Description zzzz 2012-01-29 08:46:52 EST

If an item has subitems, when setting subitems to zero, the expanded state never change, for example if the node was expanded, remain expanded.
Then when the sub items is zero, you can't more change the expand state

In my opionion this is not correct, and when use a virtual tree, the problem is propagated in the SetData event


Forcing setExpanded(false) is not a solution because this can generate unwanted selections event 


Code:


        Display display = new Display ();
        Shell shell = new Shell(display);
     
        Tree t = new Tree(shell, SWT.NONE);
        t.setBounds(0,0,400,400);

        TreeItem t1 = new TreeItem(t, SWT.NONE);
        t1.setText("A");
        TreeItem t2 = new TreeItem(t1, SWT.NONE);  
        t2.setText("B");

        
        t1.setExpanded(true);
        System.out.println( "expanded = " + t1.getExpanded() );

        t1.setItemCount(0);
        System.out.println( "expanded = " + t1.getExpanded() );

        t1.setExpanded(false);
        System.out.println( "expanded = " + t1.getExpanded() );
        
        shell.open ();
        while (!shell.isDisposed ()) {
            if (!display.readAndDispatch ()) display.sleep ();
        }
        display.dispose ();