BinaryWebTimer .NET can be used to update, in real-time, any ASP.NET page that relies on changing data. The control will automatically "post back" an ASP.NET WebForm (.aspx page) at user-specified time intervals.
BinaryWebTimer raises a "TimerElapsed" event back at the server after the post-back occurs, to which you can associate your custom timer elapsed code.
The control is very easy to use - Just drag -and-drop BinaryWebTimer .NET from your Visual Studio .NET toolbox onto your webform (.aspx) and simply set its TimerInterval property - and that's it! Your web page will now automatically update itself with any underlying changing data.
The control renders code for all major web browsers including Netscape, Opera and Internet Explorer.

Other features:-

1. 
   100% C# .NET code
2. 
   BinaryWebTimer .NET- Comprehensive MSDN style documentation available

BinaryWebTimer .NET is the Shareware version. The full version can be purchased by clicking on the "CLICK HERE TO ORDER" button below.