Filtered list is never shown, List doesn't change

[Greenkohl23]

Hi,

I used a Filter on my List. I implemented a searchfield and onChange it filters the List. I Override the filter methode, because i have a hashtable with 2 arguments which should be compared to the filter argument. Filtering is working, but the list doesn't change. Where is my fault?

 final TextField search = (TextField) findByName("Search", f);

        search.addDataChangeListener(new DataChangedListener() {

            public void dataChanged(int type, int index) {

                Log.p("Searchfield changed", Log.DEBUG);

                String searchEntry = search.getText();

                Log.p("Search Entry: " + searchEntry);

                List list = (List) findByName("MultiList", search.getComponentForm());

                FilterProxyListModel f = new FilterProxyListModel(list.getModel()) {

                    private ListModel underlying = this.getUnderlying();

                    private ArrayList<Integer> filter;

                    

                    @Override

                    public void filter(String str) {

                        filter = new ArrayList<Integer>();

                        str = str.toUpperCase();

                        for (int iter = 0; iter < underlying.getSize(); iter++) {

                            Object o = underlying.getItemAt(iter);

                            if (o != null) {

                                Hashtable h = (Hashtable) o;

                                Object val = h.get("ssid");

                                Object val2 = h.get("strasse");

                                if ((val != null && ((String)val).toUpperCase().indexOf(str) > -1)) {

                                    filter.add(new Integer(iter));

                                } else if ((val2 != null && ((String)val2).toUpperCase().indexOf(str) > -1)) {

                                    filter.add(new Integer(iter));

                                }

                            }

                        }

                    }

                };

                f.filter(searchEntry);

                list.setModel(f);

                list.getParent().revalidate();

[Shai Almog]

Hi,
I suggest overriding this instead:

protected boolean check(Object o, String str)

Which will work seamlessly. You didn't fire the data change event.

[Greenkohl23]

Hi,

thx for your help.

I changed it and override the check method. That fixed my Problem, so the list is filtered. But, if my searchfield is empty it doesn't recognize to reset the filter. I think there is a fault in using the FilterProxyModel right.

I tried to use:

f.install(search, list); 

instead of:

f.filter(searchEntry); list.setModel(f);

But this ignores my override on: 

check(Object o, String str);

I think I am close to the solution, but I need another hint :D

[Greenkohl23]

Fixed it, with the help of this Thread:

https://groups.google.com/forum/#!searchin/codenameone-discussions/list$20filter/codenameone-discussions/RQKG_KQSawg/SUzQUS3UXawJ