Evaluate Test Case Properties - GoTo Step

What is the correct syntax for evaluating a custom test case property in a GoTo step?  I am able to do this easily with a data source step but cannot get this to work on a custom test case property.

Successful Condition XPath Expression (Data Source)

${dataSource#FieldName}=200

Unsuccessful Condition XPath Expression (Test Case Properties)

${#TestCase#PropertyName}=Y