Implementing Login and Registration
Learn how registration and login workflows work in ASP.NET Core MVC. These two features form the foundation of user account systems and make it possible to create secure, personalized web applications.
Part 1: Why Login and Registration Matter
Most real-world web applications need a way for users to create accounts and sign in. Registration allows a new user to enter the system, while login allows an existing user to verify identity and access protected features.
Without these workflows, the application cannot reliably distinguish one user from another.
- Registration creates an account
- Login verifies an existing account
- Together they form the basis of user identity
Part 2: The Registration Process
Registration usually collects basic user information and stores it securely. A registration form often includes:
- Name or username
- Email address
- Password
- Password confirmation
Once the user submits the form, the application validates the information, checks whether the account already exists, and saves the new account if everything is valid.
Part 3: The Login Process
Login is the process of verifying a user’s credentials against stored account data. A typical login form includes:
- Email or username
- Password
If the credentials are correct, the application signs the user in and marks the session as authenticated. From that point onward, the user can access protected content according to permissions.
Part 4: A Basic Registration Form Example
A simple registration form in Razor might look like this:
<label>Email</label>
<input type="email" name="Email" />
<label>Password</label>
<input type="password" name="Password" />
<label>Confirm Password</label>
<input type="password" name="ConfirmPassword" />
<button type="submit">Register</button>
</form>
In a real application, the submitted data would be validated and the password would be stored securely.
Part 5: A Basic Login Form Example
A simple login form may look like this:
<label>Email</label>
<input type="email" name="Email" />
<label>Password</label>
<input type="password" name="Password" />
<button type="submit">Login</button>
</form>
The application compares the entered credentials with stored account information. If the match is valid, the login succeeds.
Part 6: Controller Workflow
In MVC, login and registration usually follow the same pattern you learned for forms:
- A GET action shows the form
- A POST action receives and processes the submitted data
{
return View();
}
[HttpPost]
public IActionResult Login(LoginViewModel model)
{
if (ModelState.IsValid)
{
// Check credentials here
}
return View(model);
}
The same general pattern is used for registration as well.
Part 7: Why Secure Storage Matters
Registration and login are not just about forms. They also involve secure handling of passwords and identity data. Passwords should never be stored as plain text.
In real ASP.NET Core applications, built-in identity systems are often used to manage passwords safely, enforce validation rules, and handle authentication cookies or tokens.
Part 8: Login and Registration in the Student Project
In your Student CRUD project, login and registration can be used to build a more realistic system. For example:
- Teachers or staff register for accounts
- Only signed-in users can manage student records
- Different users can later be assigned different permissions
This turns the application from a basic CRUD demo into a more practical management system.
Summary
Login and registration are two of the most important features in secure web applications. Registration allows users to join the system, while login verifies identity and unlocks protected access. Once these workflows are implemented properly, your application becomes far more realistic and secure.
