如何在禁用的字段集DEMO中启用一个按钮

Question

我想禁用Fieldset中的所有元素，但在其中启用了几个按钮。 Demo:

<fieldset ng-disabled="true">
    <legend>Personalia:</legend>
    Name: <input type="text"><br>
    Email: <input type="text"><br>
    Date of birth: <input type="text">

    <input type="button" value="See More (Enable this!!) " ng-click="ButtonClicked1()" ng-disabled="false"/>
    Somethingelse: <input type="text">
    <input type="button" value="View Details " ng-click="ButtonClicked2()"/> 
</fieldset>

Answer 1

试试这个：

DEMO

HTML：

<fieldset id="form">
    <legend>Personalia:</legend>
    Name: <input type="text" /><br />
    Email: <input type="text" /><br />
    Date of birth: <input type="text" />

    <input id="btn1" type="button" value="See More (Enable this!!) " onclick="ButtonClicked1()" />
    Somethingelse: <input type="text" />
    <input type="button" value="View Details " onclick="ButtonClicked2()"/> 
</fieldset>

脚本：

$('#form :input').prop('disabled', true);
$("#btn1").prop('disabled', false);

Answer 2

我有2个解决方案：

Solution 1: Put your button inside the <legend>

label {
  display: block;
}

<fieldset disabled>
  <legend>
    Personalia:
    <button>See more</button>
  </legend>

  <label>Name: <input></label>
  <label>Email: <input></label>
  <label>Date of birth: <input></label>

  <label>Somethingelse: <input></label>
  <button>View Details</button> 
</fieldset>

Solution 2: Use a “fake” button

你可以使用咏叹调角色来“伪造”按钮role="button"（参见ARIA button role）。请记住添加必要的辅助功​​能，以便为没有显示屏幕或鼠标的用户单击此按钮。重要的属性是role="button"（用于屏幕阅读器）和tabindex="0"（用于键盘导航），还记得为用户没有鼠标时为Enter和Space添加keypress的处理程序。

const disabledButton = document.querySelector('.disabled-button');
const disabledOutput = document.querySelector('.disabled-output');
const enabledButton = document.querySelector('.enabled-button');
const enabledOutput = document.querySelector('.enabled-output');

function increment(output) {
  const current = Number.parseInt(output.textContent);
  output.textContent = `${current + 1}`;
}

disabledButton.addEventListener('click', () => increment(disabledOutput));
disabledButton.addEventListener('keypress', event => {
  if (['Enter', ' '].includes(event.key)) {
    increment(disabledOutput);
  }
});

enabledButton.addEventListener('click', () => increment(enabledOutput));
enabledButton.addEventListener('keypress', event => {
  if (['Enter', ' '].includes(event.key)) {
    increment(enabledOutput);
  }
});

label {
  display: block;
}

[role="button"] {
  -webkit-appearance: button;
  appearance: button;
  cursor: default;
  font-style: normal;
  -webkit-user-select: none;
  user-select: none;
}

<fieldset disabled>
  <legend>Disabled form elements</legend>

  <label>Input 1<input name="input 1"></label>
  <label>Input 2<input name="input 2"></label>
  
  <button
    class="disabled-button"
    name="disabled-button"
  >
    This is disabled
  </button>

  <i
    class="enabled-button"
    role="button"
    tabindex="0"
  >
    This is enabled
  </i>
</fieldset>

<label>
  Disabled button clicks:
  <output class="disabled-output">0</output>
</label>

<label>
  Enabled button clicks:
  <output class="enabled-output">0</output>
</label>