GridData gd_membersTree = new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1);
gd_membersTree.widthHint = 300;
membersTree.setLayoutData(gd_membersTree);
membersTree.setSize(0, 0);
treeViewer.setLabelProvider(new LabelProvider());
treeViewer.setContentProvider(new CdfContentProvider());
if (this.cdf != null){
bind();