ASP.NET Kick Start

Chapter 4. Validating Web Form Pages

IN THIS CHAPTER

• Overview of the Validation Controls

• Using Validation Controls

• Performing Data Type Checks

• Performing Custom Validation

If you want to collect information from the users of your application, you’ll most likely need to implement some type of form validation. For example, you’ll need a way to make certain form fields required and prevent users from entering the wrong type of information into them.

Fortunately, Visual Studio .NET makes it easy to validate form data. You can add a variety of Validation controls to your Web Form Page to prevent the wrong type of data from being submitted.

In this chapter, you’ll learn

• How to use the common properties shared by all Validation controls

• How to use the Validation ...