ExtJS 错误“TypeError：Ext.state 未定义”答案

【问题标题】：ExtJS Error "TypeError: Ext.state is undefined"ExtJS 错误“TypeError：Ext.state 未定义”
【发布时间】：2013-11-28 20:03:28
【问题描述】：

我是 ExtJS 的新手。我看到了一个示例并将其复制到一个空白页面上。当我运行此页面时，出现错误：

TypeError: Ext.state is undefined Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));

这是我正在尝试的完整代码：

渡//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>ExtJS CRUD</title>
    <link href="extjs/resources/ext-theme-neptune/ext-theme-neptune-all.css" rel="stylesheet" type="text/css" />
    <script type="text/javascript" src="extjs/ext-debug.js"></script>
</head>
<body>
    <script language="javascript" type="text/javascript">
        Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));

        Ext.create('Ext.form.ComboBox', {
            fieldLabel: 'Choose',
            store: [[1, "Harpo"], [2, "Chico"], [3, "Groucho"]],
            displayField: 'name',
            typeAhead: true,
            forceSelection: true,
            valueField: 'abbr',
            renderTo: Ext.getBody(),

            stateful: true,
            stateId: 'myIdentifierUniqueAmongAllMyStatefulComponentsUsedToStoreAndFetchMyState',

            stateEvents: ['select'],

            getState: function (me) {
                // On any of the stateEvents, the framework runs this.
                // "Hey component, what do you want me to remember for you?
                return {
                    value: this.getValue()
                };
            },
            applyState: function (state) {
                // On component initialization, the framework runs this.
                // "Hey component, here's that object I saved for you
                this.setValue(state.value);
            }

        });
    </script>
</body>
</html>

我错过了什么？

【问题讨论】：

标签： extjs extjs4

【解决方案1】：

你需要它：

Ext.require('Ext.state.*');

【讨论】：

我替换了 Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));与 Ext.require('Ext.state.*'); Ext.state.Manager.setProvider(Ext.create('Ext.state.CookieProvider'));但它没有效果。