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Posted to users@wicket.apache.org by alezx <su...@gmail.com> on 2012/04/18 13:12:15 UTC
problem with page refresh
Hi guys, I ran into a problem lately,
I have an instance variable in my panel and an ajax behaviour
public final class ScrollLoader extends Panel implements IHeaderContributor
{
int number = 0;
private AbstractDefaultAjaxBehavior b;
..
//constructor
public Scrolloader (...){
b = new AbstractDefaultAjaxBehavior() {
@Override
protected void respond(AjaxRequestTarget target) {
System.out.println("number is "+number);
number++;
}
}
..
}
}
when I click a button on the page, with ajax I call this behaviour and the
number is incremented.
if I click on the buttons 5 times, the number increments to 0,1,2,3,4,
then if I refresh the page and than click on the button other 5 times, the
number goes to 9 (5,6,7,8,9)
//so far, so good!
but now if I refresh the page again, and I click on the button the number
starts incrementing from 4 and not from 9!! (so If I press the button 5
times I see again 5,6,7,8,9 and not 10,11,12..)
same problem when I load the page for the first time:
If I *refresh * the page before incrementing the value, the number starts
incrementing from 0
so i get 0,1,2,3,4
if I refresh again, the number starts incrementing from 0 again..
in other words when I refresh the page 2, 3, 4 times, the number starts
incrementing from the value reached before the first refresh, after that
first refresh any change to the number is lost..
so what do I do wrong?
sorry if this is a bit confusing,
and thanks for your help!
ale
--
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Re: problem with page refresh
Posted by Martin Grigorov <mg...@apache.org>.
Hi,
I see you use 1.4.x (implementing IHeaderContributor). Which url
coding strategy is used for this page ?
I'd recommend you to use HybridUrlCodingStrategy because it keeps the
page id in the url (something like: my/page.4)
This is the reason why urls for stateful pages in Wicket 1.5 also keep
the pageId in the url (my/page?4). This way even the refresh keeps the
last state of the page. Without the page id Wicket would create a new
instance of the page.
On Wed, Apr 18, 2012 at 2:12 PM, alezx <su...@gmail.com> wrote:
> Hi guys, I ran into a problem lately,
>
> I have an instance variable in my panel and an ajax behaviour
>
> public final class ScrollLoader extends Panel implements IHeaderContributor
> {
>
> int number = 0;
> private AbstractDefaultAjaxBehavior b;
> ..
>
> //constructor
> public Scrolloader (...){
> b = new AbstractDefaultAjaxBehavior() {
> @Override
> protected void respond(AjaxRequestTarget target) {
> System.out.println("number is "+number);
> number++;
> }
> }
> ..
> }
> }
>
> when I click a button on the page, with ajax I call this behaviour and the
> number is incremented.
>
> if I click on the buttons 5 times, the number increments to 0,1,2,3,4,
> then if I refresh the page and than click on the button other 5 times, the
> number goes to 9 (5,6,7,8,9)
>
> //so far, so good!
>
> but now if I refresh the page again, and I click on the button the number
> starts incrementing from 4 and not from 9!! (so If I press the button 5
> times I see again 5,6,7,8,9 and not 10,11,12..)
>
>
> same problem when I load the page for the first time:
>
> If I *refresh * the page before incrementing the value, the number starts
> incrementing from 0
> so i get 0,1,2,3,4
> if I refresh again, the number starts incrementing from 0 again..
>
> in other words when I refresh the page 2, 3, 4 times, the number starts
> incrementing from the value reached before the first refresh, after that
> first refresh any change to the number is lost..
>
> so what do I do wrong?
>
> sorry if this is a bit confusing,
>
> and thanks for your help!
>
> ale
>
>
>
> --
> View this message in context: http://apache-wicket.1842946.n4.nabble.com/problem-with-page-refresh-tp4567392p4567392.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com
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Re: problem with page refresh
Posted by Jonathan Tougas <jt...@gmail.com>.
Hi Ale. I had a very similar problem, and I was able to get the behavior I
expected by changing the render strategy to ONE_PASS_RENDER in
Application.init(). Have a look at this
http://apache-wicket.1842946.n4.nabble.com/refresh-and-AjaxFallbackDefaultDataTable-td4384935.html
On Wed, Apr 18, 2012 at 7:12 AM, alezx <su...@gmail.com> wrote:
> Hi guys, I ran into a problem lately,
>
> I have an instance variable in my panel and an ajax behaviour
>
> public final class ScrollLoader extends Panel implements IHeaderContributor
> {
>
> int number = 0;
> private AbstractDefaultAjaxBehavior b;
> ..
>
> //constructor
> public Scrolloader (...){
> b = new AbstractDefaultAjaxBehavior() {
> @Override
> protected void respond(AjaxRequestTarget target) {
> System.out.println("number is "+number);
> number++;
> }
> }
> ..
> }
> }
>
> when I click a button on the page, with ajax I call this behaviour and the
> number is incremented.
>
> if I click on the buttons 5 times, the number increments to 0,1,2,3,4,
> then if I refresh the page and than click on the button other 5 times, the
> number goes to 9 (5,6,7,8,9)
>
> //so far, so good!
>
> but now if I refresh the page again, and I click on the button the number
> starts incrementing from 4 and not from 9!! (so If I press the button 5
> times I see again 5,6,7,8,9 and not 10,11,12..)
>
>
> same problem when I load the page for the first time:
>
> If I *refresh * the page before incrementing the value, the number starts
> incrementing from 0
> so i get 0,1,2,3,4
> if I refresh again, the number starts incrementing from 0 again..
>
> in other words when I refresh the page 2, 3, 4 times, the number starts
> incrementing from the value reached before the first refresh, after that
> first refresh any change to the number is lost..
>
> so what do I do wrong?
>
> sorry if this is a bit confusing,
>
> and thanks for your help!
>
> ale
>
>
>
> --
> View this message in context:
> http://apache-wicket.1842946.n4.nabble.com/problem-with-page-refresh-tp4567392p4567392.html
> Sent from the Users forum mailing list archive at Nabble.com.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>