1)data.StateProfileNode?.rank in this code what is ? does. Could you please provide any reference to user manual. When to use and how to use "?" in code.
2)data.StateProfileNode?.rank this code is returning in Profile column 1 or 0. Could you please explain why 1 for Process1 or Process2 and 0 for all remaining states.
@Jörg Vogel is correct. The syntax
something?.label
Is used when you want to get the label's value if it exists, and null otherwise. It prevents an error from accessing a non-existant label. It isn't documented.
The reason the profile rank returns 1 or 0 is because the profile node doesn't exist for the default states. When you write down a null value as a number, it becomes a 0.
It is testing parameter wether the label node exists or not to prevent an exception.
It is now documented in treenode class as ? Operator for non-existing labels in treenode.labelProperties.
Sudheer,
the Multiprocessor uses the "native" state profile referred to with "0" and another custom state profile referred to with "1". If you are not familiar with custom state profiles, search in this forum for "custom state profiles".
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