DefinedValues w. method is null

[Exa644]

DefinedValues w. method is null

[Deadcows]

Interesting! Your example works as intended on my side 🤔 This test example does not involve any inheritance, right? I could imagine that method from the base class might not be found, but probably it's not the case.
I just added a safecheck to at least not spam the exceptions.
Apparently, there is some problem with finding the method, or with the acquisition of return values. Can you debug with breakpoint on line 100 and see if the GetMethods result is adequate, or is the result returned with invocation is null?

Also, in this particular case as an alternative you can write [DefinedValues("A", "B", "C")] public string StringSelection;, but I understand that it is just the test case and you need a more versatile solution

[Exa644]

The example does not involve any inheritance, no. (As in Public Class XX{})

The hand-crafted DefinedValues("A","B","C") does work - I was specifically looking to run it through a function however, in order to define different list-items depending on another variable

Does have this bit under the type, if that's helpful

	Name	Value	Type
	DeclaringMethod	System.InvalidOperationException: DeclaringMethod can only be used on generic arguments	System.Reflection.MethodBase

(Method is null, so we never get to the invoke)

[Exa644]

The example does not involve any inheritance, no. (As in Public Class XX{})

The hand-crafted DefinedValues("A","B","C") does work - I was specifically looking to run it through a function however, in order to define different list-items depending on another variable Does have this bit under the type, if that's helpful
Name Value Type
DeclaringMethod System.InvalidOperationException: DeclaringMethod can only be used on generic arguments System.Reflection.MethodBase

For context, the field I'm trying to apply this to exists inside a class called "ConsequencesStruct" (slightly misleading name, but)

This is used as a
public ConsequencesStruct[] ConsequencesToApply;
under another called AnswerStruct, which is used as a
AnswerStruct[] Answers;
under a class called DialogueState, inheriting from StateMachineBehaviour
Which is a component on an animationController

(As additional information, I'm using several
[ConditionalField(true, nameof(ConsequenceMathReqPredicate))]
in the ConsequencesStruct class already, which are working as intended)

[Deadcows]

Ohhhh I see! I never tested the usage of this attribute within nested serialized types apparently 🙂
It always looked up the method definition in the base serialized type, which is DialogueState in your case.
I fixed it for you. Thank you a lot for the report! Helpful one 🙂

The other inconvenience I noticed, is that method results are collected and cached on Inspector initialization. So, if you toggle some state that should affect returning values through the inspector, you'll have to deselect this node and select it again (thus reinitialize the inspector for DialogueState) to see the changes. If this will be a major inconvenience for you, please let me know, it should be relatively easy to fix.