Automapper ignore property. To declare an attribute map, decorate your destination type with the AutoMapAttribute: [AutoMap(typeof(Order))] public class OrderDto { // destination members. ID); // Grabs the users registration data and formats it to a <time> tag. Aug 8, 2017 · Mapper. Here, we create the UpdateStudentIgnoreNullValues () method. The main goal is to make EF objects serializable, without removing lazy loading. Unless I'm missing something, this should be fairly simple with straightforward mappings: Mapper. CreateMap<Source, SourceDto>(); Mapper. Ignore()); EDIT: To do custom conditional logic during the mapping you will need to implement a custom resolver: public class NullCheckResolver : IValueResolver<TSrc, TDest, TProp>. AutoMapper ignore properties while mapping a list. AutoMapper. var config = new MapperConfiguration(cfg => cfg. Build (); Apr 14, 2022 · bool destinationHasNoValue = Object. Item, opt => opt. How to ignore mapping with condition. Can use lambda arguments instead of nameof. config. We will use the following Employee and EmployeeDTO classes: AutoMapper Ignore Property. 0. So here is my Map: CreateMap<A, A>(). 2323. 1. In the below, the result of the reverse map still has the Company object populated. CreateMap<SourceType, DestinationType>() . Also, is there a way to pass multiple properties to be ignored in the CreateMap? public static MapperConfiguration mapperConfiguration = new MapperConfiguration(cfg =>. If your dynamic object implements IDictionary<string,object> (e. _IsUserMatch = (currentuser. I want address to be loaded only if i explicitly tell them to with include (x => x. Friends, act => act. AutoMapperMappingException: Missing type map configuration or Oct 12, 2019 · C# Automapper Ignore Property When Null. If I use ignore with ForAllMembers (before or after AddMaps looks for fluent map configuration ( Profile classes) and attribute-based mappings. ForSourceMember(src => src. Don't need to call ignore other members. Apr 21, 2022 · So If I add another navigation property, I would need to modify AutoMapper config. Here, you can see. You could add a configuration mapping for Cabin entity and AutoMapper would look at these configurations before mapping Cabin entity. Map method, as shown in my answer, will copy all property values present in the source object into the destination object without affecting any other properties in the dest object. To modify this behavior, use the CreateMap overload to specify which member list to validate against: var configuration = new MapperConfiguration(cfg => cfg. They won't be taken into account. Refactor the helper class to accept D destination like this: public static D Map<S, D>(S uiSource, D dbTarget) where D : class, new() MapperConfiguration config = new MapperConfiguration(. Item3 is the default 0 value (because it was never set to any other value), and you ignore the mapping of this property, B. CreateMap<Src, Dest>() . CreateMap(Of incomingModel, outgoingModel)(). MyModel -> DtoAssembly. Id, option => option. Json. articles'. Ignoring nested property on AutoMapper. Inspiration always strikes when you ask for help! For those who need assistance with something similar, I was using the wrong Map method. Add a custom mapping expression, ignore, add a custom resolver, or modify the source/destination type. CreateMap<EditApplicationViewModel, Application>() . ***> wrote: Yes, this contradict the automapper main purpose. cfg. string field2. Ignore()); Mar 23, 2011 · Automapper ignoring ignore for properties. for the ItemName destination property, we are using ternary operator and setting the value. sweet! thanks. SpecialProperty, opt => opt. MyModel -> MyDto (Destination member list) ModelAssembly. NullReferenceException : typeMapDestination. Feb 6, 2019 · If A. ConfigureMap() . Jun 6, 2018 · AutoMapper issue - cannot get ignore property. The Mapper. MemberSince; // Grabs the users last activity and formats it to a <time> tag. ForMember(d => d. The closest I've to achieving this is by having the whole Category object ignored when queried. Condition ( (src, dest, srcMember) => srcMember != null). Parts, opt => opt. Sep 5, 2017 · @JosephKatzman: opt. But this approach doesn't work for child properties. Both classes have the same number, same name, and same types of properties. ID == existingCompany. This can be used in situations like the following where we are trying to map from an int to an unsigned int. However, I do such a thing here: var a = _mapper. Having an issue with version 6. Look for this in the next version of AutoMapper, which should drop in a couple of days. Although this contradict the main benefit of automapper, allows to make explicit mapping only: This is for Automapper 6: var mapperConfiguration = new MapperConfiguration(cfg =>. AutoMapper uses a convention-based matching algorithm to match up source to destination values. // Create a map, store a reference to it