How to track progress of server side processing on the client side (using HttpModule)

This example demonstrates an alternative way of how to track server-side processing. In this example, a custom HttpModule is used instead of HttpHandler as demonstrated in the How to track progress of server side processing on the client side (using HttpHandler) example. The use of the HttpModule has multiple advantages, and here are some of them:

- The module will be called earlier than the handler;

- At this stage, a user can close the predefined request from the client.
In contrast to the previous example where a session object is used to store a progress value, a simple static class is defined. Note this class has a global scope and should be made thread-safe.

For more information about the difference between the use of HttpModule and HttpHandler, follow this article: HTTP Handlers and HTTP Modules Overview

This example extends the following one: How to display progress information about server-side callback processing

You can find more information on HttpModule basic concepts here: Walkthrough: Creating and Registering a Custom HTTP Module

See Also:
How to track progress of server side processing on the client side (using WebMethods)