Ext对下拉列表value值的读取
var combox = new Ext.form.ComboBox({id:'likeName',store: comboxStore,displayField:'likeName', //显示的值valueField:'likeType', //提交的值hiddenName:'likeType', //提交的值typeAhead: true,width:120,mode: 'local', //本地信息forceSelection: true,triggerAction: 'all',emptyText:'选择查询类型...',selectOnFocus:true});//读取Ext.getCmp("likeName").getValue(); //读取到的是value值，而不是显示的值?