Validation
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Confirmation Fields
Confirmation fields require users to verify an email address, password, or other text information that has been typed into a form.
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Custom Server-Side Form Validation
WS Form allows you to perform your own server-side validation of submitted fields values.
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Deduplicating Form Submissions
If a duplicate value is submitted into a field you can configure it to show a validation error.
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Filter Disposable Email Addresses
Reject form submissions from unwanted email addresses using this WS Form filter.
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Limit a Number Field to Whole Numbers
HTML number fields enable a user to enter any floating point number. This tutorial explains how to limit this to whole numbers.