in a local variable. If you do want the Referrer property to be mapped in the mapping from OnlineOrder to OrderDto you should include an explicit mapping in the mapping like this: cfg. I would like to ignore certain properties when mapping deep (ie levels > 1) object models. Jul 15, 2022 · Since Automapper 11, the indexer property is no longer automatically ignored. Any help would be appreciated Jun 17, 2013 · Right, but I have have to explicitly create the list of properties to ignore for each of my entities. I've tried the following, but it doesn't seem to work: opts => opts. SetPropertyValue(changedPropertyName, newValue); Of course this code won't work if type conversions are Jan 21, 2014 · The fact that you have properties in your domain models which are not present in your view model is not a problem at all. Ignore()) It is not a way because it forces me to do that for every single property everywhere and also causes a lot of duplication. AssertConfigurationIsValid () to validate the configuration. Jan 24, 2021 · A logical way do this would be to set the collection property to null in the dto sent from the client. {. Mapper. It calls the MapToStudentEntity () method with the IgnoreNullMappingProfile. Claim, opt => opt. Jan 31, 2020 · I know I can ignore a property when creating the map like this CreateMap<ClaimExposure, ClaimExposure>(); . I know how I can configure the ignored properties at initialization time, but I have no idea how I could achieve such a dynamic runtime behavior. Ignoring properties during the mapping process is crucial in various scenarios. ExpandoObject) then the following should work. Dec 5, 2016 · In the AutoMapper 2. Oct 24, 2022 · Add a custom mapping expression, ignore, add a custom resolver, or modify the source/destination type For no matching constructor, add a no-arg ctor, add optional arguments, or map all of the constructor parameters ===== Dto -> Dbo (Source member list) Dto -> Dbo (Source member list) Unmapped properties: Password Jun 8, 2016 · Mapper. During development, I'd like the ability to either exclude a bunch of fields and get to them one by one or be able to specify to map only fields I want and increase that as each test succeeds. IgnoreUnmappedProperties() extension which looked like this. Aug 21, 2019 · 4,633 4 41 61. Item3 is equal to 0 (because Automapper didn't set it and thus B. Automapper Mapping Non-null properties. CreateMap<Source, Dest>() . CreateMap<Employee, EmployeeDto>(); // code line (***) EmployeeDto dto = Mapper. Map<Employee, EmployeeDto>(employee); May 8, 2015 · In some special cases I want to map only some properties and perform additional checks. ID == user. Foo) . public static class AutoMapperExtensions { public static IMappingExpression<TSource, TDestination> IgnoreUnmappedProperties<TSource, TDestination>(this IMappingExpression<TSource, TDestination> expression) { var typeMap = Mapper Mar 4, 2016 · AutoMapper ForMember Ignore not working. ConstructUsing () is the way to go. ReverseMap(); The code runs in to this error: Newtonsoft. The types for ID are different, so I always want to ignore. Ignore()); Other options is to add map for the list item type of each one and ignore only the list type missing properties and then you dont need to ignore the list in the parents mapping, for example : Nov 24, 2017 · As Darin Dimitrov suggested, you should not try and map lists or collections. Condition(. CreatedByUser, opt => opt. Referrer)); Overall this feature should make using AutoMapper with classes that leverage inheritance Oct 11, 2016 · Previously when I used Automapper v3. Ignore()); AutoMapper. If the source collection is not null: Do the collection mapping. CreateMap<OnlineOrder, OrderDto>() . Automapper Aug 1, 2015 · I use automapper Queryable Extension to map dto from entity. Look the code: Dec 8, 2014 · If you don't want to map certain properties on a class, you can use Ignore: Mapper. Automapper - Ignore property on base class. Auto mapper Custom resolver source members to Sep 24, 2020 · public int Id { get; set; } // other properties. Jan 20, 2016 · Ignore mapping one property with Automapper. MyDto (Destination member list) Unmapped properties: IgnoreDto` What is the correct way to ignore this kind of mapping? Mar 6, 2019 · However, rather than create two separate DTOS (one with the Friends property mapped and the other with it ignored), it would be nice to somehow specify this at the time of mapping. Referrer, m=>m. Project(). BUT depending on some circumstances, I might need to ignore Foo during mapping. To<PersonDto>(); The problem with above method is that it will make EF to always load the address entity. ForMember(o=>o. Oct 22, 2021 · You can use the Ignore() feature to strict members you will never map but these members are will be skipped in configuration validation. CreateMap<Engine, EngineDTO>() . May 14, 2016 · 1 Answer. 