MessageBox mb = new MessageBox(getParent().getShell(), SWT.ICON_QUESTION|SWT.YES|SWT.NO);
mb.setText("Desativar curso.");
mb.setMessage("Tem certeza que deseja "+disableCourseButton.getText()+" "+ selectedItens.length + " cursos?");
if(mb.open() == SWT.YES){
for (int i = 0; i < selectedItens.length; i++) {
system.execute(new DisableOrEnableCourse(selectedItens[i].getText(0), (disableCourseButton.getText().equals("Ativar")? true : false)));
if(disableCourseButton.getText().equals("Ativar")){
selectedItens[i].setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_WIDGET_FOREGROUND));
selectedItens[i].setImage(new Image(getDisplay(), "img/course.png"));
} else {
selectedItens[i].setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_WIDGET_DARK_SHADOW));