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C# ASP.NET MVC Basics Controllers Using Action Result Types

Aaron Selonke
Aaron Selonke
10,323 Points
Posted by Aaron Selonke
Aaron Selonke
10,323 Points

MVC ComicGallery Broke when swtiching to the ContentResult action method

Followed line by line when switching the Detail fucntion to an action method, but the site broke afterward. Getting the 404 error.

Here are the two screenshots of the code from the IDE and the 404 error in the browser, What did I miss? http://uploadpie.com/sOAg8 http://uploadpie.com/zNx33

Thanks in advance

2 Answers

Dom Talbot
Dom Talbot
7,686 Points
Dom Talbot
Dom Talbot
7,686 Points

Hi Aaron

I think it might be because your ComicBookController class isn't set to public.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web.Mvc;

namespace ComicBookGallery.Controllers
{
    public class ComicBooksController : Controller
    {
        public ContentResult Detail()
        {
            return new ContentResults()
            {
                Content = "Hello from the comic books Controller"
            }
        }
    }
}
Aaron Selonke
Aaron Selonke
10,323 Points
Aaron Selonke
Aaron Selonke
10,323 Points

Yes that was it, Thanks.

Follow up question is that in the file path http://localhost:53286/ComicBooks/Detail Controller = ComicBooks Action = Detail

The routing process knows that the controller is /ComicBooks/ because the class name ComicBooksController? Is that correct?

Garrett Darnell
Garrett Darnell
18,751 Points

That is correct. As long as you follow the controllerNameController pattern, MVC will automatically associate the /controllerName/ route with that controller.