I recently encountered a very depressed problem with the JBuilder design interface, and the Dual-drop menu of JComboX was invalid. One afternoon, later thanks to the QQ group a friend's help can be resolved. Now take it out to share with you.
Since I was a JBuilder newbie, I didn't find jPanel in the swing panel, I used the Panel in the AWT panel, but I didn't have a problem. However, JcomboBox's drop-down list didn't live. Later, I will change the Panel with others. It is a JPANEL and the question is solved. Take a look now that there is still a SwingContainers panel, which is still a version problem.
This accident tells me that the Swing component and the AWT component may not be interested in the problem, so be careful!
