求救 Ext js 面板（FormPanel）怎样显示图片列表

var fp = new Ext.FormPanel({ 
        id:'images-view', 
        frame: true, 
        title:'添加设备', 
        labelWidth: 110, 
        width: 850, 
        renderTo:'form-ct', 
        bodyStyle: 'padding:0 10px 0;', 
        itemSelector:'div.thumb-wrap', 
        items: [{ 
    
            xtype:'fieldset', 
            title: '添加设备', 
            autoHeight: true, 
            items: [ 
                      { 
                        xtype: 'textfield', 
                        fieldLabel: '司机姓名', 
                        name: 'drivername', 
                        width:190 
                    }, 
                      { 
                        xtype: 'textfield', 
                        fieldLabel: '司机手机', 
                        name: 'driverphone', 
                        width:190 
                    }, 
                      { 
                      xtype: 'textfield', 
                        fieldLabel: '驾驶证号', 
                        name: 'dirvercard', 
                        width:190 
                    }, 
                    { 
                        xtype: 'textarea', 
                        fieldLabel:'备注', 
                        name: 're', 
                        width:190 
                    }, 
            { 
                xtype: 'radiogroup',//单选按钮 
                fieldLabel: '选择图标', 
                items: [ 
                    {boxLabel: 'Item 1', name: 'rb-auto', inputValue: 1}, 
                    {boxLabel: 'Item 2', name: 'rb-auto', inputValue: 2, checked: true}, 
                    {boxLabel: 'Item 3', name: 'rb-auto', inputValue: 3}, 
                    {boxLabel: 'Item 4', name: 'rb-auto', inputValue: 4}, 
                    {boxLabel: 'Item 5', name: 'rb-auto', inputValue: 5} 
                ] 
            }] 
        }],  
        buttons: [{ 
            text: '提交', 
            handler: function(){ 
              if(fp.getForm().isValid()){ 
                    Ext.Msg.alert('Submitted Values', 'The following will be sent to the server: <br />'+ 
                        fp.getForm().getValues(true).replace(/&/g,', ')); 
                } 
            } 
        },{ 
            text: '重置', 
            handler: function(){ 
                fp.getForm().reset(); 
            } 
        }] 
    }); 
});     求叫各位哥们，这两天在思考一个问题，我开发一个项目，现在遇到一个问题，我们项目的客户端用Ext js 2.0做的，我现在这代码就是一个提交页面，我想用 单选按钮 把数据库里的图标显示在FormPanel面板上：意思就是当我点击按钮添加图标入库（xtype: 'radiogroup'），在这FormPanel面板上我不知道怎么做了 ，第一次用这框架做客服端，现在急死人了 ，跟们帮小弟我一把吧！小弟谢谢了！