val

RequiredFieldValidator

This is one of the important controls used in majority of web applications. If a user fails to enter the required information on the form then the message given on this validation control will appear thereby forcing the user to fill up the required information. The code given below will illustrate this concept in detail

Name:

Age:   



I have placed two textboxes and the required number of RequiredFieldValidator controls. The message given along with the ErrorMessage property will be displayed if the user doesn't enters any data on to the relevant text boxes (See the Figure given below)

Figure 1