Detecting Selection Changes in a JTable
I'm trying to find a way to detect changes in which column the user selected in a JTable. I did some poking around and it appears t开发者_运维问答hat you need to somehow use a TableColumnModelListener in order to detect the changes, but that doesn't seem to fire an event when you change the column you have selected.
You need to add a ListSelectionListener
instead. That will capture selection events. Here are some Swing tutorials that go further in depth:
http://download.oracle.com/javase/tutorial/uiswing/events/listselectionlistener.html http://download.oracle.com/javase/tutorial/uiswing/components/table.html#selection
From what I read, I think you need to add a MouseListener to your table, which for example in mouseClicked will get the row and column using the following code, below:
table.addMouseListener(new MouseListener()
{
@Override
public void mouseClicked(MouseEvent e)
{
Point pnt = evt.getPoint();
int row = table.rowAtPoint(pnt);
int col = table.columnAtPoint(pnt);
}
}
It should work great for you I have used similar thing myself before. BTW it look similar to the problem I found on coderanch, link: http://www.coderanch.com/t/332737/GUI/java/detect-single-click-any-cell
Good luck, Boro
If by "change" you mean changing the value of a cell then you can use an AbstractTableModel and implement the fireTableCellUpdated method
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