如何在EXTJS中从委托事件中获取记录？

Ext.create('Ext.grid.Panel', {
    title: 'Simpsons',
    store: Ext.data.StoreManager.lookup('simpsonsStore'),
    columns: [
        { text: 'Name',  dataIndex: 'name' },
        { text: 'Email', dataIndex: 'email', flex: 1 },
        { text: 'Phone', dataIndex: 'phone' }
    ],
    listeners: {
        itemclick: function(view, record, item, index, e, eOpts) {
            // 这里可以直接通过参数获取记录
            console.log(record.data.name); // 输出被点击行的名字
        }
    },
    height: 200,
    width: 400,
    renderTo: Ext.getBody()
});

listeners: {
    afterrender: function(grid) {
        grid.getEl().on('click', function(e) {
            var target = e.getTarget('.x-grid-row');
            if (target) {
                var record = grid.getStore().getAt(target.rowIndex);
                console.log(record.data); // 输出记录数据
            }
        }, null, { delegate: '.x-grid-row' });
    }
}