ASP.NET C# Sending Information Back to Client While Processing Web Page

Not sure if I'll explain this properly but here goes. I having written an asp.net app using C# for the code behind. After the user makes some selection and hits the "run" button I pass off the processing to a dll writ开发者_StackOverflowten in C# but what I want is a way to periodically send information back to the client so they can see what's going on like how many records have been processed and things like that. How can I accomplish this?

thanks

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Have a look at Provide feedback to the user on Long Running Tasks – using loader image - MS AJAX and JQuery

Also: How Do I: Use the ASP.NET AJAX UpdateProgress Control?

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There are many ways of accomplishing this kind of task. I am presenting a few ideas

Solution 1:

You can use Ajax Timer Control.

Solution 2:

Make a Windows Service that will read the information and will interact with the asp.net application to notify about the requested information. It will act as a background worker.

Hope this helps

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This may have been my wording of the question but I found what I was looking for. You can use the HttpResponse.Flush method to achieve what I was trying to do.

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This is often called HTTP Server Push or HTTP Streaming or Long Polling. Depending on how it's done.

You can also check out this SO question on HTTP Streaming...

Cross-browser implementation of "HTTP Streaming" (push) AJAX pattern

Or this one with an example of Long Polling

How do I implement basic "Long Polling"?

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