Madhav Bhargava schrieb:
> felix.bec...@t-systems.com schrieb:
>
>> Hi,
>>
>> I've got a JSF page divided in 2 parts - the status message area and
>> the content area. The content area is positioned under the status
>> message area. In the status area all messages for the user should be
>> shown - for example success messages, error messages and exceptions.
>> In my content area I've got a <tr:dataTable
>> value="#{myBean.values}"..>. When the method getValues() of myBean
>> throws an exception, I'm catching this exception. I want to display
>> this exception in the status message area - but this does not work -
>> apparently because the status area is already rendered when the
>> content el-methods are called. Is there any solution for this problem?
>> Is it possible to render the status area at last?
>>
>>
> One quick solution can be to call a javascript function on onload. This
> function can do an ajax submit and re-render the status area of your JSP. If
> there are any error messages then that will displayed else nothing will be
> displayed.
> If you want more control then do not add the FacesMessage to the
> FacesContext, instead handle it yourself.
>
Will re-rendering messages using a separate ajax request work?
FacesMessage objects are attached to the FacesContext, not the view. And
a FacesContext is a request-scoped object. So AFAIK, a second request
will always see an empty messages list...
Regards,
Simon
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