LMD 2007 - Validator Controls

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The LMD Validator framework introduces a set of components which allow implementation of professional-level client-side validation in an elegant and simple way without writing much code (often without any code at all).

The two main tasks of client-side validation are:

• to check for validity a value entered by a user into some input control;
• to provide feedback about validation results (e.g. to indicate an error) in some way.

Consequently, there are three types of components involved into the most typical validation setup :

• input control being validated;
• validator component which encapsulates some validation logic;
• error provider component which implements some way of error indication.

Check LMD Validator Tutorial for an introduction into this interesting technique.