ASP.NET 4 Unleashed

Chapter 3. Using the Validation Controls

In This Chapter

• Overview of the Validation Controls

• Using the RequiredFieldValidator Control

• Using the RangeValidator Control

• Using the CompareValidator Control

• Using the RegularExpressionValidator Control

• Using the CustomValidator Control

• Using the ValidationSummary Control

• Creating Custom Validation Controls

• Summary

In this chapter, you learn how to validate form fields when a form is submitted to the web server. You can use the validation controls to prevent users from submitting the wrong type of data into a database table. For example, you can use validation controls to prevent a user from submitting the value “Apple” for a birth date field.

In the first part of this chapter, ...