>XMLSize_t</a> XSObject::getId           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const<code> [virtual]</code></td>
        </tr>
      </table>
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<p>
Optional. 
<p>
Return a unique identifier for a component within this <a class="el" href="classXSModel.html">XSModel</a>, to optimize querying. May not be defined for all types of component. <dl class="return" compact><dt><b>Returns:</b></dt><dd>id uni