Field validations
Text form fields can be configured to accept input in a specific style, format, or value range by using the validation options in the properties of the field.
A default Text field allows any combination of letters, numbers, or special characters: `~!@#$%^&*()_+-=[]\{}|;':",./<>?£
When using validation, you limit the type of content or range of content that the data in the field must align to. If the validation isn't passed, a red warning balloon describing the validation rule is displayed. The form cannot be signed until the field is validated.
In the drag-and-drop authoring environment, you set the validation for a field by double-clicking the field and choosing an option from the Validation list.
Available validations are: