Book Image

ASP.NET Site Performance Secrets

By : Mattijs Perdeck
Book Image

ASP.NET Site Performance Secrets

By: Mattijs Perdeck

Overview of this book

Do you think that only experts with a deep understanding of the inner workings of ASP.NET, SQL Server, and IIS can improve a website's performance? Think again – because this book tosses that notion out of the window. It will help you resolve every web developer's nightmare – a slow website – with angry managers looking over your shoulder, raging calls from advertisers and clients – the lot. You don't have the time or energy to gain a thorough and complete understanding of ASP.NET performance optimization – You just need your site to run faster! This book will show you how.This hands-on book shows how to dramatically improve the performance of your ASP.NET-based website straight away, without forcing you through a lot of theoretical learning. It teaches you practical, step-by-step techniques that you can use right away to make your site faster with just the right amount of theory you need to make sense of it all.Start reading today and you could have a faster website tomorrow.Unlike other performance-related books, here you'll first learn how to pinpoint the bottlenecks that hold back your site's performance, so you can initially focus your time and energy on those areas of your site where you can quickly make the biggest difference. It then shows you how to fix the bottlenecks you found with lots of working code samples and practical advice, and just the right amount of theoretical detail.The first chapter details techniques for diagnosing performance issues using Waterfall charts. Subsequent chapters then each focus on one individual aspect of your website, providing you with numerous real-life scenarios and performance-enhancing techniques for each of them. In the last chapter, you learn how to effectively load-test your environment in order to measure the change in performance of your site without having to update your production environment – whether it is a new release or simply a small change in the database.
Table of Contents (19 chapters)
ASP.NET Site Performance Secrets
Credits
About the Author
About the Reviewers
Preface

Chapter 11. Optimizing Forms

In a classic ASP.NET website, when you send user input to the server via a form, the existing page in the browser is replaced ("refreshed") by a new page sent by the browser. However, that new page is often almost the same as the existing page. This means, there is scope to cut down the number of bytes sent to the browser to only that content which is new. Also, when the existing page is replaced by the new page, the state of the controls on the existing page is lost, necessitating the introduction of ViewState. This is a problem, especially with GridView controls, which can generate a lot of ViewState overhead.

You can dramatically improve form responsiveness by:

  • Reducing the number of trips to the server

  • Speeding up those trips that are unavoidable by reducing the number of bytes going over the wire

This chapter takes you through three ways to do that:

  • Client-side validation: We'll look at two options: ASP.NET validation controls and a JavaScript library called...