This service displays a dialog wih the specified title (if any). The dialog contains the specified message (if any) and a list of values from which the user can select. The selection defaults to the first element of the list. The valuelist cannot be empty. When the user clicks OK, the service outputs the selected value to the answer port. If the user clicks Cancel then a service failure is generated.
- valuelist - The list of values from which the user makes a selection. The list cannot be empty. This is a mandatory parameter.
- title - The title used for the dialog. This is an optional parameter.
- message - The informative message used for the dialog. This is an optional parameter.
- answer - The value that the user selected from the valuelist.