target.addComponent(Field) in Ajax erases that Field's values
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
(Field2 is a CheckBoxMultipleChoice, initially initialized with some list,
and its outputMarkerId = true, to make it work with Ajax.)
Thanks
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Re: target.addComponent(Field) in Ajax erases that Field's values
im going to guess that the field is repainted with the values the
serverside thinks should be selected. if the values from the
clientside are not processed by the serverside before the ajax update
they will be different, and so the serverside state overrides the
clientside state.
-igor
On Tue, Dec 21, 2010 at 9:50 PM, eugenebalt eugeneb...@yahoo.com wrote:
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
(Field2 is a CheckBoxMultipleChoice, initially initialized with some list,
and its outputMarkerId = true, to make it work with Ajax.)
Thanks
--
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http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159543.html
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Re: target.addComponent(Field) in Ajax erases that Field's values
On Tue, Dec 21, 2010 at 1:50 PM, eugenebalt eugeneb...@yahoo.com wrote:
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
(Field2 is a CheckBoxMultipleChoice, initially initialized with some list,
and its outputMarkerId = true, to make it work with Ajax.)
Because you're doing this in an AJAX request that is only submitting the
value(s) of sourceField, and not Field2. Then you repaint Field2, and it
has no values, and gets replaced on the client side. You need to submit the
whole form or at least both fields.
--
Jeremy Thomerson
http://wickettraining.com
*Need a CMS for Wicket? Use Brix! http://brixcms.org*
Re: target.addComponent(Field) in Ajax erases that Field's values
Did the field2 have an initial value or did you set the value in your
browser and then let the ajax run?
Hielke
On 21 Dec 2010 20:51, eugenebalt eugeneb...@yahoo.com wrote:
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all
the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
(Field2 is a CheckBoxMultipleChoice, initially initialized with some list,
and its outputMarkerId = true, to make it work with Ajax.)
Thanks
--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159543.html
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Re: target.addComponent(Field) in Ajax erases that Field's values
Awesome! I love the Wicket community. 11 minutes after the initial post,
there are three very helpful answers. Great work everyone!
On Tue, Dec 21, 2010 at 2:01 PM, Hielke Hoeve hielke.ho...@gmail.comwrote:
Did the field2 have an initial value or did you set the value in your
browser and then let the ajax run?
Hielke
On 21 Dec 2010 20:51, eugenebalt eugeneb...@yahoo.com wrote:
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all
the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
(Field2 is a CheckBoxMultipleChoice, initially initialized with some
list,
and its outputMarkerId = true, to make it work with Ajax.)
Thanks
--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159543.html
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--
Jeremy Thomerson
http://wickettraining.com
*Need a CMS for Wicket? Use Brix! http://brixcms.org*
Re: target.addComponent(Field) in Ajax erases that Field's values
On Tue, Dec 21, 2010 at 5:50 PM, eugenebalt eugeneb...@yahoo.com wrote:
I have a piece of Ajax code, attached to some field (let's call it
sourceField), which looks like this:
sourceField.add(new AjaxFormChoiceComponentUpdatingBehavior()
{
protected void onUpdate(AjaxRequestTarget target)
{
target.addComponent(Field2);
}
}
As you can see, Field2 is not changed in any way, it is not cleared or
modified (so this code shouldn't really do anything).
However, when this Ajax runs on changing the sourceField, the Field2's
values get erased! Field2 is actually a CheckBoxMultipleChoice, and all the
checkbox selections get erased as soon as I do target.addComponent().
Why does this happen? Any ideas on what's causing this?
Actually I have, but very unlikely:
sourceField = new CheckBoxMultipleChoice(id, new MyModel(){ getObject{
return new ArrayList();} }, choiceList);
this would generate your problem :-)
(Field2 is a CheckBoxMultipleChoice, initially initialized with some list,
and its outputMarkerId = true, to make it work with Ajax.)
Thanks
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Pedro Henrique Oliveira dos Santos
Re: target.addComponent(Field) in Ajax erases that Field's values
Thanks for the fast replies, much appreciated, but what should I change in my code? I'm still not clear. Yes, the Field2 had some initial values with which it was constructed. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159605.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: target.addComponent(Field) in Ajax erases that Field's values
s/AjaxFormChoiceComponentUpdatingBehavior/AjaxFormSubmittingBehavior/ so all values are propagated -igor On Tue, Dec 21, 2010 at 10:24 PM, eugenebalt eugeneb...@yahoo.com wrote: Thanks for the fast replies, much appreciated, but what should I change in my code? I'm still not clear. Yes, the Field2 had some initial values with which it was constructed. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159605.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: target.addComponent(Field) in Ajax erases that Field's values
But I can't use AjaxFormSubmittingBehavior (correct me if I'm wrong). I need to make some changes to Field2 prior to any form submission, they have to be made as soon as the sourceField has changed in any way. I just don't want the Field2's values to get erased without me even doing anything. I was going to make some other changes to Field2, but noticed the values were getting erased. So I can't wait till form submission. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159666.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: target.addComponent(Field) in Ajax erases that Field's values
It looks like I fixed it by adding new Ajax code to Field2. The Field2's Ajax code does nothing, it just calls target.addComponent() on itself: target.addComponent(Field2). This got rid of the values getting erased. So whenever you update something via Ajax, it has to be 2-way? You need to attach Ajax not just to the caller but also to the target? thanks -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/target-addComponent-Field-in-Ajax-erases-that-Field-s-values-tp3159543p3159688.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
