Using DynamicMap() and ignore null source value

Question

I'm using Mapper.DynamicMap() inside a generic method and would like to, without using .CreateMap(), ignore some any source values that are null. Is this even possible?

Do you mean if you had a list of "source" objects and some were null, you don't want a list of mapped "destination" objects with some nulls -- you just want the non-null source objects mapped? — PatrickSteele
– PatrickSteele, Commented Sep 14, 2010 at 3:17
Exactly. For example: if I have a Source object with Name and SSN, and a Destination object with the same property, if any of those properties are null in the Source object i don't want them mapped in the Destination object. Why you may ask? I don't any properties that are already set in the Destination object to be overwritten by null values. — JoseMarmolejos
– JoseMarmolejos, Commented Sep 14, 2010 at 16:00
use this valueinjecter.codeplex.com if you like dynamic/convention based mapping — Omu
– Omu, Commented Sep 17, 2010 at 16:45

Prin · Accepted Answer · 2010-10-22 00:48:39Z

32

If you want all source properties with null values to be ignored you could use:

Mapper.CreateMap<SourceType, DestinationType>()
                    .ForAllMembers(opt => opt.Condition(srs => !srs.IsSourceValueNull));

Otherwise, you can do something similar for each member. This will get quit tedious if there are a large number of properties.

answered Oct 22, 2010 at 0:48

Prin

6116 silver badges11 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

JustMaier Over a year ago

Any way to do this with DynamicMap rather than CreateMap?

Shahzad Barkati · Accepted Answer · 2015-10-28 12:54:44Z

0

I solved it with DataMember property in destination type [DataMember(EmitDefaultValue = false)] add this in the destination DTO

edited Oct 28, 2015 at 12:54

Shahzad Barkati

2,5506 gold badges28 silver badges34 bronze badges

answered Oct 28, 2015 at 11:55

Srinath Subramani

291 silver badge2 bronze badges

Collectives™ on Stack Overflow

Using DynamicMap() and ignore null source value

2 Answers 2

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related