As you said - the problem was in using "elements" instead of "targets" - I
didn't find this information in @EventListener documentation.
This is the response by Jessek from Tapestry forum:
Using elements="elementId" only targets and listens to dom nodes.
You only get the majority of automated functionality (like submitting
forms) when you target a component via
targets = "componentId"
Change your example to be:
<input jwcid="[EMAIL PROTECTED]" value="ognl:recName" id="recName"
class="text large" type="text" />
@EventListener(events="onchange", targets = "recordName")
public void onRefresh(IRequestCycle cycle) {
log.debug(getRecName()); // this returns null (or initial value)
}
and it should work..
p.s. Internet explorer doesn't do a very good job of reporting changes
to textfields via the onchange event, please see the related
quircksmode links and warnings on the bottom of the documentation page
for @EventListener for more on this..
TeleMarkR wrote:
>
> I see. Coming from Tapestry 4.0, I've had great success with the
> contrib:XTile component for Ajax, but does require writing some
> javascript to handle the callback.
>
> I see in the docs that the form is submitted by default, but am not
> clear as to whether the EventListener gets called before the form submit
> listener. One slight difference between the example in the link and what
> you're attempting is using 'targets' in place of 'elements'.
>
> If this doesn't do it for you, I'd post to the tapestry forum. Please
> post back here when you find a resolution.
>
> Cheers,
> Mark
>
> caarney wrote:
>> Hi,
>> thanks for information, but I want to use AJAX functionality, so I can't
>> use
>> normal submit (AJAX is faster and it keeps the page scroll position).
>> Listening to recName events doesn't help neither - the value is still
>> null:
>>
>> @EventListener(events="onchange", elements="recName")
>> public void onRefresh(IRequestCycle cycle) {
>> log.debug(getRecName()); // = null
>> }
>>
>> This is the description of autoSubmit parameter of @EventListener:
>> "When components implementing IFormComponent are targeted they will
>> normally
>> automatically cause a form submission to happen so that the property they
>> manage on your form is updated when your listener method is called - this
>> parameter can be used to disable the automatic submission of the
>> enclosing
>> form."
>>
>> ... so I think the form should submit and the value of recName should be
>> set
>> entered value, right?
>> Is there any difference between elements and targets parameters of
>> @EventListener?
>>
>> Maybe I should move this thread to Tapestry forum.
>>
>> I need to achieve something like this:
>> http://www.nabble.com/How-to-update-a-selection-model-based-on-a-prior-selection-tf4342042.html#a12368934
>>
>>
>>
>> TeleMarkR wrote:
>>
>>> Hi Caarney,
>>>
>>> I'm new to Tapestry 4.1, but checked the docs for the @EventListener
>>> annotation. The docs say " The EventListener
>>> <http://tapestry.apache.org/tapestry4.1/tapestry-annotations/apidocs/org/apache/tapestry/annotations/EventListener.html>annotation
>>> is attached to listener
>>> <http://tapestry.apache.org/tapestry4.1/tapestry-framework/apidocs/org/apache/tapestry/IActionListener>methods
>>> to dynamically bind and listen to client side browser events.",
>>> which tells me that you're not handling a server-side form post.
>>>
>>> You can try something like:
>>> @EventListener(events="onchange", elements="recName") to implement an
>>> AJAX
>>> style handler, or if you just want to handle a simple form post, do
>>> something like:
>>>
>>> <form jwcid="@Form" listener="listener:onRefresh"> and remove the
>>> @EventListener annotation. Your onRefresh method should work when the
>>> form
>>> is submitted.
>>>
>>> HTH,
>>> Mark
>>>
>>> On Dec 5, 2007 8:51 AM, caarney <[EMAIL PROTECTED]> wrote:
>>>
>>>
>>>> Hi,
>>>> I'm using Tapestry 4.1.3 and the @EventListener functionality. The
>>>> eventlistener method is called correctly, but I can't get any
>>>> user-entered
>>>> values from the form. As I understood from the documentation, the form
>>>> should submit itself by default and send the values to the server, but
>>>> it
>>>> doesn't work for me. I tried to use @Persist annotation for the getter
>>>> of
>>>> the requested value, but it didn't help.
>>>>
>>>> <input jwcid="@TextField" value="ognl:recName" id="recName"
>>>> class="text large" type="text" />
>>>>
>>>> @Persist
>>>> public abstract String getRecName();
>>>>
>>>> @EventListener(events="onchange", elements="ddRecipient")
>>>> public void onRefresh(IRequestCycle cycle) {
>>>> log.debug(getRecName()); // this returns null (or initial
>>>> value)
>>>> }
>>>>
>>>> I presume that the getRecName() function in the EventListener is
>>>> supposed
>>>> to
>>>> return the value entered by user - is it right? Am I doing something
>>>> wrong?
>>>> Thanks
>>>>
>>>>
>>>>
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/Tapestry-EventListener-doesn%27t-seem-to-submit-form-tf4950403s2369.html#a14174059
>>>> Sent from the AppFuse - User mailing list archive at Nabble.com.
>>>>
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>>>>
>>>>
>>>
>>
>>
>
>
>
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