JQuery複選框全選效果如何實現
阿新 • • 發佈：2020-05-10
Js相關技術
checked屬性
如何獲取所有複選框：document.getElementsByName、
需求分析
在我們對錶格處理的時,有些情況下,我們需要對錶格進行批量處理
技術分析
第一種方法：選擇器[屬性名稱='屬性值']
$("input[type='checkbox']:gt(0)").prop("checked",this.checked);
第二種方法：使用層級選擇器來實現 tbody > tr > td > input
$("tbody > tr > td > input").prop("checked",this.checked);
第三種方法：
// #tab > tbody > tr:nth-child(4) > td:nth-child(1) > input[type="checkbox"]
程式碼實現
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script type="text/javascript" src="../js/jquery-1.11.0.js" ></script>
<script>
/*
表格全選和全不選
進一步確定事件: 點選事件
*/
$(function(){
//繫結點選事件
//this 代表的是當前函式的所有者
$("#checkAll").click(function(){
//獲取當前選中狀態
// alert(this.checked);
//獲取所有分類項的checkbox
// 選擇器[屬性名稱='屬性值']
// $("input[type='checkbox']:gt(0)").prop("checked",this.checked);
//使用層級選擇器來實現 tbody > tr > td > input
// $("tbody > tr > td > input").prop("checked",this.checked); //這個可行
// #tab > tbody > tr:nth-child(4) > td:nth-child(1) > input[type="checkbox"]
$("input").prop("checked",this.checked);
});
});
</script>
</head>
<body>
<table border="1px" width="600px" id="tab">
<thead>
<tr >
<td>
<input type="checkbox" id="checkAll" />
</td>
<td>分類ID</td>
<td>分類名稱</td>
<td>分類商品</td>
<td>分類描述</td>
<td>操作</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<input type="checkbox" />
</td>
<td>1</td>
<td>手機數碼</td>
<td>華為,小米,尼康</td>
<td>黑馬數碼產品質量最好</td>
<td>
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >修改</a>|<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a>
</td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>2</td>
<td>成人用品</td>
<td>充氣的</td>
<td>這裡面的充氣電動矽膠的</td>
<td><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >修改</a>|<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a></td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>3</td>
<td>電腦辦公</td>
<td>聯想,小米</td>
<td>筆記本特賣</td>
<td><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >修改</a>|<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a></td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>4</td>
<td>饞嘴零食</td>
<td>辣條,麻花,黃瓜</td>
<td>年貨</td>
<td><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >修改</a>|<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a></td>
</tr>
<tr>
<td>
<input type="checkbox" />
</td>
<td>5</td>
<td>床上用品</td>
<td>床單,被套,四件套</td>
<td>都是套子</td>
<td><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >修改</a>|<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a></td>
</tr>
</tbody>
</table>
</body>
</html>以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。