The InfoString property returns a string value. It is used to set the validation error message in the Verify module. This error message appears both in the error dialog popup and in the Info box. Using this property is useful where custom validation rules have been set and you wish to display a corresponding message when an error is encountered.

On FieldValidate, InfoString must be set after Status is set to ValidationError, and FieldValidate must return evtOkAbort.