pager2

//create grid
    var grid = Ext.create('Ext.form.Panel', {
        //title: 'My VM Instance List',
        width:'100%',
        height: 300,
        frame: true,
        store: myStore,
        loadMask: true,    
items: [{
            columnWidth: 1,
            xtype: 'gridpanel',
            store: myStore,
            columns:
            [
            { header: 'jobInstanceId', dataIndex: 'jobInstanceId', hidden:true},
            { header: 'submitTime', dataIndex: 'submitTime', hidden:true},
            { header: 'startTime', dataIndex: 'startTime', hidden:true},
            { header: 'endTime', dataIndex: 'endTime', hidden:true},
            { header: 'jobTaskTotalCount', dataIndex: 'jobTaskTotalCount', hidden:true} ]
        }],
    dockedItems: [
    {
        xtype: 'pagingtoolbar',
        store: myStore,  // same store GridPanel is using
        dock: 'bottom', //分页 位置
        emptyMsg: '没有数据',
        displayInfo: true,
        displayMsg: '当前显示{0}-{1}条记录 / 共{2}条记录 ',
        beforePageText: '第',
        afterPageText: '页/共{0}页'
    }],
    renderTo: Ext.get('contents')
     });