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 in one of the "Author", "Admin" or "Super" roles? Is there a way to do this without coding "User.IsInRole" for each of the roles?

Answer 1

EDIT: Without coding each role, do it a LINQ extension method, like so:

private static bool IsInAnyRole(this IPrincipal user, List<string> roles)
{
    var userRoles = Roles.GetRolesForUser(user.Identity.Name);

    return userRoles.Any(u => roles.Contains(u));
}

For usage, do:

var roles = new List<string> { "Admin", "Author", "Super" };

if (user.IsInAnyRole(roles))
{
    //do something
}

Or without the extension method:

var roles = new List<string> { "Admin", "Author", "Super" };
var userRoles = Roles.GetRolesForUser(User.Identity.Name);

if (userRoles.Any(u => roles.Contains(u))
{
    //do something
}