Combining Enum Values with Bit-Flags

Question

I have this scenario where user has its role

NormalUser
Custodian
Finance

both Custodian and Finance is a Super

Answer 1

You can add the Flag-attribute to the Enum

[Flags]
public enum Role
{
    NormalUser,
    Custodian,
    Finance,
    SuperUser = Custodian | Finance,
    All = Custodian | Finance | NormalUser
}

Then you can check for a role with this expression:

 Role testRole = Role.Finance
 if(testRole & Role.SuperUser == Role.SuperUser){
      //testRole is SuperUser
 }