ExtJS4 表格的嵌套 rowExpander

今天做一个grid，里面的数据须要带明细，思来想去还是搞个表格嵌套吧！看下图

对于grid中每一条记录点击左边的+号能展开一个明细的子表格 全部数据包含列名均从后台获得，子表格的数据临时在本地以做測试

在此贴一些代码留下记录

function displayInnerGrid(renderId) {

    //Model for the inside grid store
    Ext.define(‘TestModel‘, {
        extend: ‘Ext.data.Model‘,
        fields: [
            { name: ‘Field1‘ },
            { name: ‘Field2‘ },
            { name: ‘Field3‘ }
        ]
    });

    //dummy data for the inside grid
    var dummyDataForInsideGrid = [
        [‘a‘, ‘a‘, ‘a‘],
        [‘b‘, ‘b‘, ‘b‘],
        [‘c‘, ‘c‘, ‘c‘]

    ];

    var insideGridStore = Ext.create(‘Ext.data.ArrayStore‘, {
        model: ‘TestModel‘,
        data: dummyDataForInsideGrid
    });

    innerGrid = Ext.create(‘Ext.grid.Panel‘, {
        store: insideGridStore,
        selModel: {
            selType: ‘cellmodel‘
        },
        columns: [
            { text: "明细1", dataIndex: ‘Field1‘ },
            { text: "明细2", dataIndex: ‘Field2‘ },
            { text: "明细3", dataIndex: ‘Field3‘ }
        ],
        columnLines: true,
        autoWidth: true,
        autoHeight: true,
        //width: 400,
        //height: 200,
        frame: false,
      //  iconCls: ‘icon-grid‘,
        renderTo: renderId
    });

   /*  innerGrid.getEl().swallowEvent([
                ‘mousedown‘, ‘mouseup‘, ‘click‘,
                ‘contextmenu‘, ‘mouseover‘, ‘mouseout‘,
                ‘dblclick‘, ‘mousemove‘
            ]); */

}

  function destroyInnerGrid(record) {

    var parent = document.getElementById(record.get(‘id‘));
    var child = parent.firstChild;

    while (child) {
        child.parentNode.removeChild(child);
        child = child.nextSibling;
    }

}

grid_huizong.view.on(‘expandBody‘, function (rowNode, record, expandRow, eOpts) {
	//console.log(record.get(‘id‘));
        displayInnerGrid(record.get(‘id‘));
    });

    grid_huizong.view.on(‘collapsebody‘, function (rowNode, record, expandRow, eOpts) {
        destroyInnerGrid(record);
    });

以上代码为grid绑定事件。。详细代码啥意思应该能看懂

注意在定义grid的时候使用

plugins: [{
        ptype: ‘rowexpander‘,
        rowBodyTpl : [
                ‘<div id="{id}">‘,
                ‘</div>‘
            ]
		}],

这个是rowexpander插件。。网上有人说用的时候须要引用，可是我没引用什么也能够用了？

注意上面三段代码中关键的id，这个id你能够改，可是须要改成后台发过来的数据中fields中的第一项。。我这个样例后台发过来的fields第一项是id

最后给一个我參考的链接  这里