Populating data from dropdown in one page to textbox in another page

Hi,

In Timesheet application

                        services                     venue            Startime                      Endtime                BF        Lunch             Dinner      Total

sunlinkbtn           txtbx(s1;s2;s3)         txtbx           txtbx (9:30AM)                txtbx(7:00PM)     txtbx     txtbx         txtbx             txtbx

MonLinkbtn      ...

tue

wed

thu

...when click on sunlinkbtn it  redirects to details page.aspx

services                  venue           projectname     startime                       end time                    bf               lunch           dinn     total

dropdown1(s1)         txtbox              txtbox            (9:30AM)                    (11:00AM)txtbox         txtbox      txtbox           txtbox       txtbox

dropdown2(s2)         txtbox              txtbox              txtbox (1:00PM)           txtbox(3:00PM)          txtbox           txtbox       txtbox    txtbox

dropdown3 (s3)        txtbox              txtbox              txtbox(4:00PM)                txtbox(7:00PM)      txtbox           txtbox       txtbox            txtbox

 okbutton

When user select  different services   in  each dropdown   and start time  for first services  and  endtime of last service   when he clicks on ok button  it saves in database and i wanrt to populate those  services , starttime and endtime  in main page as shown above.

 

detailspage.aspx

Ok_Click



Response.Redirect(

"Timesheet3.aspx?choice="+ddlServicesserv1.SelectedValue+";");}

Tiemsheet.aspx

pageload

{
 txt_ServiceSunday.Text=Request.QueryString["choice"];

}

One dropdown value i can show byusing above i code in textbox but i want to show all  dropdown  values in the same textbox with delimeters .If i click on sunlinkbutoon  or monday linkbutton etc..