Customized path change for MVC Views

When we create MVC project all the Models, View and Controllers will be created with separate folder structure. after publishing the MVC you will get folder structure as 

• BIN
• Views
• Images
• Fonts
• Styles
• Scripts
• Global.asax
• Packages.config
• web.config

so, we will place all the folders and files into a folder called WebSite1 and map that folder to IIS virtual directory and use it.

But if we want to keep another sub folder within the WebSite1 then we have to make changes to the
default  return view().

Required folder structure

WebSite1

• WebUIFileUpload                  
• BIN
• Views
• Images
• Fonts
• Styles
• Scripts
• Global.asax
• Packages.config
• web.config 

we can change the default paths using below process

public class CustomViewEngine : WebFormViewEngine
{
    public CustomViewEngine()
    {
        var viewLocations =  new[] {  
            "~/Views/{1}/{0}.aspx",  
            "~/Views/{1}/{0}.ascx",  
            "~/Views/Shared/{0}.aspx",  
            "~/Views/Shared/{0}.ascx",  
            "~/AnotherPath/Views/{0}.ascx"
            // etc
        };

        this.PartialViewLocationFormats = viewLocations;
        this.ViewLocationFormats = viewLocations;
    }
}

Make sure you remember to register the view engine by modifying the Application_Start method in your Global.asax.cs

protected void Application_Start()
{
    ViewEngines.Engines.Clear();
    ViewEngines.Engines.Add(new CustomViewEngine());
}

Below is an example of extending the Razor engine to add new paths. 

public class ExtendedRazorViewEngine : RazorViewEngine
{
    public void AddViewLocationFormat(string paths)
    {
        List<string> existingPaths = new List<string>(ViewLocationFormats);
        existingPaths.Add(paths);

        ViewLocationFormats = existingPaths.ToArray();
    }

    public void AddPartialViewLocationFormat(string paths)
    {
        List<string> existingPaths = new List<string>(PartialViewLocationFormats);
        existingPaths.Add(paths);

        PartialViewLocationFormats = existingPaths.ToArray();
    }
}
And your Global.asax.cs

protected void Application_Start()
{
    ViewEngines.Engines.Clear();

    ExtendedRazorViewEngine engine = new ExtendedRazorViewEngine();
    engine.AddViewLocationFormat("~/MyThemes/{1}/{0}.cshtml");
    engine.AddViewLocationFormat("~/MyThemes/{1}/{0}.vbhtml");

    // Add a shared location too, as the lines above are controller specific
    engine.AddPartialViewLocationFormat("~/MyThemes/{0}.cshtml");
    engine.AddPartialViewLocationFormat("~/MyThemes/{0}.vbhtml");

    ViewEngines.Engines.Add(engine);

    AreaRegistration.RegisterAllAreas();
    RegisterRoutes(RouteTable.Routes);
}
please note that, your custom location will need the ViewStart.cshtml file in its root.