1) Nov 8, 2017 · I would expect, from the last Ignore () alone, that when mapping a B to an A, Automapper would not try to assign a value to A. Referrer)); Overall this feature should make using AutoMapper with classes that leverage inheritance By default, AutoMapper only recognizes public members. IgnoreIDs(); var mappedCompany = Mapper. ReverseMap(). Genre, o => o. Ignore () not working. You can configure AutoMapper to ignore specific properties by using the ForMember() method in your mapping profile and chaining it with the Ignore() method. Given our entities: By calling ReverseMap, AutoMapper creates a reverse mapping configuration that includes unflattening: Unflattening is only configured for ReverseMap. 16. What would be nice for me in my case would be to have a way to turn off "greedy" mapping and have AutoMapper compare the properties of the source and destination objects, and map only over the properties that exist in both. But setting the Id column to ignore in the map below is not working and the Id is being overwritten. DateDeleted, opt => opt. When I try to get from DTO to entity, seem like the ignored attribute is being copied to destiny Entity, wouldn´t it be left on copy when source (dto) has the ignore map? [AutoMap(typeof(User), ReverseMap = true)] public class UserDto {. What is the best way to give a C# auto-property an initial value? 2. ghost opened this issue on Jul 6, 2017 · 3 comments. Automapper "map a few and ignore the rest". In the following mapping the property baz will only be mapped if it is greater than or equal to 0 in the source object. However, when I map a RequestDTO, there's no reason for each asset to include the RequestId as the Id is already AutoMapper uses a fluent configuration API to define an object-object mapping strategy. The trunk version is now default case-insensitive, and supports multiple naming conventions (camelCase, lowercase_underscore, etc). Add a comment. Of course, if things don't match up, then using . Offset. Value May 13, 2016 · How can I tell AutoMapper to ignore these properties globally? This is what I tried but I still get errors related to these properties. – Oct 21, 2019 · Additional properties in source automatically ignored by mapper ,so you should ignore explicitly ignored properties of destination, so in your case you must do like below code: CreateMap<Source, Destination>. Ignore()) The thing that is important, and likely what messed up you is the Sub instead of the function for the second part. IsSourceValueNull) Jan 30, 2015 · Review the types and members below. 0, we have an extension method called IgnoreAllNonExisting, which just add a Ignore statement on the properties in the TSource that does not exists in the TDestionation. Feb 12, 2017 · This copies all the columns over correctly, but I still have to manually update the ignored properties. Item3 to B. var personDto = dbContext. Map<A>(b); And I get the following exception: System. ConfigurationProvider. Ignore()); EDIT: For a more robust AutoMapper configuration, I suggest that you use mapping profiles, instead of declaring the mapping directly in Global. Address). 7. Path 'category. Hot Network Questions Mar 23, 2018 · AutoMapper . asax. ForMember(dst => dst. Referrer)); Overall this feature should make using AutoMapper with classes that leverage inheritance Jul 4, 2023 · 0. public string Text { get; set; } public string Text { get; set; } . GetPropertyValue(changedPropertyName); target. map. Ignore()); Or I could use the IgnoreMapAttribute on the properties to be ignored, but considering that on the production code, I have plenty of them, is there a much Jan 31, 2024 · Inside the delegate method, we configure AutoMapper to ignore null values for all source members by calling opts. Property, t => t. FieldToIgnore, Sub(y) y. // show the edit button to logged in users. AutoMapper maps to destination members by default so, if there is no destination member, the member doesn't get mapped anyway (and should generate a compiler error). CreateMap<Source, Destination>(MemberList. SourceType. ForMember(destination => destination. But if you need to make explicit only mapping and let no single property to get mapped implicitly this will do the job. Ignore() method when configuring your AutoMapper to indicate that some property present in both the source and the target should be ignored. public IEnumerable<AssetDTO> Assets { get; set; } public int RequestId { get; set; } // other properties. Improve this answer. ReverseMap () . AutoMapper is geared towards model projection scenarios to flatten complex object models to DTOs and other simple objects, whose design is better suited for Note: The name of property " Name " of Employee class is not the same as that of property " FullName " of EmployeeDto class. Map for the first time, AutoMapper will create the type map configuration and compile the mapping plan. You can ignore this list : Mapper. public string All the source and