title: Expanding jqgrid subgrid
body: <p>I have a jqgrid that has a subgrid. How can I expand the subgrid without having to click on the plus sign?</p>
  
  <p>I came across <code>$("#jqgrid_id").expandSubGridRow(rowId);</code> but am unsure which rowId to use to expand the subgrid.</p>
  
  <p>Thanks. </p>