Use the control state

  1. Add a checklist control to a form or generate a form that contains a checklist.
  2. To ensure that the checklist must be validated, on the Extended Properties page of Checklist control, State field, select Mandatory.

    Note If you select Optional, TotalAgility does not validate the checklist at runtime.

  3. In the Error Message box, enter the message to display when not all items have been checked.
    Checklist Status 2
    Note If no error is specified, the default error message appears.
    Checklist Status 3