CODEWITHSUNDEEP
c#.netautomapper
Talbi Nesrine
Talbi Nesrine

Reputation: 11

Mapping with a condition

I want to map 2 objects based on a condition, if true mapp else ignore, the condition is not a part of source neither destination

  var mapperconfig = new MapperConfiguration(cfg =>
        {
            cfg.CreateMap<Source, Destination>()
               .ForMember(source => source.Titulaires, 
                          opt => opt.Condition(titulaires.HasValue && titulaires == true));
            ....   
        });

the extension method Condition() accepts just a type related to source or destination.

Upvotes: 1

Views: 1456

Answers (2)

Talbi Nesrine
Talbi Nesrine

Reputation: 11

thank you all for your help, I find a way to test my conditions into my automapper configuration : MapperConfiguration mappConf = new MapperConfiguration(config => { config.CreateMap() .ForMember(destination => destination.member, option => option.Condition(item => _condition == true))........});

Upvotes: 0

Sujay
Sujay

Reputation: 606

AutoMapper allows you to add conditions to properties that must be met before that property will be mapped.

Eg.

   public class Foo
{
  public int baz;
}

public class Bar 
{ 
  public uint baz; 
}

public class Program
{
    public static void Main()       
    {
        Mapper.CreateMap<Foo,Bar>().ForMember(dest => dest.baz, opt => opt.Condition(src => (src.baz >= 0)));

        var foo1 = new Foo { baz=-1 };      
        var bar1 = Mapper.Map<Bar>(foo1);

        Console.WriteLine("bar1.baz={0}", bar1.baz);

        var foo2 = new Foo{ baz=100 };
        var bar2 = Mapper.Map<Bar>(foo2);


        Console.WriteLine("bar2.baz={0}", bar2.baz);
    }
}

Also, they give Preconditions functionality

See this link Conditional Mapping

Upvotes: 1

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