code: public void setDropEnabled(boolean enabled) {
  
          if ((m_dropEnabled != null) && (m_dropEnabled.booleanValue() == enabled)) {
              return;
          }
          m_dropEnabled = Boolean.valueOf(enabled);
      }
docs: Enables/disables dropping.<p>
  
  @param enabled <code>true</code> to enable, or <code>false</code> to disable