Angular 2 Material 输入焦点不起作用 [英] Angular 2 Material input focus not working

问题描述

输入位于模态对话框内.我不知道为什么它不起作用.我查看了官方文档，并将焦点列为您可以传递给元素的内容，但它不起作用?

The inputs are inside of a modal dialog. I have no idea why it is not working. I looked at the official docs and it listed focus as something you can pass to the element but it's not working?

有人知道为什么吗?

Angular Material - 输入文档

<form class="example-form">

  <md-input-container class="example-full-width" style="width: 300px; padding: 5px; border-radius: 10px;">
    <input mdInput type="email" name="to" placeholder="Email">
    <md-error></md-error>
  </md-input-container>

  <md-input-container focus focused>
    <input mdInput type="text" name="a" placeholder="zzzz" focus focused (focus)="">
  </md-input-container>

</form>

推荐答案

您的尝试无效，因为:

• focused 是驱动 mdInputContainer 上的 mat-focused 类的属性.您可以使用它来了解您的输入是否集中.您无法使用它来更改焦点状态.
• focus 是 mdInput 上的一种方法，可让您以编程方式聚焦输入.例如，您可以调用 myInput.focus() ，其中 myInput 类似于 ViewChild('myInput') .

• focused is a property driving the mat-focused class on mdInputContainer. You can use it to know whether your input is focused or not. You cannot use it to change the focus state.
• focus is a method on mdInput that lets you programmatically focus the input. You can call the myInput.focus() with myInput being something like ViewChild('myInput') for instance.

但是实现您想要的最简单的方法是使用标准的autofocus 属性:

But the simplest way to achieve what you want is to use the standard autofocus attribute :

<md-input-container>
    <input mdInput type="text" name="a" placeholder="zzzz" autofocus>
</md-input-container>

这篇关于Angular 2 Material 输入焦点不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！