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Using setInterval() to populate tables in Internet Explorer

I am sure most of you have seen how Internet Explorer renders tables, and how annoying it is to wait for them. It renders tables all at once. By that I mean that if you have a 1000 row table, it will not show anything on screen until it has appended the 1000 rows to the table. A work colleague showed me this technique. If you use the setInterval() method to create a timer that populates the table, it will force each row of table to be rendered to screen. Firefox doesn't suffer from this problem, and it incrementally renders tables. <script> var currentRow = 0; var threadID = null; function populateTable() { var oTable = document.getElementById("simpleTable"); threadID = window.setInterval( function() { drawRow(oTable); } , 5 ); } function drawRow(oTable) { // Create a new TR element oTR = oTable.insertRow(); oTD = oTR.insertCell(); oTD.innerHTML = currentRow; oTD = oTR.insertCell(); oTD.innerHTML = "Last name " + currentRow; oTD = oTR.insertCell(); oTD.innerHTML = "First name " + currentRow oTD = oTR.insertCell(); oTD.innerHTML = "City " + currentRow; currentRow++; if (currentRow == 200) { window.clearInterval(threadID); currentRow = 0; } } </script> .... <a href="javascript:populateTable()">Populate the table</a> <br/><br/> <table id="simpleTable"> <caption>Simple Table</caption> <thead> <tr> <td>ID</td> <td>Last Name</td> <td>First Name</td> <td>City</td> </tr> </thead> </table>

By Anonymous Anonymous, at 11/28/2005 06:28:00 am  

There's a table-layout CSS attribute, that will make IE render the table as it's received. IE will read the header/first row and decide table widths based on that, and then render as data is received. No need for fancy scripting.

http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/properties/tablelayout.asp



By Blogger Darryl Lyons, at 11/28/2005 07:12:00 pm  

Ahh, thanks for the tip. In the context of our application, I'll still use the setInterval approach. I'm essentially reading from a recordset that is being continously updated from the server.

However, I will put the property on the table anyway and see if I get even better results.



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