easyui cell hover event

 1 $("#tblGrid").datagrid({
 2     onLoadSuccess: function (data) {
 3         $(".easyui-tooltip").tooltip({
 4             //   content:'<span class="easyui-tooltip">This is the tooltip message.</span>',
 5             onShow: function () {
 6                 $(this).tooltip('tip').css({
 7                     color: '#fff',
 8                     background: '#055395',
 9                     border: '1px solid #2196F3',
10                     borderRadius: '5px',
11                 });
12             }
13         })
14     }
15 });

1 function showTitle(value, data, index) {
2             return '<span title='+value+'  class="easyui-tooltip">' + value + '</span>';
3         }

1 <thead>
2     <tr>
3         <th data-options="field:'name',width:5,formatter:showTitle">姓名</th>
4     </tr>
5 </thead>