UpdatePanel happens nothing

[mentalhard]

hello,

i have an UpdatePanel with three dropDownloLists and it works just fine untill you click the third list. There happens nothing.
Means no selectedIndex handler fired. Altrough the AutoPostBack is set to true for all three control.

I was wondering is the UpdatePanel limited to two controls or something ?
I tried to add some other controls like buttons but also didn't work ..

all that there works are the first 2 dropdownlist's.

Any idea?

 

[Paszt]

I'll assume you're not using Triggers...
The update panel is not limited in the number of controls it handles. If the control is located inside the update panel, you should get an asynchronous postback. Otherwise you would get a full postback.
You should set breakpoints for the events in question to verify that those events are being fired and handled.

 

[mentalhard]

[resolved]

Ah i forgot to close this thread as RESOLVED.
Actually i found the bug right after i posted this question here.
It was error in the query so instead dr("ISPN").ToString there was dr("ISNP").ToString.
As you know AJAX doesn't return that exception immidiatelly even if you place Try Catch block around ... however thanks for the suggestion Paszt.