set_value and validation rules passing

[eluser]ST-Mike[/eluser]
Hi

I'm using the Form Validation class and set_value to re-populate form data upon submission. However what I really want is for the form data to only populate when an error is caused from the form validation... if the form is submitted just fine then I don't want the form to populate again.

I was just wondering if this is possible out of the box with CI (i.e. without me creating my own helper function similar to set_value).

For clarification, in this case, the form is for sending a message.. you send the message, the same view reloads with a green message assuming it's been sent ok.. I don't want those form items populated again in this case, only if there has been an error brought up by the validation system.

Thanks