InfoPath's Three Validation Tools

Validation of form data is a basic need, whatever the form tool used. If the server-side processes are presented with unexpected data structures from a form, errors or other undesired effects (such as dropped or incorrect data) sometimes result. As the processing of data becomes increasingly detached from human appraisal, any errors or omissions need to be picked up automatically. Therefore, any forms-based application needs to ensure that submitted data conforms to a structure defined in a reliable way.

In traditional HTML/XHTML forms, validation of form data is typically done on both the client side and the server side. On the client side, custom JavaScript code is a typical tool. On the server side, a variety ...

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