EXT同时隐藏field和label

function hideField(field)       {          field.disable();// for validation          field.hide();          field.getEl().up('.x-form-item').setDisplayed(false); // hide label       }         function showField(field)       {          field.enable();          field.show();          field.getEl().up('.x-form-item').setDisplayed(true);// show label       }           this.userTypeField=new Ext.ux.EnumField({                   hiddenName:'userinfo.userType',                   fieldLabel:'用户类型',                   tableName:'userinfo',                   fieldName:'userType',                   allowBlank : false,                   listeners:{                           select:function(){                                   var value = this.getValue();                                   //Ext.log(value);                                   if(value == '2')                                   {                                           //formPanel.stationidField.setVisible(false); //这种方法只能隐藏field而不能隐藏field                                             //formPanel.hospitalidField.setVisible(true);   对应的label,用下面的方法则可以一起隐藏.                                                                                      hideField(formPanel.stationidField);                                           showField(formPanel.hospitalidField);                                   }                                   if(value == '3')                                   {                                           //formPanel.hospitalidField.setVisible(false);                                           //formPanel.stationidField.setVisible(true);                                           hideField(formPanel.hospitalidField);                                                           showField(formPanel.stationidField);                                                           }                                   if(value == '1' || value == '4')                                   {                                           //formPanel.hospitalidField.setVisible(true);                                           //formPanel.stationidField.setVisible(true);                                                                                   showField(formPanel.hospitalidField);                                           showField(formPanel.stationidField);                                   }                           }                   }           });