Display an error message in your survey when an answer is invalid, to ensure that the
information that users provide is accurate and in an expected format.
You must purchase a separate license before using survey
functionality in your application.
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In the header of Dev Studio, click .
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Click the name of a survey.
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Click a question so that it has focus.
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In the Validations section, click the
Gear icon.
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Define the validation conditions.
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In the Message field, enter text for an error message.
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In the Field list, select a question in your survey.
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In the Value field, enter a value that is the same format as
the expected answer to the question.
For example, you can enter a positive integer in this field when the answer
represents years of experience.
Tip: For more guidance which values you can evaluate in the condition,
click Select values.
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In the Comparator list, select an operation that compares
the answer to the value that you provide.
For example, you can verify that the user provides a phone number for each name on
the emergency contact question page.
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Click OK.
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Click Save survey.