通过服务调用获取数据时extjs存储区收集不工作

我正在使用ext4。我必须使用存储中的数据填充具有不同值的四个组合框。 但在存储上使用collect方法时，它给出了空数组。当存储中有静态数据时，它可以工作，但当使用存储中的代理获取数据时，它不工作

    /* inside view */
    initComponent: function() {
            console.log('inside menu Panel ');
            var me = this;
            var filterCriteriaStore = Ext.create('ITChart.store.StoreForMenu');
            Ext.applyIf(me, {
                defaults:{
                    margin:'20 40 20 20'
                },
                items: [
                        {
                            xtype: 'combo',
                            id: 'territory',
                            store: filterCriteriaStore.collect('territory'),
                            displayField: 'territory',
                            valueField:'territory',
                            maxWidth:'100',
                            margin: '20 40 20 0',
                            value: 'ABC'
                        },
                        {
                            xtype: 'combo',
                            id: 'content',
                            store: filterCriteriaStore.collect('content'),
                            displayField: 'content',
                            valueField:'content',
                            maxWidth:'100',
                            value: 'XYZ'
                        }
                        ]

            });
            me.callParent(arguments);
        }

    /* not working */
    /* inside store */
    proxy: {
            type: 'ajax',
            url : 'http://localhost:8080/ServiceName/getFilterCriteriaExt',
            reader: {
                type: 'json',
                root: 'responseDTO'
            }/*,
            headers: {
                'Content-Type': 'application/json; charset=utf-8; Cache-Control: no-cache'
            }*/
            //actionMethods: 'POST'
        },

    /* working */
    /* inside store */
    data : [
{"content":"XYZ","type":"Song","territory":"ABC","payment":"Paid","errorCode":""},{"content":"Music","type":"Album","territory":"ABC","payment":"Paid","errorCode":""},{"content":"XYZ","type":"Song","territory":"IND","payment":"Paid","errorCode":""},
{"content":"Music","type":"Album","territory":"ABC","payment":"Paid","errorCode":""},
{"content":"Movie","type":"Song","territory":"CHINA","payment":"NotPaid","errorCode":""},
{"content":"Music","type":"Song","territory":"IND","payment":"NotPaid","errorCode":""}
    ]

---

您确定商店已在该点加载吗？否则，您必须首先加载存储，因为当您定义静态数据时，它不必实际加载

var filterCriteriaStore = Ext.create('ITChart.store.StoreForMenu');
filterCriteriaStore.load();

---

您好，当我在组合框中使用filterCriteriaStore作为存储时，它工作正常，所有值（重复）都在组合框中，但当我使用filterCriteriaStore.collect（“某些列名”）时，它就不工作了。这是因为组合框将加载存储本身，而您是collect（“…”）函数给出了存储的一个子集，但如果尚未加载，则它将无法工作。调用collect函数时，您是否尝试过查看存储区中的内容？您好，正如您所提到的，我尝试过filterCriteriaStore.load（）。我还将商店的自动加载设置为true。