Mapping derived classes not working

Hi,

I have the following classes:

public class TestClass
 {
     public List<BaseClass> MyProperty  { get; set; } 
}
public class BaseClass {}
public class ClassA: BaseClass {} 
public class ClassB: BaseClass {}

If I run the following code:

var testClass = new TestClass(); 
testClass.MyProperty.Add(new ClassA()); testClass.MyProperty.Add(new ClassB());  
var mappedClass = testClass.Adapt<TestClass,TestClass>();

the new mappedClass instance has only two items of type BaseClass in “MyProperty” instead of new instances of ClassA and ClassB. How do I configure Mapster to don’t map ClassA and ClassB to BaseClass ?

[chaowlert]

Yeah sorry, above code is wrong, plus I forgot that the property is list. Try this

TypeAdapterConfig<TestClass, TestClass>.NewConfig()
    .Map(dest => dest.MyProperty, src => src.MyProperty.Select(item => item.Adapt(item.GetType(), item.GetType()).ToList())

Basically, for Adapt method you can pass source type and destination type, and logic for mapping will be created once at runtime.

[Sascha-L]

Thank you so much! 😃