[Mono-list] The TargetControlID of '_AccordionExtender' is not valid

Julien Sobrier julien at sobrier.net
Wed Sep 19 21:58:18 EDT 2007

Marek Habersack wrote:
> On Mon, 17 Sep 2007 22:36:18 -0700, Julien Sobrier <julien at sobrier.net>
> scribbled:
>> Hello,
> Hello,
>> I attached the source of an ASP.Net page where I create Accordions
>> dynamically through a database binding. The page works fine with IIS,
>> but fails with xsp2 + mono 1.2.5 + System.Web.Extensions SVN. I get this
>> error:
>> The TargetControlID of '_AccordionExtender' is not valid
>> The value cannot be null or empty.
>> I'm not sure which element as the ID '_AccordionExtender'
> There was a bug in Mono (which I fixed after releasing 1.2.5) which set the ID
> of a control after other properties/fields of a control in the generated
> source. You need to use svn trunk version of Mono to see the bug gone.
> best regards,
> marek

Thank you.
I've intalled mono SVN in /usr/local, but I still see the same issue.
But my set up maybe not be correct since I still have 1.2.5 in /usr.

I remember an article explaining how to keep several versions of Mono on
the same machine and how to switch cleanly from one to another, but I
cannot find it anymore.


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