我有一个日期字段:editor:newExt.form.DateField({/*Ext.ux.form.Custom*/allowBlank:true,format:'m/d/Y',width:120,enableKeyEvents:true,listeners:{'keydown':function(field_,e_){field_.onTriggerClick();e_.stopEvent();returnfalse;},'focus':function(field_){field_.onTriggerClick();e_.stopEvent();returnfalse;}}}