Mapping items from one class to another if Items are equivalent

Question

Say I have one class that looks like this:

public class Person
{
     public string Name {get; set;}
     public int Number {get; set;}
}
         


        

Answer 1

Install AutoMapper package in your project.

As a best practice (for web applications) you can create new class (should derives from Profile) in your App_Start folder, that will contain all your mappings for your project.

namespace MyApp.App_Start
{
    public class MyAppMapping : Profile
    {
        public MyAppMapping()
        {

            CreateMap();

            //You can also create a reverse mapping
            CreateMap();

            /*You can also map claculated value for your destination. 
            Example: you want to append "d-" before the value that will be
            mapped to Name property of the dog*/

            CreateMap()
            .ForMember(d => d.Days, 
             conf => conf.ResolveUsing(AppendDogName)); 
        }

        private static object AppendDogName(Person person)
        {
            return "d-" + person.Name;
        }
    }
}

Then Initialize your mapping inside the Application_Start method in Global.asax

protected void Application_Start()
{
    Mapper.Initialize(m => m.AddProfile());
}

You can now use the mappings that you have created

var dog = AutoMapper.Mapper.Map(person);