ASK operator

The ASK operator creates an action that shows the user a message in a dialog form.

Syntax

ASK expression 
[[alias =] YESNO]
[DO actionOperator [ELSE elseOperator]]

Description

The ASK operator creates an action that asks the user for confirmation/asks the user a question.

Parameters

• expression

  An expression whose value is a message string. If the value is NULL, the question will not be asked, but the action will be executed.

• YESNO

  If specified, the user is asked a question (Yes/No)

• alias

  The name of the local parameter in which the user's response to the question will be written (Yes = TRUE, No = NULL). Simple ID.

• actionOperator

  A context-dependent action operator that is executed if the input was completed successfully. Both upper parameters and the user response parameter (if the question was Yes/No) can be used as parameters

• elseActionOperator

  A context-dependent action operator that is executed if the input was cancelled. Only upper parameters can be used as parameters.

Example

testAsk ()  {
    ASK 'Are you sure you want to continue?' DO {
        MESSAGE 'You continued';
    }

    ASK 'Use old values?' useOld = YESNO DO {
        IF useOld THEN
            MESSAGE 'Using old values';
        ELSE
            MESSAGE 'Using new values';
    }
}