javascript - 向表格的每一行添加按钮以删除所述行
问题描述
只是寻找解决此问题的简单解决方案,请考虑以下代码:
<!DOCTYPE html>
<html>
<head>
<title>Javascript - Add HTML Table Row </title>
<meta charset="windows-1252">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<form>
<script>
function addRow()
{
// get input values
var name = document.getElementById('name').value;
var currentAge =
document.getElementById('currentAge').value;
var Birthday = document.getElementById('Birthday').value;
var carType = document.getElementById('carType').value;
var Delete = document.getElementById('Delete').value;
var table = document.getElementsByTagName('table')[0];
var newRow = table.insertRow(table.rows.length/2+1);
var cel1 = newRow.insertCell(0);
var cel2 = newRow.insertCell(1);
var cel3 = newRow.insertCell(2);
var cel4 = newRow.insertCell(3);
var cel5 = newRow.insertCell(4);
cel1.innerHTML = name;
cel2.innerHTML = currentAge;
cel3.innerHTML = Birthday;
cel4.innerHTML = carType;
cel5.innerHTML = Delete;
function myFunction(){
var x = document.getElementById("table").rows.length;
document.getElementById("demo").innerHTML = "Found " + x + " tr
elements in the table.";
}
</script>
</form>
</head>
<style>
table, th {
border: 1px solid black;
}
tbody td{
padding: 30px;
}
tbody tr:nth-child(odd){
background-color: #F4BC01;
color: #ABC412;
}
$("")
</style>
<body>
<h2>Basic HTML table</h2> <button onclick="myFunction()">Press me for
elements amount</button>
<p id ="demo"></p>
Name: <input type="text" name="name" id="name" /><br/><br/>
Age: <input type="text" name="currentAge" id="currentAge" /><br/><br/>
Date of Birth <input type="date" name="Birthday" id="Birthday" /><br/>
<button onclick="addRow();">Display</button><br/><br/>
<p>Eye Colour:</p>
<select id="carType">
<option value="ferrari" id="ferrari">Ferrari</option>
<option value="lamborghini" id="lamborghini">Lamborghini</option>
<option value="porsche" id="porsche">Porsche</option>
<option value="bugatti" id="bugatti">Bugatti</option>
<option value="pagani" id="pagani">Pagani</option>
</select>
<table border="1" id="table">
<tr>
<th>Name</th>
<th>Age</th>
<th>Birthday</th>
<th>CarType</th>
<th>Delete Entry
<button id="Delete" onclick="remove_update(event)">delete</button> //this button right here but in each row and not here. should remove said row
</th>
</tr>
</table>
</body>
</html>
我试图做的是在 cel 5(删除条目)中为输入到表中的每一行添加一个删除按钮,该按钮将删除该行但不知道如何去做。如果可能的话,理想情况下希望在不使用 JQuery 的情况下这样做,因为我还没有触及它。
解决方案
您可以使用该rowIndex
属性来删除该行。
function addRow() {
// get input values
var name = document.getElementById('name').value;
var currentAge = document.getElementById('currentAge').value;
var Birthday = document.getElementById('Birthday').value;
var carType = document.getElementById('carType').value;
var table = document.getElementsByTagName('table')[0];
const index = table.rows.length;
var newRow = table.insertRow(index);
newRow.setAttribute('data-index', index);
var cel1 = newRow.insertCell(0);
var cel2 = newRow.insertCell(1);
var cel3 = newRow.insertCell(2);
var cel4 = newRow.insertCell(3);
var cel5 = newRow.insertCell(4);
cel1.textContent = name;
cel2.textContent = currentAge;
cel3.textContent = Birthday;
cel4.textContent = carType;
cel5.innerHTML = '<button onclick="removeRow(this)" type="button" class="delete-button">Delete</button>';
}
function myFunction() {
var x = document.getElementById("table").rows.length;
document.getElementById("demo").innerHTML = "Found " + x + "tr elements in the table.";
}
function removeRow(evt) {
const deleteIndex = evt.parentElement.parentElement.rowIndex;
document.getElementById("table").deleteRow(deleteIndex);
}
table,
th {
border: 1px solid black;
}
tbody td {
padding: 30px;
}
tbody tr:nth-child(odd) {
background-color: #F4BC01;
color: #ABC412;
}
<h2>Basic HTML table</h2> <button onclick="myFunction()">Press me for
elements amount</button>
<p id ="demo"></p>
Name: <input type="text" name="name" id="name" /><br/><br/>
Age: <input type="text" name="currentAge" id="currentAge" /><br/><br/>
Date of Birth <input type="date" name="Birthday" id="Birthday" /><br/>
<button onclick="addRow();">Display</button><br/><br/>
<p>Eye Colour:</p>
<select id="carType">
<option value="ferrari" id="ferrari">Ferrari</option>
<option value="lamborghini" id="lamborghini">Lamborghini</option>
<option value="porsche" id="porsche">Porsche</option>
<option value="bugatti" id="bugatti">Bugatti</option>
<option value="pagani" id="pagani">Pagani</option>
</select>
<table border="1" id="table">
<tr>
<th>Name</th>
<th>Age</th>
<th>Birthday</th>
<th>CarType</th>
<th>Delete</th>
</tr>
</table>
</body>
</html>
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