Hi John,

Surface controllers are auto-routed, so you can not assign a route to it. I even think if you try to that you will break your site.

See the docs of surface controllers to know more about them : https://our.umbraco.org/documentation/Reference/Routing/surface-controllers

What you are looking for is "Route Hijacking". See the docs for route hijacking : https://our.umbraco.org/documentation/Reference/Routing/custom-controllers

Let's assume that your doctype has alias of "noTemplate"

What you would do then is create a controller that inherits from RenderMvcController and is named as following : doctypealias + Controller. In this case that would be NoTemplateController

public class NoTemplateController : Umbraco.Web.Mvc.RenderMvcController
{
    public override ActionResult Index(RenderModel model)
    {
        //Do some stuff here, then return the base method
        return this.View("NoTemplateViewPath", model: model);
    }

}

In the index method you will set the correct view that you want to render.

Dave

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