Null source create empty object for destination

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I am using automapper 7.0.1 with .Net core 2.1.

This class converts to

public class Item

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public Location Location { get; set; } = null;

}



public class ItemLocation 

{

    public long Id { get; set; }



    public string Address { get; set; }



    [NotMapped]

    public Translation Translations { get; set; }



    public bool IsPrivate { get; set; } = false;                 



    public IList<ItemLocationUserDefined> UserDefinedItemLoacation { get; set; }



    [NotMapped]

    public float Latitude { get; set; }



    [NotMapped]

    public float Longitude { get; set; }

}

Converts to :

public class ItemsToReturnDto

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public LocationDto Location { get; set; } = null;

}



public class ItemLocationToReturnDto

    {

        public long Id { get; set; }



        public string Address { get; set; }



        public Translation Translations { get; set; }



        public float Latitude { get; set; }



        public float Longitude { get; set; }



        public bool IsUserDefined { get; set; }



        public DateTimeOffset UpdatedAt { get; set; }



        public DateTimeOffset CreatedAt { get; set; }

        public bool Disabled { get; set; }

    }

I have initialized Automapper in startup.cs

var mappingConfig = new MapperConfiguration(mc =>

{

    mc.AllowNullDestinationValues = true;

    mc.AddProfile(new MappingProfile());

});



IMapper mapper = mappingConfig.CreateMapper();

services.AddSingleton(mapper);

Mapping profile :

CreateMap<ItemsToReturnDto, Item>()

                .ForMember(dest => (int)dest.Status, opts => opts.MapFrom(src => src.Status))

                .ReverseMap();

CreateMap<ItemLocationToReturnDto, ItemLocation>()

                .ForMember(dest => dest.IsPrivate, opts => opts.MapFrom(src => src.IsUserDefined))

                .ReverseMap();

But even if source Location object is null Automapper automatically initialize empty Location object.

How I can return null if source is null?

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

A repro would help. Make a gist that we can execute and see fail.
– Lucian Bargaoanu
Nov 22 at 12:25

I would have to create a whole project in order to share complete code.
– Epistemologist
Nov 22 at 12:45

No, you just have to do the work to isolate the issue. That might be difficult, but it would prove the problem is with AM, not with your own code.
– Lucian Bargaoanu
Nov 22 at 13:02

You need to add the classes Location, LocationDto and MappingProfile, without these there is not enough to look at this properly as no one can reproduce it
– matt_lethargic
Nov 22 at 13:45

@matt_lethargic sorry for late response but code added.
– Epistemologist
Nov 26 at 5:37

|
show 2 more comments

up vote
0
down vote

favorite

I am using automapper 7.0.1 with .Net core 2.1.

This class converts to

public class Item

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public Location Location { get; set; } = null;

}



public class ItemLocation 

{

    public long Id { get; set; }



    public string Address { get; set; }



    [NotMapped]

    public Translation Translations { get; set; }



    public bool IsPrivate { get; set; } = false;                 



    public IList<ItemLocationUserDefined> UserDefinedItemLoacation { get; set; }



    [NotMapped]

    public float Latitude { get; set; }



    [NotMapped]

    public float Longitude { get; set; }

}

Converts to :

public class ItemsToReturnDto

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public LocationDto Location { get; set; } = null;

}



public class ItemLocationToReturnDto

    {

        public long Id { get; set; }



        public string Address { get; set; }



        public Translation Translations { get; set; }



        public float Latitude { get; set; }



        public float Longitude { get; set; }



        public bool IsUserDefined { get; set; }



        public DateTimeOffset UpdatedAt { get; set; }



        public DateTimeOffset CreatedAt { get; set; }

        public bool Disabled { get; set; }

    }

I have initialized Automapper in startup.cs

var mappingConfig = new MapperConfiguration(mc =>

{

    mc.AllowNullDestinationValues = true;

    mc.AddProfile(new MappingProfile());

});



IMapper mapper = mappingConfig.CreateMapper();

services.AddSingleton(mapper);

Mapping profile :

CreateMap<ItemsToReturnDto, Item>()

                .ForMember(dest => (int)dest.Status, opts => opts.MapFrom(src => src.Status))

                .ReverseMap();

CreateMap<ItemLocationToReturnDto, ItemLocation>()

                .ForMember(dest => dest.IsPrivate, opts => opts.MapFrom(src => src.IsUserDefined))

                .ReverseMap();

But even if source Location object is null Automapper automatically initialize empty Location object.

How I can return null if source is null?

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

A repro would help. Make a gist that we can execute and see fail.
– Lucian Bargaoanu
Nov 22 at 12:25

I would have to create a whole project in order to share complete code.
– Epistemologist
Nov 22 at 12:45

No, you just have to do the work to isolate the issue. That might be difficult, but it would prove the problem is with AM, not with your own code.
– Lucian Bargaoanu
Nov 22 at 13:02

You need to add the classes Location, LocationDto and MappingProfile, without these there is not enough to look at this properly as no one can reproduce it
– matt_lethargic
Nov 22 at 13:45

@matt_lethargic sorry for late response but code added.
– Epistemologist
Nov 26 at 5:37

|
show 2 more comments

up vote
0
down vote

favorite

I am using automapper 7.0.1 with .Net core 2.1.

