基于jquery的表头固定的若干方法

日期：2020-06-12 栏目：程序人生 浏览：次

A:使用JQuery UI插件，用DIV替换table，overflow-y:hidden达到滚动，让 thead绝对定位达到固定的目的，方法如下：

复制代码 代码如下:


(function($){
$.chromatable = {
defaults: {
width: "900px",
height: "300px",
scrolling: "yes"
}
};
$.fn.chromatable = function(options){
var options = $.extend({}, $.chromatable.defaults, options);
return this.each(function(){
var $this = $(this);
var $uniqueID = $(this).attr("ID") + ("wrapper");
$(this).css('width', options.width).addClass("_scrolling");
$(this).wrap('<div><div></div></div>');
$(".scrolling_outer").css({'position':'relative'});
$("#"+$uniqueID).css(
{'border':'1px solid #CCCCCC',
'overflow-x':'hidden',
'overflow-y':'auto',
'padding-right':'17px'
});
$("#"+$uniqueID).css('height', options.height);
$("#"+$uniqueID).css('width', options.width);
$(this).before($(this).clone().attr("id", "").addClass("_thead").css(
{'width' : 'auto',
'display' : 'block',
'position':'absolute',
'border':'none',
'border-bottom':'1px solid #CCC',
'top':'1px'
}));
$('._thead').children('tbody').remove();
$(this).each(function( $this ){
if (options.width == "100%" || options.width == "auto") {
$("#"+$uniqueID).css({'padding-right':'0px'});
}
if (options.scrolling == "no") {
$("#"+$uniqueID).before('<a href="#">Expand table</a>');
$("#"+$uniqueID).css({'padding-right':'0px'});
$(".expander").each(
function(int){
$(this).attr("ID", int);
$( this ).bind ("click",function(){
$("#"+$uniqueID).css({'height':'auto'});
$("#"+$uniqueID+" ._thead").remove();
$(this).remove();
});
});
$("#"+$uniqueID).resizable({ handles: 's' }).css("overflow-y", "hidden");
}
});
$curr = $this.prev();
$("thead:eq(0)>tr th",this).each( function (i) {
$("thead:eq(0)>tr th:eq("+i+")", $curr).width( $(this).width());
});
if (options.width == "100%" || "auto"){
$(window).resize(function(){
resizer($this);
});
}
});
};
function resizer($this) {
$curr = $this.prev();
$("thead:eq(0)>tr th", $this).each( function (i) {
$("thead:eq(0)>tr th:eq("+i+")", $curr).width( $(this).width());
});
};
})(jQuery);


页面调用如下：

复制代码 代码如下:


...
<script type="text/javascript" src="https://www.jb51.net/jquery-ui-min.js"></script>
<script>
$(function(){
$("#yourTableID").chromatable({
width: "900px",
height: "400px",
scrolling: "yes"
});
});
</script>
...
<table cellspacing="0" cellpadding="0">
<thead>
<tr>
<th>Check out this header</th>
<th>Look here's another one</th>
<th>Wow, look at me!</th>
</tr>
</thead>
<tbody>
<tr>
<td>Some content goes in here</td>
<td>Praesent vitae ligula nec orci pretium vestibulum</td>
<td>Maecenas tempus dictum libero</td>
</tr>
...
<tr>
<td>Quisque in wisi quis orci tincidunt fermentum</td>
<td>Mauris aliquet mattis metus</td>
<td>Etiam eu ante non leo egestas nonummy</td>
</tr>
</tbody>
</table>


此方法IE和FF的兼容性都很好，推荐。
B：利用css滤镜实现，但FF不支持微软的东西，不兼容。DOM如下：

复制代码 代码如下:


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<style type="text/css">
<!--
body,table, td, a {font:9pt;}
/*重点：固定行头样式*/
.scrollRowThead{position: relative; left: expression(this.parentElement.parentElement.parentElement.parentElement.scrollLeft);
z-index:0;}
/*重点：固定表头样式*/
.scrollColThead {position: relative;top: expression(this.parentElement.parentElement.parentElement.scrollTop);z-index:2; height:20px;}
/*行列交叉的地方*/
.scrollCR { z-index:3;}
/*div外框*/
.scrollDiv {height:200px;clear: both; border: 1px solid #EEEEEE;OVERFLOW: scroll;width: 500px; }
/*行头居中*/
.scrollColThead td,.scrollColThead th
{ text-align: center ;}
/*行头列头背景*/
.scrollRowThead,.scrollColThead td,.scrollColThead th
{background-color:EEEEEE; height:20px;}
/*表格的线*/
.scrolltable{
border-bottom:1px solid #CCCCCC; border-right:1px solid #CCCCCC; }
/*单元格的线等*/
.scrolltable td,.scrollTable th{
border-left: 1px solid #CCCCCC; border-top: 1px solid #CCCCCC; padding: 5px; }
-->
</style>
<BODY>
<!--<div>-->
<table cellpadding="3" cellspacing="0">
<tr >
<th > </th>
<th colspan="2">列头</th>
<th colspan="2">列头</th>
<th colspan="2">列头</th>
</tr>
<tr >
<th >h1</th>
<th>h2</th>
<th>h3</th>
<th>h4</th>
<th>h5</th>
<th>h6</th>
<th>h7</th>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
a</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
b</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td nowrap >
<input type="checkbox" value="checkbox">
c</td>
<td nowrap>单元格2</td>
<td nowrap>单元格3</td>
<td nowrap>单元格4</td>
<td nowrap>单元格5</td>
<td nowrap>单元格6</td>
<td nowrap>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
d</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
e</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
f</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
<tr>
<td >
<input type="checkbox" value="checkbox">
g</td>
<td>单元格2</td>
<td>单元格3</td>
<td>单元格4</td>
<td>单元格5</td>
<td>单元格6</td>
<td>单元格7</td>
</tr>
</table>
</BODY>
</HTML>


C:最简单的方法当然是写2个table，用DIV的overflow-y:auto来实现，兼容性绝对没问题，麻烦之处在于2个table的对齐问题，另外用脚本赋予高度的话，需要加onresize()方法。DOM如下：

复制代码 代码如下:

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