destination properties are string. Oct 6, 2021 · AutoMapper - Ignore specific-named properties including child properties. Will throw exception if a property is not mapped. Feb 7, 2015 · 2) Configure Automapper to ignore the property: CreateMap<Source, Destination>() . The source object is a wrapper around a DataRow and each property gets a particular row value. Per this post, which shows what I am doing below, except they are ignoring a property, and I'm ignoring a complex object. I'm looking to write something like that : cfg. Jan 31, 2020 · I have a mapping where the source and destination property share a name, but have different types. I have a property that is Ignored with Ignore Attribute in a DTO with AutoMap Reverse. You can ignore all unmapped properties globally. CreateMap<IDictionary<string, object>, Foo Null substitution allows you to supply an alternate value for a destination member if the source value is null anywhere along the member chain. public class PersonViewModel. This means that instead of mapping from null, it will map from the value you supply. Initialize(cfg =>. Ignore not only ignore the mapping for the property, but also ignore the mapping of all inner properties. Here is an Example: Profile: Feb 22, 2018 · I am trying to ignore the last Item element on my path, when mapping from the viewmodel to the entity. Ignore()); Then you could use your list and select it to the other list. Map<Source, IDestination>(new Source(), new Destination()); // This does not work (when destination object is created by ConstructUsing) var obj1 = mapper We have several options in telling AutoMapper a custom value resolver to use, including: MapFrom<TValueResolver>. ID as expected whilst the other properties change). Ignore()); But after mapping property IsExpanded is ignored only for root object Sep 28, 2016 · However, this is probably not what you want, because it will ignore the entire property (getter and setter). May 12, 2016 · The key point is to check the source property's type and map only if these conditions are satisfied ( != null for a reference type, != default for a value type): Mapper. net6 and automapper 11. Sep 14, 2018 · public ICollection<ArticleViewModel> Articles { get; set; } } And this the Automapper: CreateMap<Article, ArticleViewModel>() . MemberToIgnore, y => y. Ignore() tells AutoMapper to not map a value to that destination member. Feb 15, 2017 · By creating 2 DTO classes, one EntityDTO1 with 7 properties, one EntityDTO2 with 9 properties, then AutoMapper Ignore() will not make sense any more. Source); cfg Dec 11, 2017 · As of 6. Item3 has the default int value); which is the exact same outcome as when Automapper does in fact copy over the default value 0 from A. If you want unflattening, you must configure Entity -> Dto then call ReverseMap to create an unflattening type map configuration from the Dto -> Entity. CreateMap<ChildSource, ChildSourceDto>() . Automapper ignore child property in a Oct 27, 2021 · 1. AutoMapper is geared towards model projection scenarios to flatten complex object models to DTOs and other simple objects, whose design is better suited for AutoMapper allows you to add conditions to properties that must be met before that property will be mapped. CreateMap<Metadata, MetadataInput>(). ConnectionStatus, opt => opt. AutoMapper simplifies the process of object-to-object mapping in C#, allowing developers to map objects with ease. x ignoring unmapped properties could be done by simply adding a . If the Name starts with A, then we are assigning the Name Jul 24, 2018 · 1 Answer. I want to Ignore the Id when mapping from FormViewModel --> Entity. Dec 23, 2015 · 1 Answer. If the source collection is empty this Feb 16, 2012 · AutoMapper Exclude Fields. ID, it ignores changedCompany. Unable to exclude a property from the AutoMapper. 1 They seem to have removed many of these Ignore, IgnoreAllUnmapped and ForAllOtherMembers in the latest automapper. There must be some easier way to do this as anonymous objects are mapped just fine even if the case is different. On the other hand you could use the . AddProfile(new MappingProfile()); Feb 3, 2012 · This is done so that we can. Map (x => x. MapFrom (typeof (CustomValueResolver)) MapFrom (aValueResolverInstance) In the below example, we’ll use the first option, telling AutoMapper the custom resolver type through generics: var configuration = new MapperConfiguration If you do want the Referrer property to be mapped in the mapping from OnlineOrder to OrderDto you should include an explicit mapping in the mapping like this: cfg. That's working fine. AutoMapper is geared towards model projection scenarios to flatten complex object models to DTOs and other simple objects, whose design is better suited for Feb 19, 2019 · Within a class which derives from Profile, I could add an Ignore for each member that I don't want to be mapped, like this: CreateMap<Type2, Type1>(). cs and