How can I fill the height of JScrollPane with empty JTable Rows?

Question

I am putting a JTable in a JScrollPane, but the table only contain several rows, which makes the rest of the space in the pane just empty.

Is there any way I can do to make the JTable fill the entire pane? say, put empty rows so that the pane will be filled.

Thanks

score 10 · Accepted Answer · answered May 14 '11 at 00:00

10

table.setFillsViewportHeight( true );

answered May 14 '11 at 00:00

camickr

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As far as I can tell, this will just fill the viewport with the table background color, not with empty rows - Guess it depends on what is required. Personally, I think I prefer the look of this. – Riaan Cornelius May 16 '11 at 15:43
Yes, thats the idea. It doesn't make sense (to me) to add extra rows because then your model is not accurate since it contains filler rows which don't contain any data. – camickr May 16 '11 at 16:28

score 3 · Answer 2 · edited May 23 '17 at 10:29

3

The JTable method setPreferredScrollableViewportSize() is another way to manage screen real estate. There's an example here.

edited May 23 '17 at 10:29

Community

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answered May 14 '11 at 02:03

trashgod

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score 2 · Answer 3 · answered May 13 '11 at 21:38

I'm not sure if this is the best way, but it should work fine:

int rows = jTable1.getRowCount();
    int rowHeight = jTable1.getRowHeight();
    int tableHeight = jTable1.getTableHeader().getHeight()+(rows*rowHeight);
    System.out.println("JScrollpane: "+jScrollPane1.getViewport().getHeight());
    while( tableHeight<jScrollPane1.getViewport().getHeight()){
        System.out.println("JTable: "+tableHeight);
        ((DefaultTableModel) jTable1.getModel()).addRow(new Object[]{null,null,null,null});
        tableHeight+=rowHeight;
    }

Obviously, you'll need to change the model and the inserted data to whatever you're using.

How can I fill the height of JScrollPane with empty JTable Rows?

3 Answers3