You can do this with a bind, for example:
In the model:
<xforms:bind nodeset="my-upload-element" constraint=". != ''"/>
Your control:
<xforms:upload ref="my-upload-element">
...
-Erik
On Mar 18, 2008, at 4:34 AM, Laxmi Narayana wrote:
> Hi,
> I am using upload button in ops3.5.1.
> if i have not entered anything in upload button(manually) i have to
> show error message.howw can i provide that validation in ops.
>
>
> Thanks in advance,
> Laxminarayana Yadavalli.
>
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