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row.offsetHeight of a table row different in FireFox?

Posted on 2007-03-28
2
572 Views
Last Modified: 2013-11-19
In the following code

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
<style>
tr
{
    background-color:red;
    font-size:10pt;
}
</style>
<script language="javascript">
function onLoad()
{
    var div=document.getElementById("divCont");
   
    /*****************************/
    var NumOfRows = 1;
    /*****************************/
   
    var s = new Array();
    s.push("<table border=1 cellspacing=0 cellpadding=0>");
    for(var i=0; i<NumOfRows; i++)
    {
      s.push("<tr id='row_" + i + "'>");
      s.push("  <td>Row " + i);
      s.push("  </td>");
      s.push("<tr>");
    }
    s.push("</table>");
    div.innerHTML = s.join("\n");
   
    var row = document.getElementById("row_0");
    NumOfRows = (div.offsetHeight / row.offsetHeight);
   
    var s = new Array();
    s.push("<table border=1>");
    for(var i=0; i<NumOfRows; i++)
    {
      s.push("<tr id='row_" + i + "'>");
      s.push("  <td>Row " + i);
      s.push("  </td>");
      s.push("<tr>");
    }
    s.push("</table>");
    div.innerHTML = s.join("\n");
}
</script>
</head>
<body onload="onLoad();">
<div id="divCont" style="position:absolute;left:10px;top:10px;width:400px;height:200px;border:solid 1px blue;">
</div>
</body>
</html>

I've create a table with the number of rows depending on the height of the "divCont".
In IE and Opera it works perfectly and the table keeps inside the div exactly, but in FireFox the rows overflow the div.

What can be happening and how can I fix it for FireFox?

Thanks
0
Comment
Question by:mak730
2 Comments
 
LVL 36

Expert Comment

by:Zyloch
ID: 18812811
First of all, when you grab the height of the row, I would recommend getting the entire height of the table, especially since you add borders to the table. Thus, set an ID on the table and use getElementById() on that instead of row_0.

To fix for Firefox, make sure to set cellpadding and cellspacing in your second table to zero as well.
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LVL 28

Accepted Solution

by:
Pravin Asar earned 500 total points
ID: 18815438
No points necessary.........



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<html>
<head>
<style>
tr
{
    background-color:red;
    font-size:10pt;
}
</style>
<script language="javascript">
function onLoad()
{
    var div=document.getElementById("divCont");
   
    /*****************************/
    var NumOfRows = 1;
    /*****************************/
   
    var s = new Array();
    s.push("<table border=1 cellspacing=0 cellpadding=0>");
    for(var i=0; i<NumOfRows; i++)
    {
      s.push("<tr id='row_" + i + "'>");
      s.push("  <td>Row " + i);
      s.push("  </td>");
      s.push("<tr>");
    }
    s.push("</table>");
    div.innerHTML = s.join("\n");
   
    var row = document.getElementById("row_0");
    NumOfRows = parseInt (parseInt(div.offsetHeight) / parseInt(row.offsetHeight));
   
    var s = new Array();

    ////////// TAKE CARE HERE...

    s.push("<table border=1 border=1 cellspacing=0 cellpadding=0>");
    for(var i=0; i<NumOfRows; i++)
    {
      s.push("<tr id='row_" + i + "'>");
      s.push("  <td>Row " + i);
      s.push("  </td>");
      s.push("<tr>");
    }
    s.push("</table>");
    div.innerHTML = s.join("\n");
}
</script>
</head>
<body onload="onLoad();">
<div id="divCont" style="position:absolute;left:10px;top:10px; width:auto; height:200px; border:solid 1px blue;">
</div>
</body>
</html>
0

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