Remove last row from JPanel set with GridLayout

Question

I have a JPanel which has GridLayout as the layout. I have a plus button at the end of the Main Panel to add some panels to the grid. I need a minus button that subsequently removes the last row added to the grid.

I saw the docs related and it shows removeAll() method, which is not useful for me as I need to remove only the last row.

Also it shows some remove(int index). Again I am unaware of the index of the last row, though I tried doing this:

myPanel.remove(0);

but this removes the first row.

Is this a single column grid layout? Consider using a `JList` instead (either way). — Andrew Thompson, Jul 21 '14 at 10:14
[parentPanel.getComponentCount() - 1???, to adapt this code](http://stackoverflow.com/a/6989230/714968) — mKorbel, Jul 21 '14 at 10:27
yes its a single column grid as i am basically adding an entire mini panel on click of plus button — user2176576, Jul 21 '14 at 11:09
int count = panel.getComponentCount(); panel.remove(count-1); Did the trick,Thanks mKorbel — user2176576, Jul 21 '14 at 11:27

score 1 · Answer 1 · edited Nov 12 '15 at 09:16

1

If you want to remove the component at index x:

myPanel.remove(x);

If you want to add a component instead of the one you've removed:

myPanel.add(component c , x);

Then you should repaint:

myPanel.validate();
myPanel.repaint();

edited Nov 12 '15 at 09:16

mostar

4,723
2
28
45

answered Dec 09 '14 at 19:02

Osama Najjar

11
1

okey i am sorry : myPanel.remove(x); //where x is the index of the component you want to remove myPanel.add(component c , x); //if you want to add a component instead of the one you've removed myPanel.validate(); myPanel.repaint(); – Osama Najjar Dec 13 '14 at 23:16

Remove last row from JPanel set with GridLayout

1 Answers1