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JTabbedPane - Previously selected Tab.

Rob Elliott

Joined: Apr 24, 2002
Posts: 9
Hi All,
I'm using a JTabbedPane and want to do some field validation at the moment the user selects another Tab. Potentially, depending on their reply to a messagebox, keep them on the same tab to correct bad data.
I'm implementing the ChangeListener interface and handling stateChanged events however getSelectedIndex() returns the newly selected tab.
Is there easy way to
1) Determine which was the previously selected Tab and
2) Prevent the user from going to the newly selected Tab in the case of data validation failure? A stateChanged event cannot be consumed.
Thanks in advance,
Nathan Pruett

Joined: Oct 18, 2000
Posts: 4121

"RE" -

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You can change it here.

Here's a small example that should help you... you'll have to save the current index and compare it in the ChangeListener...

Thanks! and welcome to the JavaRanch!

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Paulo Guzman

Joined: Dec 07, 2010
Posts: 2
You can extends JTabbedPane to override the setSelectedIndex method and then call super.setSelectedIndex(index); after doing your validation something like:

I agree. Here's the link:
subject: JTabbedPane - Previously selected Tab.
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