Why not removing "Invalid" & "Closed" two values of FP.Open Invoke Node

[Jack_Jim]

In LabVIEW Invoke Node FP.Open

we have a parameter "State" which can only be written.

This "State" parameter have six values: Invalid, Standard, Closed, Hidden, Minimized, Maximized

If we set the parameter as Invalid or Closed, we will get an error.

Why not removing these two values here?

[tst]

Because the state can also be read as a property and it's an enum - the enum has to have all the values.

[Jack_Jim]

Just maintain consistency with the enum output of the FP.State property node? 

[tst]

Why not? Consistency is important. It becomes even more important if you were to use both the property and the method together, because then the enum values would not match.

[Jack_Jim]

I agree consistency is important, however, if we use this method:

Invalid and Colsed, two enum values, would be useless. We can not set "State" parameter as these two values, which makes our customers confused.

[RavensFan]

Then that fact should be noted in the documentation of the property node that it is invalid to write those two states to the property.  I wouldn't change the enum.

[SteenSchmidt]

@RavensFan: It is noted in the documentation already.

/Steen

[Darin.K]

It would be kind of cool if those two values were disabled automatically in the created enum control/constant.

[Jack_Jim]

@Darin.K: Yes, I really agree with you.

[tst]

Another possibility for implementing something like this would be if LV had sparse enums - then this list could display only some of the values and the enums would probably still match.

[AristosQueue (NI)]

> It would be kind of cool if those two values were disabled automatically in the created enum control/constant.

No, it wouldn't be cool. Because then someone would ctrl+drag their enum constant somewhere else and complain that it was disabled. Or, if we made them reenable on copy, ctrl+drag it to another FP.Open and complain that it *wasn't* still disabled. And so on.

It would not be cool. It would just be weird and annoying.