About This Software
ASHX handlers are specifically designed for file downloads and other non-page requests, offering superior performance compared to ASPX pages. They eliminate the overhead of page lifecycle events and viewstate processing, making them ideal for serving files efficiently. ASPX pages, while more versatile, carry additional baggage from the page lifecycle that can slow down file serving. For high-volume file downloads or large files, ASHX handlers provide better resource utilization and faster response times. However, ASPX pages may be preferable when you need to combine file downloads with other page functionality or require authentication mechanisms already implemented in your page structure.
Key Features
How to Use
To implement an ASHX handler, create a generic handler class that implements the ProcessRequest method and returns the file content with appropriate headers. For ASPX downloads, use the Response object with proper content type headers and binary write operations. Both methods require proper error handling and disposal of resources to prevent memory leaks.
Conclusion
For dedicated file download functionality, ASHX handlers are generally the superior choice due to their performance benefits and reduced overhead. Evaluate your specific requirements before making a decision.