How do you define Entity in Default.aspx.cs with a "using"

namespace ClassList
{
    public class Person
    {
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string Phone { get; set; }
        public string Address { get; set; }
    }
}

using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using ???.Person
string connectionString = ConfigurationManager.ConnectionStrings["DefaultConnection"].ConnectionString;
string selectSql = "SELECT * FROM Members";

List<Person> source = new List<Person>();
using (SqlConnection myConnection = new SqlConnection(connectionString))
{
    SqlCommand myCommand = new SqlCommand(selectSql, myConnection);
    myCommand.CommandType = System.Data.CommandType.Text;

    myConnection.Open();
    SqlDataReader nwReader = myCommand.ExecuteReader();
    while (nwReader.Read())
    {
        source.Add(new Person {
            FirstName = nwReader["firstName"].ToString(),
            LastName = nwReader["lastName"].ToString(),
            Phone = nwReader["Phone"].ToString(),
            Address = nwReader["Address"].ToString});
    }
}
ListView1.DataSource = source;
ListView1.DataBind();