Passing ID and Name of Selected Item from Combo Box

Hi,

I have a form with a combo Box, that is populated by pulling names in from a Database Table when it loads:

con.Open();

MySqlCommand sc = new MySqlCommand("SELECT CustomerName from bbb.Customers", con);

MySqlDataReader reader;

reader = sc.ExecuteReader();

DataTable dt = new DataTable();

dt.Columns.Add("CustomerName", typeof(string));

dt.Load(reader);

comboBox1.ValueMember = "CustomerName";

comboBox1.DataSource = dt;

con.Close();

I can get the data no problem, but I need the associated ID with it. The ID is Column 1, and Customer Name is Column 2. How can I the ID? Do I have to add the code in 'SelectedIndexChanged' property?

Thank you!