Ext 日期比较

Question

{xtype:'datefield',id:'startTime',width:120,format:'Y-m-d',renderer:function(value,cellmeta,record,rowIndex,columnIndex,store)
                                                                                                                                                                    {
                                                                                                                                                                    var startTime=Ext.getCmp('startTime').value;
                                                                                                                                                                     var endTime=Ext.getCmp('endTime').value;
                                                                                                                                                                     alert(startTime);
                                                                                                                                                                     if(startTime>endTime)
                                                                                                                                                                     {
                                                                                                                                                                       Ext.Msg.alert('不能小于开始时间');
                                                                                                                                                                     }
                                                                                                                                                                    }
                                                
                                                
                                                                                     } ,'到',{xtype:'datefield',id:'endTime',width:120,format:'Y-m-d'},大家帮忙看一下哪里错了。执行的时候不显示

Answer 1

你报的js错误应该是“Ext.getCmp(..)为空或不是对象”
当然不行啦，你在比较时间的时候，  endTime 还没添加进去呢，在 alert(startTime);后
 alert(typeof(Ext.getCmp('endTime ')));  看看，肯定等于'undefined',建议你先将所有的控件进去，然后通过按钮的时间来比较。