copy and paste the following code. 1. I finally found that I could tell AutoMapper to ignore everything, and then explicitly add the ones that I did want. In other words, I think (haven't tried it) you should be ok with just defining this PersonMapper class and ignoring the fields you want to ignore from the POCO. CreateMap<MoviesDto, Movie>() . Ignore()); Alternately you could ignore the ChildSource property on GrandChildSourceDto to By default, AutoMapper uses the destination type to validate members. Let us understand how to use the AutoMapper Ignore Method with an example. I am trying to completely ignore the property, but I keep getting an exception: CreateMap<SourceClass, DestinationClass>(). If the row value is DBNull value, the property getter throws an exception. At the time of writing this answer, AutoMapper will do this automatically (with a simple CreateMap<> () call) for you if the properties match the constructor parameters. But I want to ignore property IsExanded. return 0; set. To instruct AutoMapper to recognize members with other visibilities, override the default filters ShouldMapField and/or ShouldMapProperty : Feb 25, 2023 · To achieve this we need to use AutoMapper Conditional Mapping in C#. It can map to private setters, but will skip internal/private methods and properties if the entire property is private/internal. I'm trying to map one object to another but the object is quite complex. Ignore()); Share. ForMember(dest => dest. _mapper. AssertConfigurationIsValid() in a unit test and if I have not mapped all properties of the destination model the assertion throws an exception Apr 26, 2022 · Benefits: Will automatically map all properties with same name. AutoMapper ForMember Ignore not working. If you AutoMapper uses a fluent configuration API to define an object-object mapping strategy. Nov 2, 2012 · Make AutoMapper's Map ignore some properties? 1. I have been using AutoMapper with great success. 2. This is equivalent to a CreateMap<Order, OrderDto> () configuration. So, create a class file named Employee. var map = CreateMap<Source,Target>(); // Ignore all members. I know there are a lot of questions (and answers) about this BUT none of these works for me when using . ForMember(x => x. ForAllMembers(opt => opt. So, create a class file with the name MapperConfig. Ignore())) Jun 28, 2016 · C# Automapper Ignore property when different type 1 Ignore mapping for all members with different types and same name, using newest version of Automapper(6. Jul 6, 2017 · How to ignore property with ReverseMap #2195. The Map method is overloaded so you can supply a destination as well as a source. Typically not mapping the properties would not result in any errors or exception but I am using AutoMapper's Mapper. 8. g. 28. Mar 4, 2011 · Here's how you do it :) Mapper. Ignore()) . CreateMap<EntityA, EntityA>(new IgnoreNavigationsProperties()); I'm not looking to identify each property one by one. cs and copy and paste the following code into it. It assumes that all destination members need to be mapped. AutoMapper uses a fluent configuration API to define an object-object mapping strategy. Map ignore all Null value properties from source object. public MapperProfile() CreateMap<Source, Target>(); During startup I'm calling mapper. Prop3, y => y. ForMember(Function(x) x. Do not clear it. 3. Let's also assume that I cannot "store" the condition in the source or destination object. The FormViewModel class does not specify a new Id property it just uses the Id from its base class, plus some other properties. Here is the current mapping configuration for my Product class. Because you can create a DTO class with a number of properties you want, and dont need to use AutoMapper Ignore(). 2, AutoMapper creates type maps on the fly (documented here): When you call Mapper. Nov 11, 2021 · Learn more AutoMapper Ignore Property in C#. GrandChildSources, opt => opt. CreateMap<Employee, Employee>(). If you are mapping source InternetContract to destination Dto, the Package property will be ignored even though it has a public getter. Without automapper the code looks like this (using fasterflect's PropertyExtensions): var newValue = source. Basically: If the source collection property is null: Do not touch the destination collection at all but leave it as-is. JsonSerializationException: Self referencing loop detected with type 'ArticleViewModel'. How can I achieve this code but for all members of the destination type instead of copy/pasting this code for each member? Nov 1, 2018 · 2 Answers. Map<UserModel> (item) will map the item on to a fresh, crisp UserModel when what I want is to map the ADModel on to the existing UserModel record. Mar 28, 2022 · Is there a correct way to configure AutoMapper so that it would ignore mapping of null values to a non-null property? Edit: In further testing, I found that // This works var obj1 = mapper. What you might find usefull to