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Tab order control...

Posted on 1998-05-26
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Last Modified: 2010-04-16
I have a panel which contains textfields and choice list components.  The default tab order is whatever order that the components are added, but I want to change that.  What is the best way to override the default tab ordering and create your own tab ordering?
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Question by:stepma
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by:aziz061097
ID: 1221486
The order of add statements defines the Tab order. Just change the order of the add statements . If you want the display in a particular format use some layout manager to place the componenents as you want but the add statements must be in the order of your tab sequence
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by:froderik
ID: 1221487
Another way to do it that I haven't tried but just came to think about is to catch KeyEvents for the Panel and use setFocus() method calls to control the order it the key pressed is tab.
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dufort earned 50 total points
ID: 1221488
Basically, there are two ways of managing focus on your forms.

FIRST: write a FocusListener class, which will respond to the FocusEvent event with the methods focusGained() and focusLost(). See the Java tutorial for more details at:
http://java.sun.com/docs/books/tutorial/ui/components/focuslistener.html
(NOTE: I don't know if you have to register to the Java Developers Connection to access this page. Anyway, registering is free.)

SECOND: if your are using JFC components, look at the meyhods setNextFocusableComponent() and so on, in com.sun.java.swing.JComponent. For standard AWT components, use the requestFocus() method on the next component to set focus. How to know when to set focus? Implement interface FocusListener on your form.

Hope it helped!

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by:evijay
ID: 1221489
You can seperate focus traversal into a focusmanager class to which you will give a list of components. To change focus traversal order, pass the same list again in a different order. The focusmanager implements focus listener interface and traverses the focus using requestFocus if the registered listeners on focus traversal agree for that.

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