how to read a data from db to checkboxlist with status of data?

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C#

Windows

application

i want to fetch a data from db to which columnName is enabled by user, i sdisplayed both checked and unchecked field name in checkbox list......
this my code ........

SqlCommand cmd =new SqlCommand( "select * from stckcol_header_tbl",conn);
            cmd.Connection = conn;
            conn.Open();
            using (SqlDataReader sdr = cmd.ExecuteReader())
            {
                while (sdr.Read())
                {
                    ListBox item = new ListBox();
                    item.DisplayMember = sdr["columnName"].ToString();
                    item.ValueMember = sdr["colid"].ToString();
                    item.SelectedItem = Convert.ToBoolean(sdr["status"]);
                    Chk_colHeader.Items.Add(item);
                }
            }

thanks in advance....