listbox ?

how do i set the contronls on a web page that is depending on what the user select in the listbox, i have user info stored in a arraylist +userobj, ......when the user click add the user info (last and first name and some survey checkbox questions) is stored in a arraylist and only the user last and first name is display in a listbox.....so if the user makes a mistake he or she can pick the name and click remove to delete the user info and all survey info from the listbox and array...this all works fine.......but i want to display the user info that was entered when the user select a name in the listbox.....i have tried to set the controls to the arraylist object in the selected change method in the listbox but it is not working ..............does anyone have any ideas......
code++++++++++++

ProtectedSub btnAddList_Click(ByVal senderAsObject,ByVal eAs System.EventArgs)Handles btnAddList.Click

Dim strSelectionAsString

tempArray.Add(New userObject(txtlname2.Text, txtfname2.Text, txtmname2.Text))

tempArray.TrimToSize()

ForEach obj1In tempArray

strSelection = obj1.lastName &", " & obj1.firstName &", " & obj1.middleName

If Len(LTrim(strSelection)) > 0Then

ListBox1.Items.Add(strSelection)

ListBox1.SelectedIndex = 0

EndIf

Next

'clear text box

txtlname2.Text =""

txtfname2.Text =""

txtmname2.Text =""

EndSub

+++++++++++++++++++++++

ProtectedSub ListBox1_SelectedIndexChanged(ByVal senderAsObject,ByVal eAs System.EventArgs)Handles ListBox1.SelectedIndexChanged

// not working does not see below...
ForEach obj1In tempArray

Response.Write("testing") //not working

txtlname2.Text = obj1.lastName

txtfname2.Text = obj1.firstName

txtmname2.Text = obj1.middleName

Next

cheetoz--
Regarding this...

cheetoz wrote:

...to display the user info that was entered when the user select a name in the listbox.....i have tried to set the controls to the arraylist object in the selected change method in the listbox but it is not working ..............does anyone have any ideas......

...it may be the case that the ListBox needs to have autopostback="true" set in the code-infront.
Try that; it might help.
HTH.
Thank you.

the autopost back is already set.......i know it has something to do with my code but just can't figure it out........heres the logic to the code................when item is selected the coresponding item index number is used to select the array that contains the object that holds the user info, and then repopulate the controls .........i just don't know the code can someone provide me with some examples........thanks
Where are you declaring tempArray? Furthermore, where are you storing it? Remember that ALL variables get re-declared (and set to 0) on every PostBack unless you stick them in ViewState, Session, etc.
NC...