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我正在尝试使用 ExtJS 4 API - Ext.ux.grid.filter.ListFilterView 源...中介绍的数据存储(而不是硬编码列表)来实现 Ext.ux.grid.filter.ListFilter 。我在此列标题上看到了一个过滤器选项,但现在我想知道如何从商店加载选项?我用下面的代码尝试了它,但它不起作用。如果选项是硬编码的,则过滤器可以正常工作。

这是一些代码:

var tradeStore = new Ext.data.JsonStore({
        fields: ['tradegroup_id','tradegroup_name'],
        data: [
            { tradegroup_id: 1, tradegroup_name: '10 T-shirts' },
            { tradegroup_id: 2, tradegroup_name: '15 polo' },
            { tradegroup_id: 3, tradegroup_name: '60 Pants' },
            { tradegroup_id: 4, tradegroup_name: '62 Denim' } 
        ],
        autoLoad: {
            // this callback function is actually Ext js 4, how to convert it to Ext js 3?
            callback: function() {
                grid.getView().getHeaderCt().child('#Trademark').initialConfig.filter.options = tradeStore.collect('tradegroup_name'); 
            }
        }
    });

    _filtersPlugin = new Ext.ux.grid.GridFilters({
        encode: encode, // json encode the filter query
        local: local,   // defaults to false (remote filtering)
        filters: [
            {
                type: 'list',
                dataIndex: 'Trademark',
                options: [] 
                // options: ['10 T-shirts', '60 Pants']   // this is harcoded, I don't want this
                store: tradeStore

            },
        ]
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