[jira] [Commented] (WICKET-6853) OnChangeAjaxBehaviour gets called if there was no change

["Stefan Franke (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/WICKET-6853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17233004#comment-17233004 ] 

Stefan Franke commented on WICKET-6853:
---------------------------------------

Hi Sven,

how can someone distinguish the focus out onUpdate call from the onUpdate call before? The content is the same in both messages, so the model is not sufficient.

 

> OnChangeAjaxBehaviour gets called if there was no change
> --------------------------------------------------------
>
>                 Key: WICKET-6853
>                 URL: https://issues.apache.org/jira/browse/WICKET-6853
>             Project: Wicket
>          Issue Type: Improvement
>          Components: wicket-core
>    Affects Versions: 8.10.0
>            Reporter: Stefan Franke
>            Assignee: Sven Meier
>            Priority: Minor
>
> Consider this code where a TextField gets a OnChangeAjaxBehaviour 
> {code:java}
> // 
> TextField<String> tf = new TextField<>("id", model);
> tf.add(new OnChangeAjaxBehaviour() {
>   public void onUpdate(AjaxRequestTarget target) {
>     LOG.debug("update");
>   }
> }
> form.add(tf){code}
> The onUpdate() method is also called on focus out. But focus out does no updates.



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