How can I use AutoMapper in ASP.NET for complex mappings?

How can I use AutoMapper in ASP.NET for complex mappings?

You can use AutoMapper to simplify complex mappings by configuring profiles and using custom value resolvers. Would you like an example?

Yes, please provide an example of a complex mapping.

Sure! For instance, if you have a source object with nested properties, you can create a mapping profile like this:

CreateMap<Source, Destination>()
    .ForMember(dest => dest.FullName, opt => opt.MapFrom(src => src.FirstName + " " + src.LastName));

This maps the FirstName and LastName from the source to a single FullName in the destination.

What if I need to map collections?

You can map collections by simply creating a mapping for the collection type. For example:

CreateMap<SourceCollection, DestinationCollection>();

AutoMapper will handle the mapping of each item in the collection automatically.