Passing bool type parameters from another class

Dear all,

I would like to know, how to I go about passing parameters (username and password) into the following method, using a bool type method such as the one in user class.

 public class BasicAuthHandler : DelegatingHandler
    {

        private const string BasicAuthResponseHeader = "WWW-Authenticate";
        private const string BasicAuthResponseHeaderValue = "Basic";

        //private readonly iUser repository;

        public BasicAuthHandler(iUser repository)
        {
            this.repository = repository;
        }

        [Inject]
        iUser repository { get; set; }

	private ParseAuthorizationHeader(string authHeader)
        {
            string[] credentials = Encoding.ASCII.GetString(Convert.FromBase64String(authHeader)).Split(new[] { ':' });
            if (credentials.Length != 2 || string.IsNullOrEmpty(credentials[0]) || string.IsNullOrEmpty(credentials[1])) return null;

            return new ()
            {
                username = credentials[0],
                password = credentials[1],
            };
        }

User class:

public class User : iUser
    {
        private cdwEntities db;

        public User()
        {
            db = new cdwEntities();
        }

        public User(cdwEntities context)
        {
            db = context;
        }


        public bool subs(string username, string password)
        {
            //define the query : query will be an IQueryable
            var query = from s in db.Subscriptions
                        join u in db.UserDetails on s.sUID equals u.uID
                        where s.sExpiryDate >= DateTime.Now &&
                        s.sPID.Value == 163 &&
                        u.uUsername == username &&
                        u.uPassword == password
                        select u; //

            // "execute" the query
            return query.FirstOrDefault() != null; // if there is a result it will return true 

        }

Please  help. Many thanks in advance.