void AddUnknownField(
IUnknownSDTField field
)| InvalidOperationException | Thrown when the container is already closed. |
| OperationErrorException | Thrown when an error occurs. In this case ReturnCode and SDKErrorInfo are accessible from OperationErrorException and contain more information. |
| FatalErrorException | Thrown when an unrecoverable error occurs. |
| ArgumentNullException | Thrown when message is null. |