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SWT List Selection [message #629001]

Sat, 25 September 2010 19:51

larsk

Messages: 22
Registered: October 2009
Location: Sweden

Junior Member

I have added a SelectionListener to a SWT List to know when the selection has changed.
But how do I know what was selected before this new selection? Is there any way to get that information?

Edit: If figured it out. Don't know why I didn't figure it out from the beginning. I just stored the List's selection to another variable that I checked the next time I selected the List.

[Updated on: Sat, 25 September 2010 20:21]

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Re: SWT List Selection [message #629087 is a reply to message #629001]

Mon, 27 September 2010 07:15

Daniel KrÃ¼gler

Messages: 853
Registered: July 2009

Senior Member

On 25.09.2010 21:51, larsk wrote:
> I have added a SelectionListener to a SWT List to know when the
> selection has changed.
> But how do I know what was selected before this new selection? Is there
> any way to get that information?

You have to administrate a selection history by yourself.
Why do you not query the initial selection after the creation
of the widget? Typically you will also intentionally set a
specific initial selection, this is the right place where you
could start with your history.

HTH & Greetings from Bremen,

Daniel Krügler

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