Mapping into differnet types with Automapper - automapper

Question

There are two classes in my Model:
public class Operation
{
public string Name { get; set; }
public Calculation Details { get; set; }
}
public class Calculation
{
public long Value { get; set; }
public List<decimal> Points { get; set; }
}
Mapping into this DTO:
public class OperationDto
{
public string Name { get; set; }
public CalculationDto Details { get; set; }
}
public class CalculationDto
{
public long Value { get; set; }
}
public class CalculationDetailedDto: CalculationDto
{
public List<decimal> Points { get; set; }
}
And sometimes the Client can request detailed information about the calculation. For example, depending of the command-line options:
class Program
{
static void Main(string[] args)
{
Mapper.CreateMap<Operation, OperationDto>();
Mapper.CreateMap<Calculation, CalculationDto>();
Mapper.CreateMap<Calculation, CalculationDetailedDto>();
var operation = new Operation
{
Name = "Very complicated opertion.",
Details =
new Calculation
{
Value = 1002,
Points = new List<decimal> {1.2m, 2.4m, 3.7m}
}
};
var operationDto = Mapper.Map<OperationDto>(operation);
Debug.WriteLine("Operation name: '{0}' value: '{1}'", operationDto.Name, operationDto.Details.Value);
if (args.Length > 0)
{
Debug.WriteLine("Details:");
foreach (var point in ((CalculationDetailedDto) operationDto.Details).Points)
{
Debug.WriteLine("{0}", point);
}
}
}
How do i tell Automapper at runtime map the calculation into CalculationDetailedDto?

Answer 1

You need to create another OperationDto that uses the detailed calculationDto, and create a map from Operation to OperationDetailedDto:
public class OperationDetailedDto
{
public string Name { get; set; }
public CalculationDetailedDto Details { get; set; }
}
Mapper.CreateMap<Operation, OperationDetailedDto>();
if (detailed) operationDto = Mapper.Map<Operation, OperationDto>(operation);
else operationDto = Mapper.Map<Operation, OperationDetailedDto(operation);

Answer 2

For those who do not fit solution proposed #fiskeboss can use the following.
You can re-map Calculation to CalculationDetailedDto after checking the command line arguments.
if (args.Length > 0)
{
operationDto.Details = Mapper.Map<CalculationDetailedDto>(operation.Details);
Debug.WriteLine("Details:");
foreach (var point in ((CalculationDetailedDto) operationDto.Details).Points)
{
Debug.WriteLine("{0}", point);
}
}