Setting values (original) (raw)
Computed value
You can use Map method to specify logic to compute value. For example, compute full name from first name and last name.
TypeAdapterConfig<Poco, Dto>.NewConfig() .Map(dest => dest.FullName, src => src.FirstName + " " + src.LastName);
Transform value
While Map method specify logic for single property, AddDestinationTransform allows transforms for all items of a type, such as trimming all strings. But really any operation can be performed on the destination value before assignment.
Trim string
TypeAdapterConfig<TSource, TDestination>.NewConfig() .AddDestinationTransform((string x) => x.Trim());
Null replacement
TypeAdapterConfig<TSource, TDestination>.NewConfig() .AddDestinationTransform((string x) => x ?? "");
Return empty collection if null
config.Default.AddDestinationTransform(DestinationTransform.EmptyCollectionIfNull);
Passing run-time value
In some cases, you might would like to pass runtime values (ie, current user). On configuration, we can receive run-time value by MapContext.Current.Parameters.
TypeAdapterConfig<Poco, Dto>.NewConfig() .Map(dest => dest.CreatedBy, src => MapContext.Current.Parameters["user"]);
To pass run-time value, we need to use BuildAdapter method, and call AddParameters method to add each parameter.
var dto = poco.BuildAdapter() .AddParameters("user", this.User.Identity.Name) .AdaptToType();