September 2012
Beginner
891 pages
26h 55m
English
Content preview from Beginning ASP.NET 4.5 in VB
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CHAPTER 9
Validation
This chapter presents some of the most useful controls that are included in ASP.NET: the validation controls. These controls take a potentially time-consuming and complicated task—verifying user input and reporting errors—and automate it. Each validation control, or validator, has its own built-in logic. Some check for missing data, others verify that numbers fall in a predefined range, and so on. In many cases, the validation controls allow you to verify user input without writing a line of code.
In this chapter, you’ll learn how to use the validation controls in an ASP.NET web page and how to get the most out of them with ...
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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.