Save more then one select items from listbox to database

private string GetConnectionString()

   {



       //Where DBConnection is the connetion string that was set up in the web config file



        return System.Configuration.ConfigurationManager.ConnectionStrings["DBConnection"].ConnectionString;



    }

    private void InsertRecords(StringCollection sc)

   {

       SqlConnection conn = new SqlConnection(GetConnectionString());



        StringBuilder sb = new StringBuilder(string.Empty);



        foreach (string item in sc)



        {



            const string sqlStatement = "INSERT INTO Table1 (Employees) VALUES";



            sb.AppendFormat("{0}('{1}'); ", sqlStatement, item);



        }

        try



        {

            conn.Open();



            SqlCommand cmd = new SqlCommand(sb.ToString(), conn);



            cmd.CommandType = CommandType.Text;



            cmd.ExecuteNonQuery();



            Page.ClientScript.RegisterClientScriptBlock(typeof(Page), "Script", "alert('Records Successfuly Saved!');", true);



        }



         catch (System.Data.SqlClient.SqlException ex)



        {



            string msg = "Insert Error:";



            msg += ex.Message;



            throw new Exception(msg);



        }



        finally



        {



           conn.Close();



        }



    }



     protected void Page_Load(object sender, EventArgs e)



    {

   }



    protected void Button1_Click(object sender, EventArgs e)



    {

       StringCollection sc = new StringCollection();



        foreach (ListItem item in ListBox1.Items)



       {



            if (item.Selected)



            {



               sc.Add(item.Text);



            }



        }



        InsertRecords(sc);



    }