extjs grid行插入进度条

 1 {
 2             xtype: ‘gridcolumn‘,
 3             width: 110,
 4             dataIndex: ‘chScore‘,
 5             text: ‘进度‘,
 6             renderer: function (value, metaData, record) {
 7                 var id = Ext.id();
 8                 metaData.tdAttr = ‘data-qtip="‘+value+‘%"‘;
 9                 Ext.defer(function () {                         
10                     Ext.widget(‘progressbar‘, {
11                         renderTo: id,
12                         value: value / 100, 
13                         height:20,
14                         width: 100,
15                         text:value+‘%‘
16                     });                     
17                 }, 50);
18                 return Ext.String.format(‘<div id="{0}"></div>‘, id);
19             }
20         }