Validating date c
Nothing is more annoying to a user who is on a dial-up connection than clicking the Submit button on the form and then waiting for 20 seconds to find out that they didn't enter their password correctly.
The other option for form validation is to put some client-side Java Script or VBScript at the top of the ASP page that checks if the information in the fields is correct.
These forms are made up of different types of HTML elements that are constructed using straight HTML, HTML server controls, or Web server controls.
A variety of HTML elements, such as text boxes, check boxes, radio buttons, drop-down lists and more, can be used in forms. NET applications are collecting information from a user, you want to ensure that the data that you collect is valid.
Data collection on the Internet is one of its most important features, so you must make sure that the data you collect has value and meaning.
You ensure this by eliminating any chance that the information collected does not abide by the rules you outline. NET don't know the difference between client-side and server-side validation.
(34 printed pages) Introduction Looking at Validation The Required Field Validator Control The Compare Validator Control The Range Validator Control The Regular Expression Validator Control The Custom Validator Control The Validation Summary Control Conclusion In your studies of ASP.When you used server-side validation with ASP 3.0, if something the user entered was wrong, you could repost the form and ask the user to correct the information in that particular field of the form.Sometimes, you carried the correct input from the other fields back to the form page, and populated the fields for the users so they didn't have to re-enter the same information again.From there, you can compare user input in different fields or against values that might be held in other repositories, such as a database.You can check for many types of information, as you learn in the rest of this article.