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SWT viewer.getSelection

 
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I am new to SWT. In Swing I could find the count of things in a list or tree.
Now, I have a TreeViewer that can be empty. I need a way to make sure there is something to select before I call viewer.getSelection()

Thanks for any hints....
 
Tim McGuire
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OK. never mind. I can get the number of items selected with viewer.getSelection(). If there are no items, the length of the array this returns will be zero.
 
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