Notes

Certainly! To enhance the security of user authentication, you can modify the `EventModel` to include a password field. Additionally, you'll need to update the login logic in the controller accordingly. Below are the modifications:

### C# Model (EventModel.cs):

```csharp
public class EventModel
{
public int UserId { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public string Title { get; set; }
public DateTime Date { get; set; }
public string Time { get; set; }
public string Location { get; set; }
public string Description { get; set; }
}
```

### C# Controller (HomeController.cs):

```csharp
public class EventController : Controller
{
private static List<EventModel> events = new List<EventModel>();

// ... (existing code)

[HttpPost]
public ActionResult Login(string username, string password)
{
// Perform authentication logic
EventModel user = events.FirstOrDefault(u => u.Username == username && u.Password == password);

if (user != null)
{
// Set UserId and Username in session for authentication
Session["UserId"] = user.UserId;
Session["Username"] = user.Username;

return RedirectToAction("Index");
}
else
{
ViewBag.ErrorMessage = "Invalid credentials. Try again.";
return View();
}
}

// ... (existing code)
}
```

Now, the `EventModel` includes `Username` and `Password` fields. The login logic checks for a user with matching username and password. Ensure you handle password securely in a real-world scenario (e.g., hashing and salting).

Adjust your login view accordingly to include fields for username and password.

Note: For a production environment, consider using more advanced security measures and potentially an authentication framework like ASP.NET Identity.