I have created an application that has a toolbar, menubar and content area. I have added the menu and toolbar to the application window, but I am stuck with displaying the panel in content area based on the button action (like add, display) which is clicked through the toolbar. Is this a right way to do this? Is there any better way to do this?
+6
A:
If I understand correctly, you want to have multiple JPanels, only one of which is shown at a time? If that's the case, it sounds like a CardLayout is what you need. You basically add all your JPanels to it with unique names, and then you can tell the CardLayout which of them to show.
Michael Myers
2009-05-08 17:22:52
thank you, this sounds like good idea and I will give it a try. I never thought of this, i was trying assign a Jpanal variable to a content area pane and then change the value of Jpanel variable on the basis of button pressed.
2009-05-08 17:31:09
+2
A:
I think CardLayout is probably what you want, but if something like memory usage is a concern and you really want to remove and add a new JPanel/Component, you need to remove the old JPanel and add the new one (with proper constraints and/or index depending on the layout). You'll have to validate() the content pane after you make the switch.