Summary:
When you have a form that user's submit data, its important that they don't mess it up and enter weird stuff. Validation stops this but in ASP it was a tedious job of If statements to work out. I myself had a simple form that added users to a database, it had a heck of a lot of if statements. ASP.NET introduces - Validation Controls. These controls are just like Web Controls and can do many things like - Check if a field is filled out, Compare a field to something (or another), Use regular expressions on a field, Check to see if a field is within a certain range, you can even create your own! |
