Roles in Visual Studio 2015 ASP.NET application

Question

Hello,

 

I have a ASP.NET application that I want to add  users and roles. At the moment all forms are accessible to everyone. 

 

To be more specific I want to have 3 roles.

1. Public Role --> no login needed

2. User Role -->need login with access in some forms

3. Admin Role -->need login, has access to all forms. 

 

How can I do this in Visual Studio 2015?

 

Thank you in advance.