generate event for dynamic generate check box

Hi all,
 I want to generate check box checked event for the below code. I don't know how to generate checked event please suggest how to generate
 public void generatecheckbox()         {             DataTable dt = (DataTable)Session["filterone"];             CheckBox chk = new CheckBox();             List<string> airlines = new List<string>();             var query1 = (from dd in dt.AsEnumerable() group dd by dd.Field<string>("Airlines") into group1 select new {group1.Key,}).Distinct();             for (int i = 0; i < query1.ToList().Count; i++)    &nbs ...