new Ext.form.ComboBox({
 store: new Ext.data.JsonStore({
 idProperty: 'VehicleNo',
 url: '../ajax/test.ashx,
 fields: ['VehicleNo', 'phoneNum']
 }),
 id:'querynodesid',
 emptyText:'快速检索',
hiddenName: 'VehicleNo',
 displayField: 'VehicleNo',
 valueField: 'VehicleNo',
 queryParam: 'VehicleNo',
 forceSelection: true,
 hideTrigger: true,
 queryDelay: 500,
 width:100,
 enableKeyEvents: true,
 minChars: 1,
 mode: 'remote',
 listeners: {
 'select': {
 fn: function (combo, record, index)
 {
 var no = Ext.get("querynodesid").dom.value;
 findByKeyWordFiler2(no);
 }
 }
 }
 })