Collapsible Panel open inside a Listview

Hello folks, I've a little problem. I tried to find the answer in google, but not luck with that.
I've a listview and inside the listview I've a  Collapsible Panel extender (from ajaxControlKit).
I need to collpse that Panel Extende dinamically.

But I cannot find the collapsible panel extender inside the listview.
I trying to do this:

Dim CollapsiblePanelExtender1 As collapsiblepanelextender   = CType(e.Item.FindControl("HiddenSecId"), collapsiblepanelextender )

collapsiblepanelextender.collapsed = true

The problem is trying to find de control.

Anybody can help with this??

Thanks in advanced for any help
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nkoriginalAsked:
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masterpassCommented:
If this is the exact code that you have written

Dim CollapsiblePanelExtender1 As collapsiblepanelextender   = CType(e.Item.FindControl("HiddenSecId"), collapsiblepanelextender )
collapsiblepanelextender.collapsed = true ' here the collapsiblepanelextender should be replaced by CollapsiblePanelExtender1

Also I hope this code is written in ItemDataBound of ListView control

Have a look : http://forums.asp.net/t/1196539.aspx

If you still have problems. please post your code
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nkoriginalAuthor Commented:
OH OK!. I solved my problem with your confirmation. I forgot to import ajaxcontrolkit.

Thanks for your help
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