Complex Questions in Expressions

You may use the typical question value, for example "text", in an expression as:

visibileIf: "{textQuestion} = 'Yes'"

For questions like Multiple Text, Matrix, Matrix Dropdown, Matrix Dynamic and Panel Dynamic you can't use the same approach.

Multiple Text, Matrix questions values are objects:

"name": { "firstName": "John", "lastName": "Snow"}

As result you may use it in expression as:

visibleIf: "{name.firstName} = 'John' and {name.lastName = 'Snow'}"

Matrix dropdown question is an object of objects:

"rateTeaches": { "math": { "knowSubject": 5, "explainsClearly": 4}, "literature": { "knowSubject": 4, "explainsClearly": 4} }

You may use it in expression as:

visibleIf: "{rateTeaches.math.explainsClearly} > 3}"

Matrix and Panel Dynamic questions are array of objects:

"rateTeaches": [{"subject": "math", "knowSubject": 5, "explainsClearly": 4}, {"subject": "literature",  "knowSubject": 4, "explainsClearly": 4} ]

The expression can be as:

visibleIf: "{rateTeaches[0].explainsClearly} > 3}"