Controllers

Controllers in ASP.NET MVC

In ASP.NET MVC, a Controller is an important component that handles user requests and controls the flow of the application.

When a user sends a request from the browser, it is first received by the Controller. The Controller then decides what action to perform and which view should be displayed.

What is a Controller?

A Controller is a C# class that contains methods called Actions. These actions respond to user requests and return a response, usually in the form of a View.

In simple words, the Controller works as a middleman between the user (client) and the application logic.

How Controller Works (Simple Flow)

1. User sends a request from the browser.
2. The request reaches the Controller.
3. The Controller processes the request.
4. The Controller returns a View as a response.

Uses of Controller

• Handles user requests.
• Processes application logic.
• Connects Model and View.
• Controls which View should be displayed.

To add a controller to your project, follow the steps below:

1. Right-click on the “Controllers” folder.
2. Click Add

Click Controller

Select MVC 5 Controller - Empty And Click Add Button

After clicking the Add button, a new window will open.

1. In the opened window, change the default controller name to Home.
2. After changing the name, click the Add button to create the controller.

When the controller is created for the first time, default code is generated automatically.

using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace Your_Project_Name.Controllers
{
    public class HomeController : Controller
    {
        // GET: Home
        public ActionResult Index()
        {
            return View();
        }
    }
}