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Refresh panel when replacing a card

How do you update JPanel when changing a panel from a CardLayout container?

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Is there an actionlistener or something that I have reload / refresh my data on this screen?

You can use AncestorListener. It starts when a component is added to the Container. Therefore, when you change cards, the event leaves. You will need to add a listener to each panel that you add to CardLayout:

Another problem with CardLayout is that the panel does not focus when it is replaced. I use this approach to focus on the panel. Check out the "Focus Card" .

panel.addAncestorListener(...);
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Source: https://habr.com/ru/post/1757373/

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