TO check if a member has NO roles, is this best

Dim userInfo As MembershipUser = Membership.GetUser(userId)
Dim userRoles() As String = Roles.GetRolesForUser(userInfo.UserName) if userRoles.Length = 0 then 'Member has NO roles end if

Is the best or only way to check if member has any roles at all, ak zero roles ?

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