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HomeController

The HomeController provides basic application navigation and session management functionality.

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Source

Controllers/HomeController.cs
using Microsoft.AspNetCore.Mvc;
using MvcCoreUtilidades.Models;
using System.Diagnostics;

namespace MvcCoreUtilidades.Controllers
{
    public class HomeController : Controller
    {
        // ... methods documented below
    }
}

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Methods

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Index

Returns the main home page view. 
public IActionResult Index()
Returns: IActionResult - The home page view

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Privacy

Returns the privacy policy page view. 
public IActionResult Privacy()
Returns: IActionResult - The privacy view

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Error

Handles application errors and displays the error page with diagnostic information. 
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
Attributes:
  • [ResponseCache] - Disables caching for error pages
Returns: IActionResult - Error view with ErrorViewModel containing request ID Usage: 
return View(new ErrorViewModel { 
    RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier 
});

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LogIn (GET)

Displays the login form. 
public IActionResult LogIn()
Returns: IActionResult - The login view

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LogIn (POST)

Processes user login and stores the username in session. 
[HttpPost]
public IActionResult LogIn(string usuario)
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usuario
string
required
The username to store in session
Returns: IActionResult - The login view with success message Session Storage: 
HttpContext.Session.SetString("USUARIO", usuario);
ViewData["MENSAJE"] = "Usuario en el sistema";

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LogOut

Clears the user session and redirects to home page. 
public IActionResult LogOut(string usuario)
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usuario
string
Username parameter (not used in implementation)
Returns: IActionResult - Redirect to Index action Session Removal: 
HttpContext.Session.Remove("USUARIO");
return RedirectToAction("Index");

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Session Configuration

For session management to work, ensure session middleware is configured in Program.cs:
Program.cs
builder.Services.AddDistributedMemoryCache();
builder.Services.AddSession();

// ...

app.UseSession();

Session Management Example

See complete session implementation

ErrorViewModel

Error model documentation

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