title: Selecting multiple rows in jqGrid tree
body: <p>Is there any way to select multiple rows in a jqGrid tree structure? On single clicking on any row I am providing an inline editing facility and on double clicking I am expanding the row.</p>
  
  <p>If I select rows with the shift key held it should select the rows. I am specifying <code>multiselect: true</code>, but it's not working.</p>
  
  <pre><code>rowNum:10,
  rowList:[10,20,30],
  pager: '#pcolch',
  sortname: 'no',
  treeGridModel:'adjacency',
  autowidth:false,
  sortorder: 'desc',
  caption:"&lt;a href='#'&gt;Projects&lt;/a&gt; &gt; Tasks",
  toolbar:[true,"top"],
  treeGrid: true,
  cellEdit: true,
  sortable: true,
  shrinkToFit :true, 
  //viewrecords: true, 
  height:'auto',
  ExpandColumn:'name',
  cellsubmit : 'clientArray',
  multiselect:true,
  </code></pre>