I want to prompt further field based on its previous field result in Bot Framework App [duplicate]

问题

I have below formbuilder code in a class, I want to prompt user based on its response. if user response for field "ConfirmISTTimeZone" is "Yes" then it should prompt for the field "TimeZone" else it should directly prompt "Duration" How to do this?

var formflow = new FormBuilder<FlightBooking>().Message("Tell me Flight details!")
        .Field(nameof(Flightname))
        .Field(nameof(StartDate), validate: ValidateStartDate)
        .Field(nameof(ConfirmISTTimeZone), validate: ValidateResponseOfTimeZone)
        .Field(nameof(TimeZone), validate: ValidateTimeZone)
        .Field(nameof(Duration), validate: ValidateDuration)

回答1:

You can use the SetActivemethod for that on the FieldReflectorclass.

var formflow = new FormBuilder<FlightBooking>().Message("Tell me Flight details!")
        .Field(nameof(Flightname))
        .Field(nameof(StartDate), validate: ValidateStartDate)
        .Field(nameof(ConfirmISTTimeZone), validate: ValidateResponseOfTimeZone)
        .Field(new FieldReflector<FlightBooking>(nameof(TimeZone))
               .SetActive(CheckActiveMethod)
               .SetValidate(ValidateTimeZone))
        .Field(nameof(Duration), validate: ValidateDuration)

The CheckActiveMethod is just a method that takes the state and return either true, if the field is active and should be prompted, or false, if the field can be skipped.

回答2:

Another option is include 'active: ActiveTimeZone' in the Field of TimeZone

.Field(nameof(TimeZone), active: ActiveTimeZone, validate: ValidateTimeZone)

 private bool ActiveTimeZone(FlightBooking state)
    {
        bool setActive = true;
        if (!state.ConfirmISTTimeZone.Contains("Add ur condition here"))
            setActive = false;


        return setActive;

    }

来源：https://stackoverflow.com/questions/44126219/i-want-to-prompt-further-field-based-on-its-previous-field-result-in-bot-framewo

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bots

botframework

formbuilder