该文章主要是写了一个table页面,并固定表头或者列头,以达到excel冻结列的效果,主要使用的js的scrollTop,scrollLeft.
一.js中scrollTop及scrollLeft的使用说明
scrollTop指的是“元素中的内容”超出“元素上边界”的那部分的高度。例如:外层元素的高度值是200px,内层元素的高度值是300px。很明显，“外层元素中的内容”高过了“外层元素”本身.当向下拖动滚动条时，有部分内容会隐没在“外层元素的上边界”之外，scrollTop就等于这部分“不可见的内容”的高度。
scrollLeft同上.
二.页面示例
页面示例代码如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>表头列头固定 -- Sara</title> <style> body{font-size:12px;} .t_n{width:30px; heihgt:240px!important; height:242px; background:buttonface; float:left; border-bottom:1px solid #000; border-left:1px solid #000} .t_n span{display:block; text-align:center; line-height:20px; border:1px solid #000; width:28px; height:20px} .t_number{border-right:1px solid #000; width:100%; margin-bottom:5px} .t_number td{border-bottom:1px solid #000; width:30px; height:25px; text-align:center} .dd{height:200px!important; height:208px; overflow-y:hidden;} .t_i{width:400px; height:auto; float:left; border-right:1px solid #000; border-top:1px solid #000} .t_i_h{width:100%; overflow-x:hidden; background:buttonface;} .ee{width:618px!important; width:620px} .t_i_h table{width:600px;} .t_i_h table td{border-right:1px solid #000; border-bottom:1px solid #000; height:20px; text-align:center} .cc{width:100%; height:220px; border-bottom:1px solid #000; border-right:1px solid #000; background:#fff; overflow:auto;} .cc table{width:600px; } .cc table td{height:25px; border-bottom:1px solid #000; border-right:1px solid #000; text-align:center} </style> <script> function aa(){ var a=document.getElementById("cc").scrollTop; var b=document.getElementById("cc").scrollLeft; document.getElementById("dd").scrollTop=a; document.getElementById("hh").scrollLeft=b; } </script> </head> <body> <div class="t_n"> <span>序号</span> <div class="dd" id="dd"> <table cellpadding="0" cellspacing="0" border="0" class="t_number"> <tbody> <tr> <td>1</td> </tr> <tr> <td>2</td> </tr> <tr> <td>3</td> </tr> <tr> <td>4</td> </tr> <tr> <td>5</td> </tr> <tr> <td>6</td> </tr> <tr> <td>7</td> </tr> <tr> <td>8</td> </tr> <tr> <td>9</td> </tr> <tr> <td>10</td> </tr> </tbody> </table> </div> </div> <!--table--> <div class="t_i"> <div class="t_i_h" id="hh"> <div class="ee"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td width="10%">标题A</td> <td width="20%">标题B</td> <td width="10%">标题C</td> <td width="20%">标题D</td> <td width="20%">标题E</td> <td width="20%">标题F</td> </tr> </table> </div> </div> <div class="cc" id="cc" onscroll="aa()"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td width="10%">1</td> <td width="20%">1</td> <td width="10%">1</td> <td width="20%">1</td> <td width="20%">1</td> <td width="20%">1</td> </tr> <tr> <td>2</td> <td>2</td> <td>2</td> <td>2</td> <td>2</td> <td>2</td> </tr> <tr> <td>3</td> <td>3</td> <td>3</td> <td>3</td> <td>3</td> <td>3</td> </tr> <tr> <td>4</td> <td>4</td> <td>4</td> <td>4</td> <td>4</td> <td>4</td> </tr> <tr> <td>5</td> <td>5</td> <td>5</td> <td>5</td> <td>5</td> <td>5</td> </tr> <tr> <td>6</td> <td>6</td> <td>6</td> <td>6</td> <td>6</td> <td>6</td> </tr> <tr> <td>7</td> <td>7</td> <td>7</td> <td>7</td> <td>7</td> <td>7</td> </tr> <tr> <td>8</td> <td>8</td> <td>8</td> <td>8</td> <td>8</td> <td>8</td> </tr> <tr> <td>9</td> <td>9</td> <td>9</td> <td>9</td> <td>9</td> <td>9</td> </tr> <tr> <td>10</td> <td>10</td> <td>10</td> <td>10</td> <td>10</td> <td>10</td> </tr> </table> </div> </div> </body> </html>
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