November 2007
Beginner
954 pages
25h 7m
English
book
Beginning ASP.NET 3.5 in C# 2008: From Novice to Professional, Second Edition
by Matthew MacDonald
Content preview from Beginning ASP.NET 3.5 in C# 2008: From Novice to Professional, Second Edition
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10.1. Understanding Validation
As a seasoned developer, you probably realize users will make mistakes. What's particularly daunting is the range of possible mistakes that users can make. Here are some common examples:
Users might ignore an important field and leave it blank.
Users might try to type a short string of nonsense to circumvent a required field check, thereby creating endless headaches on your end. For example, you might get stuck with an invalid e-mail address that causes problems for your automatic e-mailing program.
Users might make an honest mistake, such as entering a typing error, entering a non-numeric character in a number field, or submitting the wrong type of information. They might even enter several pieces of information ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.