基于 colResizable-1.6 实现一个表头固定、列宽可调的 table
colResizable
- 官网:http://www.bacubacu.com/colresizable/
- GitHub:https://github.com/alvaro-prieto/colResizable
实现功能
- 能够实现各列完全对齐
- 能够兼容有无滚动条两种情况
- 只能在表头部分拖动改变列宽(不能在表体列边框上拖动)
实现代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
table {
border-collapse: collapse;
width: 100%;
/* 关键样式 */
table-layout: fixed;
}
.table-header tr th {
border: 1px solid red;
}
.table-body-wrapper {
border: 1px solid red;
height: 75px;
overflow-x: hidden;
overflow-y: auto;
}
.table-body tr td {
border-right: 1px solid red;
border-bottom: 1px solid red;
/* 关键样式:不设置padding:0会导致无法完全对齐 */
overflow: hidden;
padding-left: 0 !important;
padding-right: 0 !important;
}
</style>
</head>
<body>
<div class="table-header-wrapper">
<table class="table-header">
<tr>
<th> header </th>
<th> header header </th>
<th> header </th>
</tr>
</table>
</div>
<div class="table-body-wrapper">
<table class="table-body">
<tr>
<td> cell </td>
<td> cell </td>
<td> cell </td>
</tr>
<tr>
<td> cell </td>
<td> cell </td>
<td> cell </td>
</tr>
<tr>
<td> cell </td>
<td> cell </td>
<td> cell </td>
</tr>
<tr>
<td> cell </td>
<td> cell </td>
<td> cell </td>
</tr>
<tr>
<td> cell </td>
<td> cell </td>
<td> cell </td>
</tr>
</table>
</div>
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.min.js"></script>
<script src="colResizable-1.6.min.js"></script>
<script type="text/javascript">
$(function() {
$(".table-header").colResizable({
liveDrag: true,
onDrag: syncCol
});
//页面加载完成后,手动对齐一次
syncCol();
//window resize的时候,会出现列不完全对齐的情况,手动对齐
$(window).resize(function() {
syncCol();
});
});
function syncCol() {
$('.table-body tr:first-child td').each(function() {
$(this).width($('.table-header tr th:eq(' + $(this).index() + ')').css('width'));
});
}
</script>
</body>
</html>
细节调整
部分情况下,会出现上下列宽度不一致的情况,可再次微调:
function syncCol() {
$('.table-body tr:first-child td').each(function() {
var px = $('.table-header tr th:eq(' + $(this).index() + ')').css('width').replace('px','');
var pxN = (Number(px)-2)+'px';
$(this).css('width',pxN);
});
}
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