javascript - HTML 可编辑表 : Add new row including radio buttons

Question

假设我有一个可编辑的 html 表格。在这些表格单元格之一中，它包含单选按钮。我想要的是添加一个新行按钮。当我单击按钮时，新行应包含与新组相同的单选按钮。

比方说，当页面最初加载时，表格类似于:

<table id="exp02Table" class="responsive-table">
  <thead>
    <tr class="bengaliText">
      <th> (P)</th>
      <th> (a cm)</th>
      <th> (b cm)</th>
      <th> (c cm)</th>
      <th> L=(a-b) cm</th>
      <th> H = (c-b) cm </th>
      <th> P = H±h</th>
      <th> PV = (H±h)*L</th>
    </tr>
  </thead>
  <tbody id="exp02TBody">
    <tr>
      <td>
        <p> <label> <input value="0" checked name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপ</span> </label> </p>
        <p> <label> <input value="1" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের বেশী</span> </label> </p>
        <p> <label> <input value="2" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের কম</span> </label> </p>
      </td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
    </tr>
  </tbody>
</table>

You can see the first column has radio buttons with group1 group name.

我想说的是，下次当我单击“添加新行”按钮时，新行应该

• 包含具有新组名称组 2、组 3 .... 的相同单选按钮，并且应选中第一个单选选项

• 和其他td(表数据)应该是内容可编辑的，没有其中的值:

  <tr>
    <td>
      <p> <label> <input value="0" checked name="group2" type="radio" /> <span>বায়ু মন্ডলের চাপ</span> </label> </p>
      <p> <label> <input value="1" name="group2" type="radio" /> <span>বায়ু মন্ডলের চাপের বেশী</span> </label> </p>
      <p> <label> <input value="2" name="group2" type="radio" /> <span>বায়ু মন্ডলের চাপের কম</span> </label> </p>
    </td>
    <td contenteditable></td>
    <td contenteditable></td>
    <td contenteditable></td>
    <td contenteditable></td>
    <td contenteditable></td>
    <td contenteditable></td>
    <td contenteditable></td>
  </tr>
  

Answer 1

为了在与某种元素(例如按钮)交互后向文档对象模型 (DOM) 添加新对象，可能需要一些 JavaScript。请参阅以下 fiddle :

在纯 JavaScript 中:

let i = 1;
function AddRow() {
  i++;
  let tbody = document.getElementById("exp02TBody");
  let tr = document.createElement("tr");
  
  //The HTML for the row. Obviously not as readable in JavaScript so there might a bit cleaner solution to this but at least it's functional:
  tr.innerHTML =
    "<td><p><label><input value='0' checked name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপ</label></p><p><label><input value='1' name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপের বেশী</label></p><p><label><input value='2' name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপের কম</label></p></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td>";
    
  tbody.appendChild(tr);
}

<table id="exp02Table" class="responsive-table">
  <thead>
    <tr class="bengaliText">
      <th> (P)</th>
      <th> (a cm)</th>
      <th> (b cm)</th>
      <th> (c cm)</th>
      <th> L=(a-b) cm</th>
      <th> H = (c-b) cm </th>
      <th> P = H±h</th>
      <th> PV = (H±h)*L</th>
    </tr>
  </thead>
  <tbody id="exp02TBody">
    <tr>
      <td>
        <p> <label> <input value="0" checked name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপ</span> </label> </p>
        <p> <label> <input value="1" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের বেশী</span> </label> </p>
        <p> <label> <input value="2" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের কম</span> </label> </p>
      </td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
    </tr>
  </tbody>
</table>
<button onclick="AddRow()">Add row</button>

我添加了<button onclick="AddRow()">Add row</button>到你的 DOM(在 HTML 中)，我添加了一个带有函数 Addrow() 的脚本(请参阅 fiddle 以供引用)。

在 jQuery 中:

$(document).ready(function() {
  let i = 1;
  $("#row-button").on("click", function() {
    i++;
    $("#exp02TBody").append("<tr><td><p><label><input value='0' checked name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপ</label></p><p><label><input value='1' name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপের বেশী</label></p><p><label><input value='2' name='group-" + i + "' type='radio'> বায়ু মন্ডলের চাপের কম</label></p></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td><td contenteditable></td></tr>");
  });
});

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="exp02Table" class="responsive-table">
  <thead>
    <tr class="bengaliText">
      <th> (P)</th>
      <th> (a cm)</th>
      <th> (b cm)</th>
      <th> (c cm)</th>
      <th> L=(a-b) cm</th>
      <th> H = (c-b) cm </th>
      <th> P = H±h</th>
      <th> PV = (H±h)*L</th>
    </tr>
  </thead>
  <tbody id="exp02TBody">
    <tr>
      <td>
        <p> <label> <input value="0" checked name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপ</span> </label> </p>
        <p> <label> <input value="1" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের বেশী</span> </label> </p>
        <p> <label> <input value="2" name="group1" type="radio" /> <span>বায়ু মন্ডলের চাপের কম</span> </label> </p>
      </td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
      <td contenteditable></td>
    </tr>
  </tbody>
</table>

<button id="row-button">Add row</button>