title: Verifying a Text in SWT and trying to clear it but doesn't work
body: <p>I am trying to verify a text in SWT to allow only binary numbers and it works, but my problem is that I have a button that I need to reset the field but it doesn't work.</p>
  
  <p>Here is the code    </p>
  
  <pre><code>DACMUX.addVerifyListener(new VerifyListener() {
  
              public void verifyText(VerifyEvent e) {
                  e.doit = false;
  
                  char myChar = e.character;
                  if (myChar == '1' || myChar == '0' || myChar == '\b'){
                      e.doit = true;
                  }
              }
          });
  
  reset.addSelectionListener(new SelectionListener() {
  
              @Override
              public void widgetSelected(SelectionEvent e) {
              DACMUX.setText(""); 
  
              }
  
              @Override
              public void widgetDefaultSelected(SelectionEvent e) {
                  // TODO Auto-generated method stub
  
              }
          });
  </code></pre>