine : RazorViewEngine
{
    private static readonly string[] NewPartialViewFormats =
    {
        "~/Views/{1}/Partials/{0}.cshtml",
        "~/Views/Shared/Partials/{0}.cshtml"
    };

    private static List<string> AreaRegistrations;

    public RDDBViewEngine()
    {
        AreaRegistrations = new List<string>();

        BuildAreaRegistrations();

        base.PartialViewLocationFormats = base.PartialViewLocationFormats.Union(NewPartialViewFormats).ToArray();
        base.PartialViewLocationFormats = base.PartialViewLocationFormats.Union(areaRegistrations).ToArray();
    }

    private static void BuildAreaRegistrations()
    {
        string[] areaNames = RouteTable.Routes.OfType<Route>()
            .Where(d => d.DataTokens != null && d.DataTokens.ContainsKey("area"))
            .Select(r => r.DataTokens["area"].ToString()).ToArray();

        foreach (string areaName in areaNames)
        {
            AreaRegistrations.Add("~/Areas/" + areaName + "/Views/Shared/Partials/{0}.cshtml");
            AreaRegistrations.Add("~/Areas/" + areaName + "/Views/{1}/Partials/{0}.cshtml");
        }
    }
}

Then don’t forget to include in your application start:

public class MvcApplication : System.Web.HttpApplication
{

    protected void Application_Start()
    {
        ...

        ViewEngines.Engines.Add(new RDDBViewEngine()); 
    }
}

Method 6

You can also update the partialview-location-formats of the registered RazorViewEngine.
Place the below code in Application_Start in Global.asax.

 RazorViewEngine razorEngine = ViewEngines.Engines.OfType<RazorViewEngine>().FirstOrDefault();
        if (razorEngine != null)
        {
            string[] newPartialViewFormats = new[] { 
                    "~/Views/{1}/Partials/{0}.cshtml",
                    "~/Views/Shared/Partials/{0}.cshtml"
            };
            razorEngine.PartialViewLocationFormats =
                razorEngine.PartialViewLocationFormats.Union(newPartialViewFormats).ToArray();
        }

Method 7

You can create register your own view engine that derives from whatever view engine your are using (Webforms/Razor) and specify whatever locations you want in the constructor or just add them to the list of already existing locations:

this.PartialViewLocationFormats = viewLocations;

Then in application start you would add your view engine like so:
ViewEngines.Engines.Add(new MyViewEngineWithPartialPath());


All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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