How to display the Popup when data is updated into database using Asp.net

The best way to get it implemented by using the SignalR. It is completely free to download. We have used this for similar scenarios.
Here is the url:
http://signalr.net/[^]

It is having a wrapped Web Socket functionality to meet these kind of cases. Or you can directly go for Web Sockets:

http://msdn.microsoft.com/en-in/library/ie/hh673567(v=vs.85).aspx[^]

The above are the direct ways for it but still there are alternatives as below.

If you are using the 4.5 version, then you can try the following way.

. From code need to use the Async and Await which need to contact to the DB and wait for a response. If it has got a response that an update happened in DB then can show the popup
. It should be a recursive call. I mean it need to keep open the communiction alive with the async call. Once the wait time is over another one request should go to the db.
. The samething can be done using Thread or .Net's Background_Worker class
. The key thing is that we need to have the Thread or Background_Worker to run recursive.

Here you can see how to use Async: http://msdn.microsoft.com/en-us/library/vstudio/hh191443.aspx[^]

Hope this helps.

Thank You,
Siju Thomas.

Simplest solution.

-Implement your update logic and after the update ends put the below lines.

Response.Write("<script type='text/javascript'>");
Response.Write("alert('Database updated succesfully.');");
Response.Write("</script>");