Answer:
A set of server controls included with ASP.NET that test user input in HTML and Web server controls for programmer-defined requirements. Validation controls perform input checking in server code. If the user is working with a browser that supports DHTML, the validation controls can also perform validation using client script.
| Previous Question | Next Question |
| What are user controls and custom controls? | What is the difference between Response.Write() and Response.Output.Write()? |