在那一例加上一个配置项editor : new fm.ComboBox( {
store : new Ext.data.JsonStore({
fields: ['areaCode', 'areaName'],
root:'rows',
url:'/sbjjjc/admin/sbparam/findArea.action?isShowAllItem=1'
}), typeAhead: true,
mode: 'remote',
ref : '../area',
editable :false,
forceSelection: true,
displayField : 'areaName',
valueField : "areaCode",
triggerAction: 'all',
hiddenName: 'areaCode', }),