RuleFor(customer => customer.Forename).NotEmpty().When(customer => customer.Surname.Equals("FOO"));
The above rule only checks if Surname = FOO, how can I write a rule where Surname in ('FOO','BAR', 'ABC','BCD'), Forename cannot be null
The above rule only checks if Surname = FOO, how can I write a rule where Surname in ('FOO','BAR', 'ABC','BCD'), Forename cannot be null