use is the Condition() feature so you can map the member when the condition is true like the example below: May 16, 2019 · When defining the individual property mappings (which you got away without because they get mapped automagically, by having the same name), you have to specify an ignore instruction, like so: Mapper. Map(changedCompany, existingCompany); This works for all ID properties at Company level (mappedCompany. Text, opts => opts. People. When I map an asset, it should show the RequestId. IsExpanded, opts => opts. context => (context. Closed. Package. To instruct AutoMapper to recognize members with other visibilities, override the default filters ShouldMapField and/or ShouldMapProperty : Feb 11, 2015 · 3 thought on “How to ignore all unmapped properties using Automapper in C# and VB. But wanted to know is how I can also map LoanApplicationStatus, BusinessBorrowers and LoanApplicationDebts. PropertyC , options => options. ForMember(s => s. Given that the only thing MappingProfile is doing in your example code is ignoring the Products property, this leads me to believe that MapperProfile Sep 2, 2009 · 2 Answers. Automapper Ignore Method The Ignore method explicitly ignores a particular property during the mapping process. IsClass && !context. And here's the code to map the Employee object to EmployeeDto: Mapper. Ignore()) but that's not what I'm looking for, I'm looking for a way I can do it when I map like this Jun 9, 2017 · You can ignore a specific property when you configure your mappings. Ignore()) 5 Answers. Ignore()); However when I try to do the same mapping but have Foo and Bar as properties on a parent class the May 13, 2017 · /// <summary> /// Extension method for the <see cref="IMappingExpression" /> that causes the mapping to not attempt to map null properties on the Source to the Destination including those properties that are non-nullable types on the Destination /// This method was created because there is no easy way to configure AutoMapper not to map null Mar 19, 2020 · public string LabelColor { get; set; } Basically all I want is my automapper to ignore the Created property coming from the Category class anytime a Product is queried via API. Ignore()); Feb 27, 2016 · Then I suppose you are doing something wrong and not the way I showed in my answer. AddProfile(new MyProfile()); // ignore all unmapped properties globally. ReadOnlyProperty, opt => opt. public float this[int key] get. The latter part is checking if the destination already have a non-default value or not. If you have a 1 -> 1 relationship between them all, just make a map like: Mapper. CreateMap<srcType, destType>. That's my mapping: CreateMap<Store, StoreViewModel>(). Equals(destMember, destDefaultValue); return destinationHasNoValue; The first part is calculating the default value for the given destination value, based on the type of the destination value. Item3. Map(object, this); } } As you can see I have a method that helps me to update current node and its descendants with given object. string field1. MapFrom(x=>x. To use it, in MappingProfile: new RecordMapBuilder<TSource, TDestination> (this) . Ignore()); The problem is that the entire Package element is being ignored, but I need to ignore just the Item property. older versions you can't do it. . Aoo cannot be null because it's used by ForPath. This article explores how to effectively ignore properties in AutoMapper, accompanied by detailed code examples for each use case. Oct 23, 2015 · The FormViewModelBase has a property Id (Int32) and the FormViewModel inherits from this. — You are receiving this because you commented. Ignore()); No other directives were required to ignore any other properties that didn't exist on either source or destination. NET” Jun 29, 2016 · On Sun, Oct 8, 2017 at 6:04 PM Dmitry Nechaev ***@***. this also only works in vs2010. var metadataList = new List<Metadata>(); May 4, 2018 · I had to explicitly ignore this property in the CreateMap. ForPath(s => s. AddMaps looks for fluent map configuration ( Profile classes) and attribute-based mappings. If i specify ignore () in automapper map Feb 6, 2015 · Automapper ignore properties while mapping. ForMember(source => source. _MemberSince = user. 01. Nov 1, 2013 · Yes, I believe the AutoMapper feature of Dapper Extensions looks for singular entity name + "Mapper" suffix to automap fields to ignore, fields with different names etc. Sorted by: 1. // for use with the timeago jQuery plugin. It means that if the property is not a primitive type, but another class By default, AutoMapper only recognizes public members. Doing a copy of the same entity type in an MVC app, but looking to ignore copying the primary key (doing an update to an existing entity). Foo, x => x. Automapper gives the property Ignore which tells the mapper to not take the value of a property from the source class. TechnicalStatus, opt => opt. pr tk ji xp gc su io ti pr hu