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For example, if the form ID is "loginForm", the field ID is "userName", and the validator is "required" then Tapestry will first look for a "loginForm-userName-required-message" key in the message catalog, and then for a "userName-required-message" key.

The validation message in the message catalog may contain printf-style format strings (such as %s) to indicate where the validate parameter's value will be inserted. For example, if the validate parameter in the template is minLength=3 and the validation message is "User name must be at least %s characters" then the corresponding error message would be "User name must be at least 5 characters".

Customizing Validation Messages for BeanEditForm

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