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做到是可以做到,但是要每次刷新页面。请求服务器的。
也就是说,通过服务器输出的值或是保证在request中的值,来定制你页面列表
其实ajax也是要请求服务器的
var provinces = [[1,'北京'],[2,'上海']];
var cities = new Array();
cities[1] = [[11,'海淀'],[22,'东城']];
cities[2] = [[33,'黄埔'],[44,'浦东'],[55,'静安']];
var comboProvinces = new Ext.form.ComboBox({
store: new Ext.data.SimpleStore( {
fields: ["provinceId", "provinceName"],
data: provinces
}),
listeners:{
select:function(combo, record,index){
comboCities.clearValue();
comboCities.store.loadData(cities[record.data.provinceId]);
}
},
valueField :"provinceId",
displayField: "provinceName",
mode: 'local',
forceSelection: true,
blankText:'请选择省份',
emptyText:'请选择省份',
hiddenName:'provinceId',
editable: false,
triggerAction: 'all',
allowBlank:true,
fieldLabel: '请选择省份',
name: 'provinceId',
width: 80
});
var comboCities = new Ext.form.ComboBox({
store: new Ext.data.SimpleStore( {
fields: ["cityId",'cityName'],
data:[]
}),
valueField :"cityId",
displayField: "cityName",
mode: 'local',
forceSelection: true,
blankText:'选择地区',
emptyText:'选择地区',
hiddenName:'cityId',
editable: false,
triggerAction: 'all',
allowBlank:true,
fieldLabel: '选择地区',
name: 'cityId',
width: 80 });