Basic problem with a4j:support , but it's driving me crazy

[andre_a_s]

Hi All :)
Sorry for my poor English.

I've been using Ajax4JSF in my JSF apps for some time and I'm having basic problems.
I have two drop down boxes, where the second loads from the first. It is working 100% with a4j:support tag.
I have some other fields(textfileds) in the form and they are required="true".
The form works fine, and if the user do not fill any field and press the submit button, the form shows the validation messages.
GREAT. This is perfect, BUT now if the user tries to select the first drop down it do not loads the second!
I'm already using ajaxSingle="true".

In few words... the a4j:support is not accessing my BackBean when the page is submitted with blank values.

Well... who had this problem? How to fix it?
I can do all the validation in javascript, then I can let the field with required="false", but it will be too hard(the app is big) and I will wast a lot of time.
I don't think there's no solution for such a simple problem.
Any help is appreciated.
Thank you.

--
Andre.

[fernando_jmt]

Surround the first drop down box with <a4j:region>.

[andre_a_s]

"fernando_jmt" wrote:
Surround the first drop down box with <a4j:region>.

Well... like my father says... "Simple problems, simple answers".
Thank you very much, it worked fine.
Everything I put in a4j:region will pass through jsf validation ?

[fernando_jmt]

AFAIK, yes.

[trs]

can you explain what happenes when the dropdown is surrounded by a4j:region?

[fernando_jmt]

"TRS" wrote:
can you explain what happenes when the dropdown is surrounded by a4j:region?

a4j:region limits the area of the component tree to be processed in the server.
a4j:region does not limit the request data (the whole form is transfered).


HTH.

[sergeysmirnov]

Alex improved the 'ajaxSingle' feature couple weeks ago. So, ajaxSingle works like it is a region around it defined implicitly. Benefit of using ajaxSingle is limiting the request data (reducing traffic to the server)

P.S. Using a4j:region is still an option if you like it.