Validating form c
In this case, we simply clear any error messages in the error provider.The Name textbox works very similarly but we don’t have quite as elaborate validation logic.
The error provider simply takes a control and a message in the Set Error method and does the rest of the work for you!
This API consists of a set of methods and properties available on each form element.
attribute to turn off the browser's automatic validation; this lets our script take control over validation.
Sending data is not enough — we also need to make sure that the data users fill out in forms is in the correct format that we need to process it successfully, and that it won't break our applications.
We also want to help our users to fill out our forms correctly and not get frustrated when trying to use our apps.