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I have a JTable that has several columns. I wanted to make some of the columns unsortable. How do I do it? I am stuck using Java 1.4 so using TableRowSorter isn't an option since it wasn't introduced until 1.6.

Trippy
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3 Answers3

5

(for example, only pseudo_code, everything is there hardcoded as example, have to override columns from ColumnModel) 

if (column >= 0 && column < getModelWrapper().getColumnCount() 
    && isSortable(column)) {

with

if (column >= 0 && column <=1  /*getModelWrapper().getColumnCount()*/ 
    && isSortable(column)) {

in public void toggleSortOrder(int column) {

then second column isn't sortable

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Community
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mKorbel
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0

Set the rowSorter on the JTable to null. See http://download.java.net/jdk7/archive/b123/docs/api/javax/swing/JTable.html#setRowSorter(javax.swing.RowSorter)

Lee Meador
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0

If you want to sort some and not others, you'll have to implement a listener. I've used something like this:

table.getTableHeader().addMouseListener(new MouseAdapter() {
        @Override
        public void mouseClicked(MouseEvent e) {
            int col= table.getTableHeader().columnAtPoint(e.getPoint());
            // column number col has been clicked -- sort if necessary,
            // discard the event if sorting is not desired.
            //
        }

    });

Watch out for tables that can drag and drop rows; you can disable this with 

table.getTableHeader().setReorderingAllowed(false);
cneller
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  • This does not work, you only add additional logic, but you do not prevent the existing mouselisteners and sorting logic to be applied... Tested like this: table.getTableHeader().addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { return; } }); – ruben056 Oct 29 '14 at 12:59
  • True it does not prevent existing listeners from firing. However, if you're using the BasicTableHeaderUI (as I expect most are), you can setReorderingAllowed to false (as indicated) and it will work. – cneller Oct 30 '14 at 14:30