Validating a form

Imagine trying to authenticate a user nameed "Foo'or True Or'foo" — no "dangerous" characters, but there goes your login scheme.If all you're doing is reading and writing to the db, then properly parameterizing queries should take care of the problem.

The Java Script class presented here makes the form validations many times easier.

This article discusses how to validate information you get from users — that is, to make sure that users enter valid information in HTML forms in an ASP. What you'll learn: If you ask users to enter information in a page — for example, into a form — it's important to make sure that the values that they enter are valid.

For example, you don't want to process a form that's missing critical information.

This section introduces some examples demonstrating the ways to work with other frameworks and form builders.

Validating data in Microsoft Access allows you to check data whilst it is being entered by the database user and will enable you to not save the data if it breaks any validation rules or routines.

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