C# Detailsview inside Ajax Modalpopup inside Updatepanel

Description: I have a detailsview inside a modalpopup (from ajax toolkit). Next to the detailsview and modalpopup is a repeater that generates linkbuttons which fire the modalpop+detailsview to show.
This together sits in an asp:updatepanel.

(it's exactly the same as: http://www.dotnetcurry.com/ShowArticle.aspx?ID=212 )
Only i have the edit / cancel / updates buttons added to the detailsview.

Problem: I display the detailsview with an "edit or update+cancel" button like you would normally do. If you start and click the Edit Button (after of course activating the modal popup by clicking a linkbutton) i keep getting this error:

Die DetailsView details löste das ModeChanging-Ereignis  aus, das nicht behandelt wurde. 
Beschreibung: Unbehandelte Ausnahme beim Ausführen der aktuellen Webanforderung. Überprüfen Sie die Stapelüberwachung, um weitere Informationen über diesen Fehler anzuzeigen und festzustellen, wo der Fehler im Code verursacht wurde. 

Ausnahmedetails: System.Web.HttpException: Die DetailsView details löste das ModeChanging-Ereignis  aus, das nicht behandelt wurde.

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which basically says i didn't handle the ModeChanging Event. If i click the update button i get the same error but then for the ItemUpdating Event.

the important thing is everything needs to happen in the updatepanel since we don't want the pagerefresh.

How do i need to handle these events and why do you need to handle them?


Who is Participating?
livingtechAuthor Commented:
I guess i can make it with Matt Berseth's example. But i was more wondering why i got the errors.

Anyhow thx.
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