Cells content not shown in JTable until JTable getting focus

Question

Hi have a JTable which each cell is a JPanel (using cell renderer)

The content of the cells is not shown until I click somewhere in the JTable to get focus.. (When I used JTextArea instead of JPanel for each cell it worked well)

I tried to use updateUI() in some places but it didn't help..

What is the problem? Thanks!

Please edit your question to include an [sscce](http://sscce.org/) that exhibits the problem you describe. — trashgod, Jun 14 '12 at 05:36
can only emphasize @trashgod 's comment - without it's _impossible_ to help. BTW: calling updateUI is _always_ wrong - if its random calling appears to solve a particular problem, something is severely wrong ... — kleopatra, Aug 17 '12 at 15:55

score 0 · Answer 1 · answered Aug 14 '12 at 09:40

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Try

table.repaint();
table.revalidate();

answered Aug 14 '12 at 09:40

Thinesh Ganeshalingam

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no, typically _not_ needed (except after adding/removing components to/from its parent) – kleopatra Aug 17 '12 at 15:53

score 0 · Answer 2 · edited May 23 '17 at 10:34

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To get functioning controls in a panel, you'll need not just a TableCellRenderer but also a CellEditor, as seen in this example. As @kleopatra comments, updateUI() should not be required.

edited May 23 '17 at 10:34

Community

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answered Aug 17 '12 at 21:54

trashgod

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Cells content not shown in JTable until JTable getting focus

2 Answers2