ss='options-panel'>
        <b>Search:</b>
        <hr/>
        <div style='padding:6px;'>
          <filter-form id='filter-form' threshold='{{percentCompleteThreshold}}' searchString='{{searchString}}'></filter-form>

          <br/>

          <h2>Demonstrates:</h2>
          <ul>
            <li>implementing expand/collapse as a filter for DataView</li>
          </ul>
          <h2>View Source:</h2>
          <ul>
            <li><A href="https://github.com/bwu-dart/bwu_datagrid/blob/master/example/sr