How can I do some action when one specific Tab is selected using Javafx

Question

I'm trying to do something when one tab of my tabPane is clicked, I've tried use Action Event but it doesn't work:

public void tabPressClicked (ActionEvent event){
        comboBoxPresYear.setVisible(true);
        lblPresYear.setVisible(true);
    }

[EDITED]

The right way to do that:

tabPresentation.setOnSelectionChanged(new EventHandler<Event>() {
            @Override
            public void handle(Event t) {
                if (tabPresentation.isSelected()) {
                    comboBoxPresYear.setVisible(true);
                    lblPresYear.setVisible(true);
                }
            }
        });

score 15 · Accepted Answer · answered Feb 04 '13 at 17:27

15

I'm not sure what you're trying to do/ what ActionEvent you are expecting but try either something like:

tabPane.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {
    @Override
    public void changed(ObservableValue<? extends Number> ov, Number oldValue, Number newValue) {
        // do something...
    }
});

if you want to do something when the selection changes (any tab)

or try:

http://docs.oracle.com/javafx/2/api/javafx/scene/control/Tab.html#setOnSelectionChanged%28javafx.event.EventHandler%29

for a specific tab (I haven't tried this yet, though).

answered Feb 04 '13 at 17:27

Puce

37,247
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What I need is when I select a specific tab (tabPress) set one comboBox and one label Visible, just it – Victor Laerte Feb 04 '13 at 18:26
just add if(newValue = yourSpecificTabNUmber) { comboBoxPresYear.setVisible(true); lblPresYear.setVisible(true);} to changed method :) – invariant Feb 04 '13 at 21:06
1

Did you try Tab.setOnSelectionChanged I mentioned? – Puce Feb 05 '13 at 08:40

score 13 · Answer 2 · edited Jan 12 '16 at 11:07

13

You do that with the selectedItemProperty or selectedIndexProperty like Puce was saying. Here the solution with the selectedItemProperty which I think is better because you get the selected Tab item itself

tabPane.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Tab>() {

    @Override
    public void changed(ObservableValue<? extends Tab> observable, Tab oldTab, Tab newTab) {
        if(newTab == tabPresentation) {
            comboBoxPresYear.setVisible(true);
            lblPresYear.setVisible(true);}
        }
    });

I assume the tabPresentation is the Tab object itself.

edited Jan 12 '16 at 11:07

Evan Knowles

7,426
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answered Oct 11 '13 at 05:06

yaakuro

191
1
4

This is really nice, because I get the tab item directly and don't need to refer to a specific tab number, which might change. – ulrich Oct 22 '14 at 14:23

score 2 · Answer 3 · answered Jan 04 '18 at 22:35

2

Wouldn't this be the easiest way to do it

    tab.selectedProperty().addListener((observable, oldValue, newValue) -> {
        if (newValue) {
            comboBoxPresYear.setVisible(true);
            lblPresYear.setVisible(true);}
        }
    });

answered Jan 04 '18 at 22:35

ankur_kachru

534
5
13

1

That's a great JavaFX8 solution – Lorenzo Lerate Mar 08 '19 at 11:03

score 0 · Answer 4 · answered Nov 25 '21 at 00:33

0

import javafx.event.Event; import javafx.event.EventHandler;

    tab1.setOnSelectionChanged((EventHandler<Event>) t -> {
        if (tab1.isSelected()) {
            System.out.println(tab1.getText() + " is selected");
        }
    });

answered Nov 25 '21 at 00:33

tdd

1
1

How can I do some action when one specific Tab is selected using Javafx

4 Answers4