Beginners guide to a secure way of storing passwords

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace HowToSecurePasswordInDatabaseArticle
{
    public partial class AddUser : System.Web.UI.Page
    {
        protected void btnAddUser_Click(object sender, EventArgs e)
        {
            string username = txtUsername.Text;
            string password = txtPassword.Text;

            bool result = UserDatabase.AddUser(username, password);
        }
    }
}