How to send data many times to web browser in response to one request?

Question

I have a form on my web page, it allows to submit many queries to my website, every query is on a separate line in TextArea. Because waiting for all queries to complete is too long I would like to update the web page after every query completes - send result of one query to a web browser, new result should be appended to old results that are already on the web page.

How to do this in ASP.NET MVC 2?

I will be grateful for helpful responses.

Update

Thank you for all your answers but I decided to use JavaScript in web browser to poll server for data, here is my question about it http://stackoverflow.com/questions/2908936/cant-disable-jquery-cache

Answer 1

Read about Comet

Some projects from codeplex:

• ncomet
• pokein

Answer 2

I would just flush using Response.Flush() each time when you complete part of the request.

Answer 3

Checkout HTTP Server Push or Long Polling.

or this SO question on HTTP Streaming...

http://stackoverflow.com/questions/1112413/cross-browser-implementation-of-http-streaming-push-ajax-pattern

Examples of Long Polling with generic code.

http://stackoverflow.com/questions/333664/simple-long-polling-example-code

http://stackoverflow.com/questions/tagged/long-polling