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- Click the form element in the step pane which you want to prefill.
- Expand the properties for the form element by clicking the expand button.
- Under "Prefilling" select "2-Free Expression" from the drop-down list.
- Type the free expression in the text box. For complete information on the Interactive Forms internal script and the use of free expressions, see the section Scripting in forms.
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Interactive Forms provides a set of validations that can be used to evaluate the information entered in a form element in order to ensure that it complies with the format rules you set forth. If the data entered into the field or fields does not pass the validation, an error message is returned and the visitor does not proceed to the following step. This ensures that the information you receive in a form is always correct. By default, Interactive Forms provides 18 standard validations. It is also possible for a developer to extend the number of validations available. Some form elements have, by default, validations already assigned to them. These are described in the following sections.
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