so the scenario is that I've got a JTable with a number of JComboBox's as cells. On the selection of an element of a JComboBox, there needs to be a change in the structure of the Table Model. I've also got an 'output table' below which listens to the selection of the JComboBox's and re-validates accordingly, because of this, I need to keep the model of the query table the same so that it can reuse the listener. How can I change the structure of the Table Model?
DefaultTableModel QueryTableModel = new DefaultTableModel(dropDownUserSelection, resultsListHeadings );
queryTable.setModel(QueryTableModel);
JComboBox box = new JComboBox(boxModel);
queryTable.getColumnModel().getColumn(i).setCellEditor(new DefaultCellEditor(box));
I apologize if I am asking a question which has already been asked elsewhere, but I've had a poke around and couldn't find what I was looking for.
Thanks
The TableModel has the responsibility for notifying the parent table (or anybody listening) of changes to the model.
The general events available are data changed, cell updated, row inserted/removed and structure changed.
The "structure changed" tells the parent table that the structure of the table model (the number of columns and/or column names and/or types has changed) and it should completely update itself.
There are a number of ways you could achieve this. You could have the existing table model change it self accordingly and fire a "structure changed" event or you could construct a new table model and apply it to the JTable, depending on your needs.