insert multiple value from listbox

i done this coding but i cant find that what is the mistake....

==>two listbox ==> lst_leftstar and lst_rightstar
items pass from lst_leftstar to lst_rightstar
and
coding for ==>> lst_rightstar values store in database.

==>> 2 tables
==> <1> starmaster
starid
star

==>> <2> profile star
profilestar
starid

xml query is perfect written
but problem is in the coding..
my code is :=

protected void btnsumit_partner_details_Click(object sender, EventArgs e)
    {
        DataTable dt = new DataTable();

        dt.Columns.Add("Star_Id");

        for (int i = 0; i < lst_rightstar.Items.Count; i++)
        {
            dt.Rows.Add("");

            dt.Rows[i]["Star_Name"] = lst_rightstar.Items[i].Value;
        }

        clsregisterinfo.Dtstd = dt;
        clsregisterinfo.insert_data();
    }

==> my problm is here.
that when id debug i see that...for loop isn't worked..
means...when i trace the code...i cant enter in for loop..
and vales pass null in class file.

Tags: C#, ASP.NET