How can I check if a user is in any one of a few different roles with MVC4 Simple membership?

Question

I understand that a good way to check if an user is in a role is:

if (User.IsInRole(\"Admin\"))
{

}

However How can I check if my user is

Answer 1

There's no built-in way to check if a user is in multiple roles, but it's pretty trivial to create a nice extension method to handle it for you:

public static bool IsInAnyRole(this IPrincipal principal, params string[] roles)
{
    return roles.Any(principal.IsInRole);
}

Usage then is:

if (User.IsInAnyRole("Admin", "Author", "SuperUser"))
{

}