javascript 如何使用javascript冻结表头
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how to freeze table header using javascript
提问by RJ501
I have table with 200 rows. The first row has headings(th tag). While i am scrolling down the heading is to be fixed and visible to all rows. Any help?
我有 200 行的表。第一行有标题（th 标签）。当我向下滚动时，标题是固定的并且对所有行可见。有什么帮助吗？
Thank You
谢谢
采纳答案by SpYk3HH
Easiest answer, check this out -> http://www.imaputz.com/cssStuff/bigFourVersion.html
最简单的答案，看看这个 -> http://www.imaputz.com/cssStuff/bigFourVersion.html
One caveat: Does not work for IE 7-9 (Does work for 6 and 10). If you need a solution for 7-9, try jQuery Scrollable Table Plugin. You can even set it up to only use the JS for IE versions 7-9 by placing the javascript call for it inside IE if comments. Then you'd know anyone using a better browser would be using pure CSS (faster) and you'd have a solution for those using crap ... i mean IE 7,8, or 9.
一个警告：不适用于 IE 7-9（适用于 6 和 10）。如果您需要 7-9 的解决方案，请尝试jQuery Scrollable Table Plugin。您甚至可以将它设置为仅使用 IE 版本 7-9 的 JS，方法是将 javascript 调用放在IE if comments 中。然后你就会知道任何使用更好浏览器的人都会使用纯 CSS（更快），并且你会为那些使用废话的人提供解决方案......我的意思是 IE 7,8 或 9。
It basically has to do with the CSS. One key is setting table-body to display: block. Another issue is going to be in dealing with fixed widths. Just check it out. It's REALLY easy to copy that example.
它基本上与CSS有关。一个关键是将 table-body 设置为display: block. 另一个问题是处理固定宽度。看看吧。复制那个例子真的很容易。
Really not much more I can say! This example is PURE CSS, no JS!
真的不多说了！这个例子是纯 CSS，没有 JS！
jsFiddle
js小提琴
CSS
CSS
/* define height and width of scrollable area. Add 16px to width for scrollbar */
div.tableContainer {
clear: both;
border: 1px solid #963;
height: 285px;
overflow: auto;
width: 756px
}
/* Reset overflow value to hidden for all non-IE browsers. */
html>body div.tableContainer {
overflow: hidden;
width: 756px
}
/* define width of table. IE browsers only */
div.tableContainer table {
float: left;
width: 740px
}
/* define width of table. Add 16px to width for scrollbar. */
/* All other non-IE browsers. */
html>body div.tableContainer table {
width: 756px
}
/* set table header to a fixed position. WinIE 6.x only */
/* In WinIE 6.x, any element with a position property set to relative and is a child of */
/* an element that has an overflow property set, the relative value translates into fixed. */
/* Ex: parent element DIV with a class of tableContainer has an overflow property set to auto */
thead.fixedHeader tr {
position: relative
}
/* set THEAD element to have block level attributes. All other non-IE browsers */
/* this enables overflow to work on TBODY element. All other non-IE, non-Mozilla browsers */
html>body thead.fixedHeader tr {
display: block
}
/* make the TH elements pretty */
thead.fixedHeader th {
background: #C96;
border-left: 1px solid #EB8;
border-right: 1px solid #B74;
border-top: 1px solid #EB8;
font-weight: normal;
padding: 4px 3px;
text-align: left
}
/* make the A elements pretty. makes for nice clickable headers */
thead.fixedHeader a, thead.fixedHeader a:link, thead.fixedHeader a:visited {
color: #FFF;
display: block;
text-decoration: none;
width: 100%
}
/* make the A elements pretty. makes for nice clickable headers */
/* WARNING: swapping the background on hover may cause problems in WinIE 6.x */
thead.fixedHeader a:hover {
color: #FFF;
display: block;
text-decoration: underline;
width: 100%
}
/* define the table content to be scrollable */
/* set TBODY element to have block level attributes. All other non-IE browsers */
/* this enables overflow to work on TBODY element. All other non-IE, non-Mozilla browsers */
/* induced side effect is that child TDs no longer accept width: auto */
html>body tbody.scrollContent {
display: block;
height: 262px;
overflow: auto;
width: 100%
}
/* make TD elements pretty. Provide alternating classes for striping the table */
/* http://www.alistapart.com/articles/zebratables/ */
tbody.scrollContent td, tbody.scrollContent tr.normalRow td {
background: #FFF;
border-bottom: none;
border-left: none;
border-right: 1px solid #CCC;
border-top: 1px solid #DDD;
padding: 2px 3px 3px 4px
}
tbody.scrollContent tr.alternateRow td {
background: #EEE;
border-bottom: none;
border-left: none;
border-right: 1px solid #CCC;
border-top: 1px solid #DDD;
padding: 2px 3px 3px 4px
}
/* define width of TH elements: 1st, 2nd, and 3rd respectively. */
/* Add 16px to last TH for scrollbar padding. All other non-IE browsers. */
/* http://www.w3.org/TR/REC-CSS2/selector.html#adjacent-selectors */
html>body thead.fixedHeader th {
width: 200px
}
html>body thead.fixedHeader th + th {
width: 240px
}
html>body thead.fixedHeader th + th + th {
width: 316px
}
/* define width of TD elements: 1st, 2nd, and 3rd respectively. */
/* All other non-IE browsers. */
/* http://www.w3.org/TR/REC-CSS2/selector.html#adjacent-selectors */
html>body tbody.scrollContent td {
width: 200px
}
html>body tbody.scrollContent td + td {
width: 240px
}
html>body tbody.scrollContent td + td + td {
width: 300px
}
HTML
HTML
<div id="tableContainer" class="tableContainer">
<table border="0" cellpadding="0" cellspacing="0" width="100%" class="scrollTable">
<thead class="fixedHeader">
<tr>
<th><a href="#">Header 1</a></th>
<th><a href="#">Header 2</a></th>
<th><a href="#">Header 3</a></th>
</tr>
</thead>
<tbody class="scrollContent">
<tr>
<td>Cell Content 1</td>
<td>Cell Content 2</td>
<td>Cell Content 3</td>
</tr>
<tr>
<td>More Cell Content 1</td>
<td>More Cell Content 2</td>
<td>More Cell Content 3</td>
</tr>
<tr>
<td>Even More Cell Content 1</td>
<td>Even More Cell Content 2</td>
<td>Even More Cell Content 3</td>
</tr>
<tr>
<td>And Repeat 1</td>
<td>And Repeat 2</td>
<td>And Repeat 3</td>
</tr>
...
...
...
<tr>
<td>End of Cell Content 1</td>
<td>End of Cell Content 2</td>
<td>End of Cell Content 3</td>
</tr>
</tbody>
</table>
</div>
