server pushed events and asp.net? (ie comet)

  • Thread starter Thread starter Mad Scientist Jr
  • Start date Start date
M

Mad Scientist Jr

are there any good examples of or tutorials on creating server pushed
events (in either framwork 1.1 or 2.0, vb or c#) ?
thanks
 
Hmm .. unfortunately there are none (AFAIK).

I had given a chalk talk at TechED'06 on how to do this however. This can be
done badly in 1.1 and elegantly in 2.0.

In 2.0 -
What you do basically is, invalidate a cached item based on SqlDependency,
and have an AJAX request poll for the cached item at a regular interval.

In 1.1 -
You replace that SqlDependency with a filebased dependency that you modify
by touching a file using an extended stored procedure.

Either approach is scalable and stateless at server end, so it should work
out just fine.

- Sahil Malik
http://www.winsmarts.com
http://blah.winsmarts.com
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

Server Side Notifications and a Javascript Application... 2
IIS & The page cannot be found 2
how to install .net framwork and ajax inside the webdeploymentproject ? 2
ASP.net built in ajax calls? 9
[ASP.NET - C# - Ajax] Sys.WebForms.PagerequestManagerServerErrorExceptionerror (12030, 12031 and 121 0
Microsoft Visual Studio 2005 and .Net Framework 1.1 3
Calling function using repeater (vb vs. c#) 1
not possible to run two different versions of ASP.NET 2

Back
Top