How do I know if an AFValue.Value of type int is a SYSTEM digital state, or just a number?

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Rick_Davin_3.0 · Accepted Answer

Gregor has given a straight forward answer than anyone can use. However, since you tagged the post as "AF SDK", then a developer related answer would be:   First of all, if the AFValue.Value is a SYSTEM digital state, then it is NOT an integer period, i.e. if you were to attempt a typeof(Int32) check, it would return false for a SYSTEM state. Rather, you would attempt to cast to an AFEnumerationValue, and check to see if that object is null. If so, it is not a SYSTEM or any digital state. But if it is not null, then it is a digital state.   If the defined AFAttribute or PIPoint was declared to be some numeric type, then that digital state would be a SYSTEM state. If the AFAttribute or PIPont itself was defined as a digital object, then the digital state value is from the SYSTEM state set if IsGood is false. If IsGood is true, then the defined state set for the PIPoint is used.   But if all you are dealing with is numeric AFAttributes or PIPoints, be it Int32, Single, or Double, then IsGood is a very quick clue as to whether the AFValue.Value is a SYSTEM state or not.

How do I know if an AFValue.Value of type int is a SYSTEM digital state, or just a number?

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