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https://issues.apache.org/struts/browse/WW-2863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=45973#action_45973
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Wes Wannemacher commented on WW-2863:
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the onchange parameter is definitely eaten. After looking at freemarker
templates for about 30 minutes and not finding anything, I found the culprit in
org.apache.struts2.components.DoubleSelect.java. The line
'addParameter("onchange", getParameters().get("id") +
"Redirect(this.options.selectedIndex)");' will definitely eat anything you have
set. It would probably be better to either fix the docs or store what the user
specified and tack that onto what we are setting.
> onchange handler doesn't fire on doubleselect tag
> -------------------------------------------------
>
> Key: WW-2863
> URL: https://issues.apache.org/struts/browse/WW-2863
> Project: Struts 2
> Issue Type: Bug
> Reporter: Amy Nordberg
>
> doubleselect tag documentation (at
> http://struts.apache.org/2.0.11.2/docs/doubleselect.html) says onchange is
> supported. But it doesn't fire (see below).
> <s:doubleselect formName="theForm" required="true"
> requiredposition="left"
> key="facilityInstanceName"
> doubleName="instanceName"
> list="facilityInstances"
> doubleList="instances"
> listKey="facilityInstanceName"
> doubleListKey="instanceName"
> listValue="facilityInstanceName"
> doubleListValue="instanceName"
> value="defaultFacility"
> doubleValue="defaultInstance"
>
> onchange="setFormButtons();/>
> See also the comments at
> http://thefiles.macadamian.com/2008/04/struts-2-doubleselect-detailed-example.html.
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