我正在尝试将 countries 数据绑定(bind)到我的 px 组件中，这是一个 typeahead。
Codepen 链接 here .
在 html 中直接绑定(bind)数据时，预先输入会提示国家列表。但是，当我尝试通过从类传递数据时，它没有绑定(bind)。
var AppComponent = ng
.Component({
selector: 'my-app'
})
.View({
template: `<div>
<h3>Case 1 : Working dropdown:</h3>
<px-typeahead placeholder="Enter your search query" local-candidates='["Alabama","Alaska","American Samoa","Arizona","Arkansas","California","Colorado","Connecticut","Delaware","District Of Columbia", "South Dakota","Tennessee","Texas","Utah","Vermont","Virgin Islands","Virginia","Washington","West Virginia","Wisconsin","Wyoming"]'></px-typeahead>
<br>
<h3>Case 2 : Not working dropdown if data is bind from controller:</h3>
<px-typeahead placeholder="Enter your search query" local-candidates={{countries}}></px-typeahead>
{{countries}}
</div>`
})
.Class({
constructor: function() {
this.countries=["United States", "Antigua and/or Barbuda", "Argentina", "Armenia", "Aruba", "Australia", "Austria", "Azerbaijan"]
}
});
认为组件 px-typeahead 期望其属性 local-candidates 中的数据是一个带有 '' 的数组。
我尝试了不同的绑定(bind) countries 的方法，例如 {{countries}}、"countries" 等。但是没有用。
最佳答案
正确的语法(对于双向数据绑定(bind))是[local-candidates]="countries"，这将适用于您的CodePen .
关于javascript - 无法以 Angular 2 绑定(bind)数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46236089/