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  1. ZK
  2. ZK-1346

MessageBox inside MVVM command method blocks NotifyChange updates

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      Description

      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

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            Assignee:
            Unassigned Unassigned
            Reporter:
            davout davout
            Votes:
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              Created:
              Updated:
              Resolved: