Javascript validating empty fields

Most of WYSIWYG (What You See Is What You Get) editors generate some HTML tags for an empty string.

So, basically, you can't use not Empty validator to validate a text area which uses a WYSIWYG editor.

There's no need for the form to be submitted to the server before alerting the user that, for example, she has left one of the required fields empty.

In this lesson, you will learn how to: In previous lessons you already performed some validation tasks.

In future, if we decide we need to store the reason something was invalid, we can replace true/false here with a string containing an error message.

Now that we know how we want to display the errors AND know how to represent them, there’s something crucial missing.

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Microsoft® Office Front Page® 2003 allows you to create some custom validation within the form feature. By validating form responses before accepting them, we can alert users to their errors before they submit the form.In this way, client side form validation can vastly improve the user experience.This article assumes a general understanding of HTML and Java Script.(16 printed pages) Introduction Getting Started Writing the Validation Script Connecting the Form to the Script Associating Form Fields with Custom Script Code Listing Conclusion When you create forms, providing form validation is useful to ensure that your customers enter valid and complete data.

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