how to store other column when select item in listbox

protected void Button1_Click(object sender, EventArgs e)
    {
       
SqlConnection myConnection = new SqlConnection(connectionString);
        myConnection.Open();

        string query = "INSERT INTO task_status ([title_task], [pic], [start_date], [due_date], [status_remarks], [Empl_id]) values (@title_task, @pic, @start_date, @due_date, @status_remarks, @Empl_id)";

        SqlCommand cmd = new SqlCommand(query, myConnection);
        cmd.Parameters.Add("@title_task", SqlDbType.VarChar).Value = TextBox1.Text.Trim();
        cmd.Parameters.Add("@pic", SqlDbType.VarChar, 50);

        Boolean IsFirst = true;
        foreach (ListItem item in ListBox1.Items)
        {

            if (item.Selected)
            {
                if (IsFirst)
                {
                    cmd.Parameters["@pic"].Value = item.Text;
                    IsFirst = false;
                }
                else
                {
                    cmd.Parameters["@pic"].Value += "," + item.Text;
                }
                Label36.Text = item.Text;
            }
            
              
        }
        
        cmd.Parameters.Add("@start_date", SqlDbType.DateTime).Value = DateTime.Parse(TextBox2.Text);
        cmd.Parameters.Add("@due_date", SqlDbType.DateTime).Value = DateTime.Parse(TextBox3.Text);
        cmd.Parameters.Add("@status_remarks", SqlDbType.VarChar).Value = TextBox5.Text.Trim();
        cmd.Parameters.Add("@Empl_id", SqlDbType.VarChar).Value = Label28.Text.Trim();

}

protected void ComboBoxBind()
    {
        SqlConnection con = new SqlConnection(connectionString);
        con.Open();
        SqlDataAdapter da = new SqlDataAdapter("select id, Nama from login_staff order by Nama asc", con);
        DataSet ds = new DataSet();
        da.Fill(ds, "login_staff");
        ListBox1.DataSource = ds.Tables["login_staff"].DefaultView;
        ListBox1.SelectedIndex = 0;
        ListBox1.DataTextField = "Nama";
        //ListBox1.DataMember = "nickname";
        ListBox1.DataValueField = "id";
        ListBox1.DataBind();
        ListBox1.Items.Insert(0, "--Select--");
        con.Close();
        //return 
    }