Ext中向Ext.grid.GridPanel() 添加按钮和点击事件
如何向EXTJS的Ext.grid.Panel()的列添加按钮，并添加点击事件，可以取出所点击行的所有列的值？
谢谢啦！
------解决方案--------------------
我以前写过 添加图片，然后添加图片的点击事件，如何获取所有的列需要你在创建页面的时候给图片一个值。 代码具体怎么写忘的差不多了，等下班回去找找给你说下。 

------解决方案--------------------
给你个例子看吧

Ext.create('Ext.data.Store', {
    storeId:'employeeStore',
    fields:['firstname', 'lastname', 'senority', 'dep', 'hired'],
    data:[
        {firstname:"Michael", lastname:"Scott"},
        {firstname:"Dwight", lastname:"Schrute"},
        {firstname:"Jim", lastname:"Halpert"},
        {firstname:"Kevin", lastname:"Malone"},
        {firstname:"Angela", lastname:"Martin"}                        
    ]
});

Ext.create('Ext.grid.Panel', {
    title: 'Action Column Demo',
    store: Ext.data.StoreManager.lookup('employeeStore'),
    columns: [
        {text: 'First Name',  dataIndex:'firstname'},
        {text: 'Last Name',  dataIndex:'lastname'},
        {
            xtype:'actioncolumn', 
            width:50,
            items: [{
                icon: 'images/edit.png',  // Use a URL in the icon config
                tooltip: 'Edit',
                handler: function(grid, rowIndex, colIndex) {
                    var rec = grid.getStore().getAt(rowIndex);
                    alert("Edit " + rec.get('firstname'));
                }
            },{
                icon: 'images/delete.png',
                tooltip: 'Delete',
                handler: function(grid, rowIndex, colIndex) {
                    var rec = grid.getStore().getAt(rowIndex);