Which JTable has the focus

[keenanbr]

Hi, I'm new to java. I am writing an application (converting from vb.net). So far (amongst others) I have a Jmenu and JtabbedPane. On each tab there are either 1 or two tables (JTable) which are populated from xml. In the menu there are options to insert/delete into/from table. I can tell which tab I am on but is there a way I can tell which table has the focus?

Regards,

 

[Diancecht]

What do you mean with "be on"?

How to get focused component

Cheers,
Dian

 

[keenanbr]

I don't understand the question. What do you mean by "Be on"?

 

[Diancecht]

I can tell which tab I am on

Did you have a look at the link?

Cheers,
Dian

 

[keenanbr]

Yes I did but it doesn't give me what I need. I am currently playing around with;

KeyboardFocusManager.getCurrentKeyboardFocusManager()
.addPropertyChangeListener(new FocusChangeListener());

I think this might give me what I want. I will let you know how I get on.

 

[keenanbr]

Hi,

I have each table on a JPanel.

I setup a mouse listener on each panel. When the user clicks on the panel I set the focus on the panel.

With my KeyboardFocusManager I know the name of the panel that has the focus and so can insert/delete to/from the appropriate table.

Not sure if this is the best solution but it works.

 

[Diancecht]

I understand now. I don't see any problems to your solution, just a question: when the user clicks the panel it isn't automatically focused?

Cheers,
Dian

 

[keenanbr]

when the user clicks the panel it isn't automatically focused?

I would have thought so too but it doesn't appear to be. I am still experimenting

 

[Diancecht]

Did you try the getSelectedIndex method of JTabbedPane class?

Cheers,
Dian

 

[keenanbr]

Yes, I am using that but I then have 2 panels on each tab and I need to allow the user to focus on either and then insert or delete to the associated table.

 

[Diancecht]

Maybe you can add a FocusListener to each JTable so you will be informed about when they lose or gain the focus

Cheers,
Dian