Re: Action performed event handler fires twice

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#798

From: leov
Date: Wed, 30 Jun 2004 10:16

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BrianW wrote:

> The problem is that the event handler is being called twice, so the text
> ends up in the text area twice. I read somewhere that it may be because the
> event handler doesn't register completion until the input stream has closed,
> so that the next time it checks for events, it hasn't been satisfied yet and
> gets fired again.

Right, because the ListSelectionEvent from the JComboBox fires twice, 
first time for unselecting, second time for selecting the new item.
You can select just one by using the getValueIsAdjusting() method of the 
event e.g.

doSomething(ListSelectionEvent e)
{
     if (!e.getValueIsAdjusting()) justDoThatThing();
}

leo

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From: leov <leov@emailaccount.com>
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Subject: Re: Action performed event handler fires twice
Date: Wed, 30 Jun 2004 12:16:16 +0200
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