AllowedValues

AllowedValues UDA is used to list all values that an argument can accept. This is very useful in the cases when an argument must have a value from a specific list, for example, when argument type is enum.

Signature

AllowedValues(string[] values...)

Parameters

values
Values that argument can have.

Usage example

enum Fruit {
    apple,
    @AllowedValues("no-apple","noapple")
    noapple
};

Last modified: 24 October 2025