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Since ASP is in such wide use, however, Microsoft ensured that ASP scripts execute without modification on a machine with the . We use Java Script to do the Client-Side Validation. There are the following two types of validation in ASP.NET, you might have been introduced to a number of different types of controls, whether HTML server controls or Web server controls.

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for general information on the validation Web controls and Dissecting Validation Controls in ASP.

If you set a validation control's , stating: "Control 'control ID' referenced by the Control To Validate property of 'validation Control ID' cannot be validated." There may be times, however, when you need to provide validation for a Check Box or Check Box List.

All you need to do is include a This tells the browser that the form should not be allowed to submit without the checkbox checked.

Some, but not all, browsers will recognise and enforce this: The advantage of the HTML5 form validation is that it happens before our Java Script is called, displays instructions and points the user to the relevant element.

Validation server controls are a series of controls that help you validate the data that the user enters into the other controls that are provided with ASP. They determine whether the form can be processed based upon the rules that you define in the validation server controls.

One of the most common elements of Web pages is a form in which the user can input data that is posted back to the server.

By Bill Evjen Reuters December 2003 Applies to: Microsoft® ASP. NET validation server controls that are at your disposal.

NET Summary: Learn how to use all the available ASP.

This paper introduces these new controls and discusses tips and tricks on working with them in practical scenarios.

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