First up this is not a duplicate of AutoMapper mapping properties with private setters , because that deals with 'properties with private setters' not readonly setters. Although I would be happy to merge, if needed.
public class Example{
public string PrivateSetter { get; private set;}
public string ReadonlyProperty { get; }
}
Now that nullable reference types is a thing. I want to create dtos/models that follow that practice. however if I have a class with a property of say public string Name { get; set; } I get warnings that Name may be null. So I thought I would change the property to be a readonly property public string Name { get; } which I initialize in the constructor. Sweet! That made my null warning go away. But boom now at runtime my auto mapper dies. It cant find a parameterless constructor.
Now one way around this is to setup my mapper like this:
public class SourceClass
{
public string Name { get; }
}
public class DestinationClass
{
public DestinationClass(string name)
{
Name = name;
}
public string Name { get; }
}
Mapper.CreateMap<SourceClass, DestinationClass>()
.ConstructUsing(s => new DestinationClass(s.Name));
However that is pretty rubbish! As I now need to manually map every property, in the correct order, in the .ConstructUsing() method. Which kinda defeats the point of using Automapper.
So my question is How can I map to a class, with read only properties, using Automapper; without having to use .ConstructUsing()` and manually map every property into the constructor?
