Hello (again) i have (again) a probleme.

I want to make a datatable with a delete option for each row (Ajax of course)

look like this:

[img]http://pix.nofrag.com/2/d/a/47c8f897c48f6a2e2f858ddee33b7.png[/img] (why [img] balise don't work?)

I have something who delete but only 1 time. If i want delete another row it's crash...

JSF:

<rich:dataTable id="packageList" value="#{pc_Index.listpackage}" var="file">
 <f:facet name="header">
 <rich:columnGroup>
 <h:column>
 <h:outputText value="File number" />
 </h:column>
 <h:column>
 <h:outputText value="Delete" />
 </h:column>
 </rich:columnGroup>
 </f:facet>
 <h:column>
 <h:outputText value="#{file}" />
 </h:column>
 <h:column>
 <a4j:commandLink id="delete" action="#{pc_Index.deletePackNumList}" reRender="packageList">
 <h:graphicImage style="border: none;" url="/img/delete_over.gif" />
 </a4j:commandLink>
 </h:column>
</rich:dataTable>

And in BackingBean:

protected List<String> listpackage = null;

public void deletePackNumList() {
 System.out.println("delete one row");
 String delme = (String) getPackageList().getRowData();
 System.out.println("row to delete: " + delme);
 listpackage.remove(delme);
 System.out.println("new listpackage: " + listpackage);
}

It's work first time then crash. look my log:

delete one row
row to delete: 789
new listpackage: [123, 456, 321, 654]
delete one row
java.lang.IllegalArgumentException javax.faces.el.EvaluationException: java.lang.IllegalArgumentException
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:108)
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
at javax.faces.component.UICommand.broadcast(UICommand.java:387)

The getRowData() don't work a second time. I use it bad, or it's not the good method.

if you know a sample with delete row it fine too.

thx