Denver Macromedia Technology Conference March 14th - 15th, 2002 Denver, Colorado

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Underscore Validation

• AKA Form-level validation

• Easiest to implement

<Input Type=“Hidden” Name=“field_required” value=“Error message”>

• Runs on the server based on this hidden parameter from the form page

• Trusts the browser that the form variable is passed

• Effectively client-side, although actual validation occurs on the server

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