How to get selected item's ID from suggestBox?

[James Bekov]

[color=#444444] I have SuggestBox that connected with database

  
 MultiWordSuggestOracle oracleSurveys = new MultiWordSuggestOracle();
DashboardService.App.get().getSurveyAndFolder(new AsyncCallback<List<DashboardObject>>() {
            public void onFailure(Throwable throwable) {
                Window.alert("Error in getting surveys' name and folder's name , see log");
            }

            public void onSuccess(List<DashboardObject> dashboardObjects) {
                for (DashboardObject dashboardObject : dashboardObjects) {
                    oracleSurveys.add(dashboardObject.getAllSurveyName() + "  [" + dashboardObject.getSurveyFolderName() + "]"+dashboardObject.getAllSurveyID());
                }
            }
        });

surveySearch.addSelectionHandler(new SelectionHandler<SuggestOracle.Suggestion>() {
            public void onSelection(SelectionEvent<SuggestOracle.Suggestion> suggestionSelectionEvent) {
                        Window.alert("ID is"+ suggestionSelectionEvent.getSelectedItem().getDisplayString().split("\\]")[1]);
            }
        });

  

PROBLEM is "in popup menu ID shouldn't appear , but when i select any item i want to use item's ID "
help please!!!