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, ...
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