var cellEditing = Ext.create('Ext.grid.plugin.CellEditing', {
    clicksToEdit: 1
});

var grid_xiaopiao = Ext.create('Ext.grid.Panel', {
id:'grid_xiaopiao',
    region : 'center',
    store:Store_mx,
stateful : true,
stripeRows : true,
margins : '0 5 5 5',
columnLines : true,
plugins: [cellEditing],
height:'200',
disableSelection : false,// 值为TRUE，表示禁止选择行
frame : false,
    columns: [new Ext.grid.RowNumberer(),
        {
    header: '变更项目',
    dataIndex: 'changeproject',
    width : 100
    },{
    header: '变更原因',
    dataIndex: 'os_price_cg_cause',
    width : 160
    },{
        header: '原价格￥',
    dataIndex: 'os_machining_price',
    width : 80
        },{
        header: '现价格￥',
    dataIndex: 'os_real_jgf',
                width: 80,
                editor: {
                 xtype: 'numberfield',
                 allowBlank: false,
                 minValue: 0,
                 maxValue: 100000
             }
        },
请教高手，如何获取‘现价格’中edit后的值