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7.0

Fixed Table Header/Scrolling in Mozilla

Asked by mark-b in JavaScript

Tags: table, header, fixed

I've created a table with fixed headers that behaves exactly the way I want, but it only works correctly in IE.   This table has fixed headers, scrolling in both directions and synchronized resizing (headers and table data).  Here it is:

<html>
<head>

<style>
 table#headers {table-layout:fixed;background:#eea033;}
 table#data {table-layout:relative;background:#eea033;}
 td, th {vertical-align:top;background:#ffffff;}
</style>
<script language="javascript">
var rh;
var fr;
var ds;
var hs;

function getOnScroll(from) {
      return function () {
            from.scrollLeft = event.srcElement.scrollLeft;
      };
}

function addSyncScroll(from, to) {
      removeSyncScroll(from);
      from.syncScroll = getOnScroll(from);
      from.syncTo = to;
      to.attachEvent("onscroll", from.syncScroll);
}

function removeSyncScroll(from) {
      if (from.syncTo != null) {
            from.syncTo.detachEvent("onscroll", from.syncScroll);
      }

      from.syncTo = null;
      from.syncScroll = null;
}
 
function init() {
  rh = document.getElementById("rh");
  fr = document.getElementById("fr");
  ds = document.getElementById("ds");
  hs = document.getElementById("hs");
  hs.style.top = ds.offsetTop;
  hs.style.left = ds.offsetLeft;
  hs.style.setExpression("width","ds.offsetWidth-(ds.offsetWidth - ds.clientWidth)");
  hs.style.visibility='visible';

  for( i =0; i < rh.childNodes.length; i++ ) {
      rh.childNodes[i].style.setExpression("width","fr.childNodes[" + i + "].offsetWidth");
  }

  addSyncScroll( hs, ds );
}
</script>

</head>
<body onload='init();'>
<div style="width:90%;overflow:hidden;z-index=3;visibility:hidden;position:absolute;" id='hs'>
<table cellpadding="4" cellspacing="1" id="headers">
<tr id='rh'>
<th>col 1</th>
<th>col 2</th>
<th>col 3</th>
<th>col 4</th>
<th>col 5</th>
<th>col 6</th>
<th>col 7</th>
<th>col 8</th>
<th>col 9</th>
<th>col 10</th>
</tr>
</table>
</div>
<div style="width:90%;height:400px;overflow:auto;z-index=2; border:1px" id='ds'>
<table cellpadding="4" cellspacing="1" width="100%" id="data">
<tr id='fr'>
<th>col 1</th>
<th>col 2</th>
<th>col 3</th>
<th>col 4</th>
<th>col 5</th>
<th>col 6</th>
<th>col 7</th>
<th>col 8</th>
<th>col 9</th>
<th>col 10</th>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>thisisawidthtest-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
</table>
</div>
</body>
</html>

--------------------------------------------------------
The Mozilla version is 'almost' correct:  Here it is:

<html>
<head>

<style>
table#headers {table-layout:fixed;background:#eea033;}
table#data {table-layout:relative;background:#eea033;}
td, th {vertical-align:top;background:#ffffff;}
</style>
<script language="javascript">
var rh;
var fr;
var ds;
var hs;

function syncScroll(e) {
      hs.scrollLeft = ds.scrollLeft;
}

function syncResize(e) {
  hs.style.width = ds.offsetWidth-(ds.offsetWidth - ds.clientWidth);

  for( i =0; i < rh.childNodes.length; i++ ) {
      rh.childNodes[i].width = fr.childNodes[i].offsetWidth;
  }
}

function init() {
  rh = document.getElementById("rh");
  fr = document.getElementById("fr");
  ds = document.getElementById("ds");
  hs = document.getElementById("hs");

  hs.style.top = ds.offsetTop;
  hs.style.left = ds.offsetLeft;
  hs.style.visibility = 'visible';
  ds.onscroll=syncScroll;
  window.onresize=syncResize;
  syncResize();
}

</script>

</head>

<body onload='init();'>
<div style="width:90%;overflow:hidden;z-index=3;visibility:hidden;position:absolute;" id='hs'>
<table cellpadding="0" cellspacing="1" id="headers">
<tr id='rh'>
<th>col1</th>
<th>col2</th>
<th>col3</th>
<th>col4</th>
<th>col5</th>
<th>col6</th>
<th>col7</th>
<th>col8</th>
<th>col9</th>
<th>col10</th>
</tr>
</table>
</div>
<div style="width:90%;height:400px;overflow:auto;z-index=2;" id='ds'>
<table cellpadding="0" cellspacing="1" width="100%" id="data">
<tr id='fr'>
<th>col1</th>
<th>col2</th>
<th>col3</th>
<th>col4</th>
<th>col5</th>
<th>col6</th>
<th>col7</th>
<th>col8</th>
<th>col9</th>
<th>col10</th>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>thisisawidthtest-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
<tr>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
<td>this is a width test-- please tell me it works</td>
</tr>
</table>
</div>
</body>
</html>

There are actually two problems with the Mozilla version:
 1)  Resize of the headers does not happen until the mouse is released on the window.  I CAN live with this.
 2)  The widths of the table headers do not synchronize correctly when the width of the table is greater than the viewport (when the horizontal scrollbar needs to be used to scroll).  I CANNOT live with this.  

I would like the solution to this problem NOT to use XUL or IFrames (if possible, keep the table header a DIV so it does not have external dependencies).

Thank you, and good luck!
[+][-]09/22/03 07:34 AM, ID: 9406002Expert Comment

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[+][-]09/24/03 06:33 AM, ID: 9420491Accepted Solution

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Zone: JavaScript
Tags: table, header, fixed
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Solution Provided By: Nushi
Participating Experts: 2
Solution Grade: A
 
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