Umbraco Controller. Routing. Why I have 404 error for all actions?

Question

I have custom controller like this:

using System.Web.Mvc;
using Umbraco.Web.Mvc;
using HttpGetAttribute = System.Web.Mvc.HttpGetAttribute;
using RouteAttribute = System.Web.Mvc.RouteAttribute;
using RoutePrefixAttribute = System.Web.Mvc.RoutePrefixAttribute;

namespace MyProject.Host.Controllers
{
    [RoutePrefix("partnerClient")]
    public class PartnerClientController : UmbracoController
    {
        [HttpGet]
        [Route("firstClient")]
        public ActionResult FirstClient()
        {
            return View(@"~/Views/Partner/FirstPartnerClientView.cshtml");
        }
    }
}

I am trying to call action {hostname}/partnerClient/firstClient But I got an error: Page not found No umbraco document matches the URL '/partnerClient/firstClient'.

But when I use UmbracoApiController routing is ok.

using Umbraco.Web.WebApi;
using HttpGetAttribute = System.Web.Http.HttpGetAttribute;
using RouteAttribute = System.Web.Http.RouteAttribute;
using RoutePrefixAttribute = System.Web.Http.RoutePrefixAttribute;

namespace MyProject.Host.Controllers
{
    [RoutePrefix("partnerClient")]
    public class PartnerClientController : UmbracoApiController
    {
        [HttpGet]
        [Route("firstClient")]
        public object FirstClient()
        {
            return "{test}";
        }
    }
}

I have to return View for this action and UmbracoApiController doesn't allow it. How I should configure routing for UmbracoController? Or maybe I should use some other way to return some View?

Answer 1

Not sure where you got the idea of using "UmbracoController" from - but you shouldn't :-/

Take a look at https://our.umbraco.com/documentation/Reference/Routing/ - it looks like you should use a RenderMvcController, but look through the docs to be sure.