Developing Microsoft® ASP.NET Server Controls and Components

Chapter 14. Validator Controls

• Validation Architecture—IValidator, BaseValidator, and CustomValidator

• The Validation Framework

• Validating Text Entry—The StringValidator Example

Almost all Web applications share a common functionality: allowing users to input data and then gathering and processing that data on the server. Web applications use form-based input fields such as text boxes, check boxes, and buttons as the primary mechanism to allow users to enter data. Data entry and data validation go hand in hand. It is essential to validate all user input before it is processed and stored on the server. Validation of user input typically has been a tedious aspect of Web application development. ASP.NET simplifies validation in Web applications immensely ...