You are probably manually calling setVisible(true) on the menu. That can cause some nasty buggy behavior in the menu. The show(Component, int x, int x) method handles all of the things you need to happen, (Highlighting things on mouseover and closing the popup when necessary) where using setVisible(true) just shows the menu without adding any … Read more
Are you looking for something like this perhaps? To show popup over selected row(s) only private void maybeShowPopup(MouseEvent e) { if (e.isPopupTrigger()) { // get row that pointer is over int row = table.rowAtPoint(e.getPoint()); // if pointer is over a selected row, show popup if (table.isRowSelected(row)) { popup.show(e.getComponent(), e.getX(), e.getY()); } } } Or the … Read more
I would recreate your DS once the user is finised editing the table. You can always create a custom editor to display a popup dialog where you have two separate text fields for each value of the range. Then you can edit each field as a double value within your specified range and recreate the … Read more