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Java™
by example!
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How do I disable some of the elements in my JComboBox?
We wrap a JComboBox element in our ConditionalItem object that includes a boolean variable isEnabled. Now, in order to change the default behavior of the JComboBox, we need to handle two things: first blur out the elements that are disabled using our own renderer and second ensure the disabled elements cannot be selected by adding a ActionListener that selects the old selected element in case a disabled item was selected.
Main.java:
Further Information
Author of answer: Joris Van den Bogaert
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In-house 
