我已经使用以下代码创建了一个FilteringSelect：

var type = $('fMatlTypeId').value;

    var eSelect, dataStore;
    require([
        "dijit/form/FilteringSelect",
        "dojo/store/Memory",
        "dojo/data/ObjectStore",
        "dojo/_base/xhr",
        "dojo/parser",
        "dojo/domReady!"
    ], function(FilteringSelect, Memory, ObjectStore, xhr){
        xhr.get({
            url: 'adminservices/admin/materialType/assignedFacilities/' + type + '/',
            handleAs: "json"
        }).then(function(data){
            dataStore =  new ObjectStore({ objectStore:new Memory({ data: data.items }) });

            eSelect = new FilteringSelect({
                id: 'fMatlTypeFacilities',
                store: dataStore, 
                searchAttr: 'nameStatus',
                queryExpr: '*${0}*',
                ignoreCase: true,
                autoComplete: false,
                style: 'width:200px',
                required: true
            }, document.createElement('div'));

            // Append to the div
            $('FS_MatlTypeFacilities').innerHTML = '';
           dojo.byId("FS_MatlTypeFacilities").appendChild(eSelect.domNode);

            eSelect.startup();

            eSelect.setValue(dataStore.objectStore.data[0].id);
        });
    });

现在，如果数据在后端发生更改，我该如何重新加载它？
我已经尝试了下面的代码，当我在Firebug中调试它时，商店得到了更新，但过滤选择没有更新。

var eSelect, dataStore;
    require([
        "dijit/form/FilteringSelect",
        "dojo/store/Memory",
        "dojo/data/ObjectStore",
        "dojo/_base/xhr",
        "dojo/parser",
        "dojo/domReady!"
    ], function(FilteringSelect, Memory, ObjectStore, xhr){
        xhr.get({
            url: 'adminservices/admin/materialType/assignedFacilities/' + type + '/',
            handleAs: "json"
        }).then(function(data){
            dataStore =  new ObjectStore({ objectStore:new Memory({ data: data.items }) });
            dataStore.fetch();

            eSelect = dijit.byId('fMatlTypeFacilities');
            eSelect.store.close();
            eSelect.store = dataStore;
            eSelect.startup();
         });
     });

有什么建议吗？
我发现唯一可行的方法就是每次都销毁小部件，然后让它重建。所以我在上面的创建代码之前添加了下面的代码。但是必须有一种方法可以简单地重新加载它。

if (dijit.byId('fMatlTypeFacilities')) dijit.byId('fMatlTypeFacilities').destroy();