Question

I wonder if it’s possible to wrap dynamically add layout to partial views based on routing.

For example:

• http://my.app.com/Controller/GetForm – returns a partial view
• http://my.app.com/Test/Controller/GetForm – returns the same partial view, but wrapped in _Layout.cshtml

The point here is that I don’t want to create another view with duplicate functionality, but rather set Layout property dynamically.

Thanks.

Answer 1

Try this:

Action

public ActionResult Index() {
    ViewBag.Layout = null;

    object layout;
    if (RouteData.Values.TryGetValue("layout", out layout)) {
        switch(layout.ToString())
        {
            case "Layout1":
                ViewBag.Layout = "~/Views/Shared/_Layout.cshtml";
                break;
            // ...
        }
    }

    return PartialView("Test");
}

Markup

@{
     Layout = ViewBag.Layout;
}

<div>This is the test page...</div>

Routing config

routes.MapRoute(
    "Default", // Route name
    "{controller}/{action}", // URL with parameters
    new { controller = "Home", action = "Index", id = UrlParameter.Optional }); // Parameter defaults

routes.MapRoute(
    "DefaultWithLayout", // Route name
    "{layout}/{controller}/{action}", // URL with parameters
    new { controller = "Home", action = "Index", id = UrlParameter.Optional }); // Parameter defaults
}

Or just

routes.MapRoute(
    "Default", // Route name
    "{controller}/{action}/{layout}", // URL with parameters
    new { controller = "Home", action = "Index", layout = UrlParameter.Optional, id = UrlParameter.Optional }); // Parameter defaults