[alpha02]

Hi all, I made a calendar using a JTable and numbers in cells. But I need to make the cells without numbers (null value) unselectable.

I tried making it in my ListSelectionListener:

public void valueChanged (ListSelectionEvent e){
	int r = lvwCalendar.getSelectedRow();
	int c = lvwCalendar.getSelectedColumn();
	if (r != -1 && c != -1){

			if (lvwCalendar.getValueAt(r, c) != null && e.getValueIsAdjusting() == false){
		 //Selection OK
		}
			else if (e.getValueIsAdjusting() == false){
		  //Prevent selection
		 }
	}
}

I really can't figure out how to do it, any help please? Thanks.

[1lacca]

Unselectable, or uneditable? The latter can be done easily via the TableModel.isCellEditable(int row, int col) function (so a custom TableModel is needed).
Making cells unselectable might require a bit more work, but I think it can be done something like this.
I don't know for sure, but there might be an easier way, too.

[alpha02]

I will consider your link as a solution if I can't find something simpler, but it's great, thanks. But do you have something simpler with less code?

[1lacca]

If I had, I would have posted it, believe me But wait for a while, maybe someone else knows a simpler way.

[alpha02]

Can't I simply override a JTable or DefaultTableModel method which processes cell selecting? It would be much simpler than creating a table, a model, a UI...