How to bind bootstrap frame
Apr 07, 2025 pm 01:36 PM
Bootstrap drop-down boxes can be bound using jQuery or pure JavaScript. Using jQuery, load the jQuery library and bind the dropdown box: $(function() { $('#dropdown').on('show.bs.dropdown', function() { // Binding event handler}); }); Using pure JavaScript, get the dropdown box element and bind the event listener: const dropdown = document.getElementById('dropdown'); dropdown
How to bind a drop-down box using Bootstrap
The drop-down box of Bootstrap is a component that allows the user to select one or more items from the list of options. To bind a drop-down box, you can use a JavaScript framework such as jQuery or pure JavaScript.
Using jQuery
1. Load the jQuery library
Make sure the jQuery library is loaded in the webpage.
2. Bind the drop-down box
<code class="javascript">$(function() { $('#dropdown').on('show.bs.dropdown', function() { // 綁定事件處理程序}); });</code>
Using Pure JavaScript
1. Get the drop-down box element
<code class="javascript">const dropdown = document.getElementById('dropdown');</code>
2. Bind event listener
<code class="javascript">dropdown.addEventListener('show.bs.dropdown', function(event) { // 綁定事件處理程序});</code>
Binding event handler
The event handler will be fired when the drop-down box is displayed. Here you can execute the logic you want, such as:
- Load data asynchronously and fill drop-down box options
- Verify the selected options
- Respond to user input
Example
<code class="javascript">$('#dropdown').on('show.bs.dropdown', function() { // 使用AJAX 加載數(shù)據(jù)$.ajax({ url: 'data.json', success: function(data) { // 填充下拉框選項(xiàng)$.each(data, function(index, value) { $('#dropdown').append($('<option>').val(value).text(value)); }); } }); });</option></code>
By following these steps, you can use Bootstrap to bind the drop-down box and customize its behavior as needed.
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