This article mainly writes a table page and fixes the table header or column header to achieve the effect of freezing columns in Excel. It mainly uses the scrollTop and scrollLeft of js.
1. Instructions for using scrollTop and scrollLeft in js
scrollTop refers to the height of the part where the "content in the element" exceeds the "upper boundary of the element". For example: the height value of the outer element is 200px, and the height value of the inner element is 300px. Obviously, the "content in the outer element" is higher than the "outer element" itself. When the scroll bar is dragged downward, part of the content will be hidden outside the "upper boundary of the outer element", and scrollTop is equal to The height of this "invisible content".
scrollLeft is the same as above.
2. Page example
The page example code is as follows:
<!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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