如果我不使用自定义元素,我无法将模型绑定到表格。自定义元素工作正常,但是当我尝试手动绑定模型而不创建自定义组件时,不会显示任何数据。有任何想法吗?
custom_table.html
<!DOCTYPE html>
<html>
<body>
<polymer-element name="custom-table" extends="div" apply-author-styles>
<template>
<table>
<tbody>
<tr template repeat="{{people}}">
<td>{{firstName}}</td>
<td>{{lastName}}</td>
</tr>
</tbody>
</table>
</template>
<script type="application/dart" src="custom_table.dart"></script>
</polymer-element>
</body>
</html>
custom_table.dart
import 'package:polymer/polymer.dart';
class Person {
String firstName;
String lastName;
Person(this.firstName, this.lastName);
}
@CustomTag('custom-table')
class CustomTable extends PolymerElement with ObservableMixin {
List people = [new Person('Bob', 'Smith'), new Person('Alice', 'Johnson')];
}
没有自定义元素版本:
聚合物测试.html
<!DOCTYPE html>
<head>
<script src="packages/polymer/boot.js"></script>
</head>
<html>
<head>
<meta charset="utf-8">
<title>Polymer test</title>
<link rel="stylesheet" href="polymer_test.css">
</head>
<body>
<h1> Table test </h1>
<template id="tableTemplate" repeat>
<table>
<tbody>
<tr template repeat="{{ people }}">
<td>{{firstName}}</td>
<td>{{lastName}}</td>
<tr>
</tbody>
</table>
</template>
<script type="application/dart" src="polymer_test.dart"></script>
</body>
</html>
聚合物测试.dart
import 'dart:html';
import 'package:polymer/polymer.dart';
import 'package:fancy_syntax/syntax.dart';
class Person {
String firstName;
String lastName;
Person(this.firstName, this.lastName);
}
class Message extends Object with ObservableMixin {
List<Person> people = toObservable([new Person('Bob', 'Smith'), new Person('Alice', 'Johnson')]);
}
main() {
var msgModel = new Message();
TemplateElement template = query('#tableTemplate');
template.bindingDelegate = new FancySyntax();
template.model = msgModel;
}