I have a MVVM class method handling a user action to delete an entry. The code inside the MVVM class method displays a messagebox to prompt a confirmation from the user.

The use of this messagebox seems to interfere with the 'NotifyChange' related updates.

@SuppressWarnings(

{ "rawtypes", "unchecked" })
@Command("deleteSelected")
@NotifyChange({"locationModel","selectedLocation","showEdit"})
public void deleteSelected() {
if (getSelectedLocation() != null) {
try {
if (geoLocationManager.isUsed(getSelectedLocation().getData().getID())) { Messagebox.show("This Location cannot be deleted as it is being used by requirements or available resources","Delete", Messagebox.OK, Messagebox.INFORMATION); }
else {
Messagebox.show("Confirm deletion of ["+getSelectedLocation().getData().getTitle()+"]?", "Confirm Dialog", Messagebox.OK | Messagebox.CANCEL,
Messagebox.QUESTION, new org.zkoss.zk.ui.event.EventListener() {
public void onEvent(Event evt) throws InterruptedException {
if (evt.getName().equals("onOK")) {
try { geoLocationManager.delete(getSelectedLocation().getData().getID()); buildModel(); setSelectedLocation(null); BindUtils.postNotifyChange(DataAreaIDs.QUEUE_NAME,DataAreaIDs.QUEUE_SCOPE,this,"showEdit"); BindUtils.postNotifyChange(DataAreaIDs.QUEUE_NAME,DataAreaIDs.QUEUE_SCOPE,this,"locationModel"); }
catch (PersistenceException e) { showErrorView(getCommand(), e); }
catch (UnknownGeoLocationException e) {
}
}
}
});
}
}
catch (PersistenceException e) { showErrorView(getCommand(), e); } }
}




I've even tried forcing the refresh using the 'bindUtils' calls, but the view remains unaffected.

If I take out the 'Messagebox.show' code, like:


@SuppressWarnings({ "rawtypes", "unchecked" }

)
@Command("deleteSelected")
@NotifyChange(

{"locationModel","selectedLocation","showEdit"}

)
public void deleteSelected() {
try

{ geoLocationManager.delete(getSelectedLocation().getData().getID()); buildModel(); setSelectedLocation(null); }

catch (UnknownGeoLocationException e)

{ // TODO Auto-generated catch block e.printStackTrace(); }
catch (PersistenceException e) { // TODO Auto-generated catch block e.printStackTrace(); }

... the @NotifyChange updates refresh the page correctly.

A bug I presume