在不使用模型的情况下创建一个简单的TreeStore - Sencha Touch

Question

我正在尝试创建一个没有模型的简单TreeStore，这就是我所做的：

var store = new Ext.data.TreeStore({
    fields: ['name', 'area', 'children'],
    data: {
        name: 'Budget',
        area: 1,
        children: [{
            name: 'Defense',
            area: 0.5,
            children: []
        }, {
            name: 'Education',
            area: 0.3,
            children: []
        }, {
            name: 'Debt',
            area: 0.2,
            children: []
        }]
    }
});

但是我得到Uncaught TypeError: Cannot call method 'getReader' of undefined，有人可以告诉我我错过了什么吗？

由于

Answer 1

您需要指定使用内存代理：

var store = new Ext.data.TreeStore({
    fields: ['name', 'area', 'children'],
    data: {
        text: 'Budget',
        area: 1,
        children: [{
            name: 'Defense',
            area: 0.5,
            children: []
        }, {
            name: 'Education',
            area: 0.3,
            children: []
        }, {
            name: 'Debt',
            area: 0.2,
            children: []
        }]
    },
    proxy : 'memory'
});