Thanks for looking into this. Here's my ugly hack to get around the problem:
DropDownChoice elevationSelect = new DropDownChoice("elevationSelect") { private float oldElevation = 0.0f; public List getChoices() { return ((HwddcState) parent.getModelObject()).getElevationList(); } protected boolean wantOnSelectionChangedNotifications() { // The following is a hack to be able to record the // change from the old version. Unfortunately, the old // version is not available by the time // onSelectionChanged is called, so it needs to be saved // here. HwddcState hwddcState = (HwddcState) parent.getModelObject(); oldElevation = hwddcState.getPpiImageParams().getElevation(); return true; } protected void onSelectionChanged(final Object newSelection) { HwddcState hwddcState = (HwddcState) parent.getModelObject(); final float oldElevation = this.oldElevation; ((PpiPage) getPage()).recordChange(new Change() { public void undo() { ((HwddcState) parent.getModelObject()).getPpiImageParams().setElevation(oldElevation); } }); hwddcState.getPpiImageParams().setElevation((Float) newSelection); ((PpiPage) getPage()).updateMapImages(); } }; elevationSelect.setChoiceRenderer(new ElevationChoiceRenderer()); boundModel.bind(elevationSelect, "ppiImageParams.elevation"); add(elevationSelect); -- View this message in context: http://www.nabble.com/DropDownChoice%27s-onSelectionChanged-called-too-late-tf2186138.html#a6058680 Sent from the Wicket - User forum at Nabble.com. ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user