return string.IsNullOrEmpty(wb) ? AddressType.InternalAddress : AddressType.ExternalAddress;
  • The ternary operator is called user2455111

3 answers 3

Alternative form of the if statement:

 if (string.IsNullOrEmpty(wb)) { return AddressType.InternalAddress; } else { return AddressType.ExternalAddress; } 
     return string.IsNullOrEmpty(wb) ? AddressType.InternalAddress : AddressType.ExternalAddress;

    If the value of the wb variable is an empty string.Empty (or simply "" ) or null , then AddressType.InternalAddress will be returned, otherwise AddressType.ExternalAddress will be returned.

    MSDN Help:

    1. Operator?: (C # Reference)
    2. String.IsNullOrEmpty method
    3. String.Empty field
    • i.e ? this is if, but: is it else? - olmar102
    • @ olmar102, if the condition is met, the result will be the left side of the expression, otherwise the right side. Yes, something like if...else - Denis Bubnov

    If the string wb empty or not initialized, return InternalAddress otherwise return ExternalAddress .
    MSDN