• Matthew MacDonald


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.


Input Control Regular Expression Error Message Validation Group Event Handler 
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Copyright information

© Matthew MacDonald 2012

Authors and Affiliations

  • Matthew MacDonald
    • 1
  1. 1.OntarioCanada

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