This class converts to

public class Item

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public Location Location { get; set; } = null;

}



public class ItemLocation 

{

    public long Id { get; set; }



    public string Address { get; set; }



    [NotMapped]

    public Translation Translations { get; set; }



    public bool IsPrivate { get; set; } = false;                 



    public IList<ItemLocationUserDefined> UserDefinedItemLoacation { get; set; }



    [NotMapped]

    public float Latitude { get; set; }



    [NotMapped]

    public float Longitude { get; set; }

}

Converts to :

public class ItemsToReturnDto

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public LocationDto Location { get; set; } = null;

}



public class ItemLocationToReturnDto

    {

        public long Id { get; set; }



        public string Address { get; set; }



        public Translation Translations { get; set; }



        public float Latitude { get; set; }



        public float Longitude { get; set; }



        public bool IsUserDefined { get; set; }



        public DateTimeOffset UpdatedAt { get; set; }



        public DateTimeOffset CreatedAt { get; set; }

        public bool Disabled { get; set; }

    }

I have initialized Automapper in startup.cs

var mappingConfig = new MapperConfiguration(mc =>

{

    mc.AllowNullDestinationValues = true;

    mc.AddProfile(new MappingProfile());

});



IMapper mapper = mappingConfig.CreateMapper();

services.AddSingleton(mapper);

Mapping profile :

CreateMap<ItemsToReturnDto, Item>()

                .ForMember(dest => (int)dest.Status, opts => opts.MapFrom(src => src.Status))

                .ReverseMap();

CreateMap<ItemLocationToReturnDto, ItemLocation>()

                .ForMember(dest => dest.IsPrivate, opts => opts.MapFrom(src => src.IsUserDefined))

                .ReverseMap();

But even if source Location object is null Automapper automatically initialize empty Location object.

How I can return null if source is null?

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

I am using automapper 7.0.1 with .Net core 2.1.

This class converts to

public class Item

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public Location Location { get; set; } = null;

}



public class ItemLocation 

{

    public long Id { get; set; }



    public string Address { get; set; }



    [NotMapped]

    public Translation Translations { get; set; }



    public bool IsPrivate { get; set; } = false;                 



    public IList<ItemLocationUserDefined> UserDefinedItemLoacation { get; set; }



    [NotMapped]

    public float Latitude { get; set; }



    [NotMapped]

    public float Longitude { get; set; }

}

Converts to :

public class ItemsToReturnDto

{

    public long Id { get; set; }

    public int? CurrencyId { get; set; }



    public LocationDto Location { get; set; } = null;

}



public class ItemLocationToReturnDto

    {

        public long Id { get; set; }



        public string Address { get; set; }



        public Translation Translations { get; set; }



        public float Latitude { get; set; }



        public float Longitude { get; set; }



        public bool IsUserDefined { get; set; }



        public DateTimeOffset UpdatedAt { get; set; }



        public DateTimeOffset CreatedAt { get; set; }

        public bool Disabled { get; set; }

    }

I have initialized Automapper in startup.cs

var mappingConfig = new MapperConfiguration(mc =>

{

    mc.AllowNullDestinationValues = true;

    mc.AddProfile(new MappingProfile());

});



IMapper mapper = mappingConfig.CreateMapper();

services.AddSingleton(mapper);

Mapping profile :

CreateMap<ItemsToReturnDto, Item>()

                .ForMember(dest => (int)dest.Status, opts => opts.MapFrom(src => src.Status))

                .ReverseMap();

CreateMap<ItemLocationToReturnDto, ItemLocation>()

                .ForMember(dest => dest.IsPrivate, opts => opts.MapFrom(src => src.IsUserDefined))

                .ReverseMap();

But even if source Location object is null Automapper automatically initialize empty Location object.

How I can return null if source is null?

c# .net-core automapper

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

edited Nov 26 at 5:36

asked Nov 22 at 10:36

Epistemologist

176317

asked Nov 22 at 10:36

Epistemologist

176317

asked Nov 22 at 10:36

Epistemologist

176317

A repro would help. Make a gist that we can execute and see fail.
– Lucian Bargaoanu
Nov 22 at 12:25

I would have to create a whole project in order to share complete code.
– Epistemologist
Nov 22 at 12:45

No, you just have to do the work to isolate the issue. That might be difficult, but it would prove the problem is with AM, not with your own code.
– Lucian Bargaoanu
Nov 22 at 13:02

You need to add the classes Location, LocationDto and MappingProfile, without these there is not enough to look at this properly as no one can reproduce it
– matt_lethargic
Nov 22 at 13:45

@matt_lethargic sorry for late response but code added.
– Epistemologist
Nov 26 at 5:37

|
show 2 more comments

A repro would help. Make a gist that we can execute and see fail.
– Lucian Bargaoanu
Nov 22 at 12:25

I would have to create a whole project in order to share complete code.
– Epistemologist
Nov 22 at 12:45

No, you just have to do the work to isolate the issue. That might be difficult, but it would prove the problem is with AM, not with your own code.
– Lucian Bargaoanu
Nov 22 at 13:02

You need to add the classes Location, LocationDto and MappingProfile, without these there is not enough to look at this properly as no one can reproduce it
– matt_lethargic
Nov 22 at 13:45

@matt_lethargic sorry for late response but code added.
– Epistemologist
Nov 26 at 5:37

A repro would help. Make a gist that we can execute and see fail.
– Lucian Bargaoanu
Nov 22 at 12:25

I would have to create a whole project in order to share complete code.
– Epistemologist
Nov 22 at 12:45

No, you just have to do the work to isolate the issue. That might be difficult, but it would prove the problem is with AM, not with your own code.
– Lucian Bargaoanu
Nov 22 at 13:02

You need to add the classes Location, LocationDto and MappingProfile, without these there is not enough to look at this properly as no one can reproduce it
– matt_lethargic
Nov 22 at 13:45

@matt_lethargic sorry for late response but code added.
– Epistemologist
Nov 26 at 5:37

|
show 2 more comments

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