我正在使用Polymer的数据绑定来显示结构化数据。单击按钮后,我想更改数据项,但显示的driver.findElement(By.xpath("//p[@style='text-align: center;']/em/strong[text()='TEST']")
不会更改。
以下示例中我做错了什么?
我尽可能地简化了!
{{item.name}}
答案 0 :(得分:1)
在'items.0.name'
中使用'items#0.name'
代替repeater.set()
,{
的预定义items
数组中#repeater
不匹配。这是一个有效的演示。
<html>
<head>
<title>Template me</title>
<script src="https://rawgit.com/webcomponents/webcomponentsjs/master/webcomponents.js"></script>
<base href="https://cdn.rawgit.com/download/polymer-cdn/1.0.1/lib/">
<link rel="import" href="polymer/polymer.html">
<link rel="import" href="paper-button/paper-button.html">
</head>
<body class="fullbleed">
<template id="bind" is="dom-bind">
<script>
bind.changeName = function() {
var repeater = document.querySelector('#repeater');
//repeater.items[0].name = 'New Name' //doesn't work
repeater.set('items.0.name', 'Another New Name'); //<==== Now it works ===
}
</script>
<paper-button on-click="changeName">Change name</paper-button>
<template id="repeater" is="dom-repeat" items='[{"name": "Foo"}, {"name": "Bar"}]'>
<p>{{item.name}}</p>
</template>
</template>
</body>
</html>
&#13;