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<!DOCTYPE html>
<html itemscope itemtype="http://schema.org/Article">
<head lang="en">
<meta charset="UTF-8">
<title>ExpressMapper - .Net mapper</title>
<meta content="Expressmapper - lightweight, lighting fast and easy to use .Net mapper to map one type of object(s) to another in automated way. ExpressMapper relies completely on the expression trees. It is a great and faster alternative to Automapper and other .Net mappers." data-attr-name="content" http-equiv="description" name="description">
<meta content="Expressmapper, .Net mapper, Mapper, alternatives to Automapper, mapping one object to another" data-attr-name="content" http-equiv="keywords" name="keywords">
<meta itemprop="name" content="Expressmapper">
<meta itemprop="description" content="Expressmapper - lightweight, lighting fast and easy to use .Net mapper to map one type of object(s) to another in automated way. ExpressMapper relies completely on the expression trees. It is a great and faster alternative to Automapper and other .Net mappers.">
<meta itemprop="image" content="http://www.expressmapper.org/fb.png">
<link rel="shortcut icon" type="image/png" href="favicon.png" />
<link rel="stylesheet" href="styles/bundles/layout.min.css?v=e292de1c-5bba-4372-a782-15e589afe625">
<link href='http://fonts.googleapis.com/css?family=Roboto:100,300,400' rel='stylesheet' type='text/css'>
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<script type="application/javascript">
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-63048032-1', 'auto');
ga('require', 'linkid', 'linkid.js');
ga('send', 'pageview');
var _gaq = _gaq || [];
var pluginUrl =
'//www.google-analytics.com/plugins/ga/inpage_linkid.js';
_gaq.push(['_require', 'inpage_linkid', pluginUrl]);
_gaq.push(['_setAccount', 'UA-63048032-1']);
_gaq.push(['_trackPageview']);
</script>
</head>
<body>
<div id="fb-root"></div>
<div id="home">
<header class="header back-texture">
<hr class="border top-border standard-texture"/>
<div class="header-content">
<span class="active-menu"></span>
<div class="menu-item">
<div class="menu-block title-block">
<a href="/" class="title standard-texture">ExpressMapper</a>
</div>
</div>
<div class="menus">
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a href="#intro">Intro</a></div>
</div>
</div>
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a href="#tutorial">Tutorial</a></div>
</div>
</div>
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a href="#benchmarks">Benchmarks</a></div>
</div>
</div>
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a href="#plans">What's new?</a></div>
</div>
</div>
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a target="_blank" href="https://github.com/Expressmapper/ExpressMapper">Github</a></div>
</div>
</div>
<div class="menu-item standard-texture">
<div class="menu-block">
<div><a target="_blank" href="https://www.nuget.org/packages/Expressmapper">Nuget</a></div>
</div>
</div>
</div>
</div>
<hr class="border bottom-border standard-texture"/>
</header>
<div class="body">
<img src="fb320.png" class="logo" alt="logo" />
<article itemscope itemtype="http://schema.org/TechArticle" itemprop="articleBody">
<h1 itemprop="headline"><a name="intro">Intro</a></h1>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
ExpressMapper it is lightweight and easy to use .Net mapper to map one type of object(s) to another. ExpressMapper relies completely on the expression trees. Just imagine when you need to map domain model (data entity) to your DTO (viewmodel or data contract) in almost all cases it is a not exciting and boring routing to do. Just take a look at the example when it is done manually.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public ProductViewModel Map(Product p)
{
var pwm = new ProductViewModel();
pwm.Id = p.Id;
pwm.Name = p.Name;
pwm.Price = p.Price;
pwm.DiscountedPrice = product.DiscountedPrice;
pwm.Color = product.Color;
pwm.Weight = product.Weight;
pwm.Brand = product.Brand;
return pwm;
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// It should be done only once - good practice
// when host app starts e.g. ASP.NET on Application_Start.
public void MappingRegistration()
{
Mapper.Register<Product,ProductViewModel>();
}
public ProductViewModel GetProduct(Product p)
{
return p.MapTo<Product,ProductViewModel>();
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Here you can see when Expressmapper becomes very handy. Once the mappings are registered you can map objects in your code wherever you want either as many times as you want.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Why Expressmapper?
<ul>
<li>It’s lightweight meanwhile it possesses almost all bunch of features</li>
<li>It’s lightning fast, take a look at the <a class="text-link" href="#benchmarks">benchmarks</a></li>
<li>Open source</li>
<li>Almost 100% of test coverage</li>
<li>Easy to use</li>
</ul>
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// It should be done only once - good practice
// when host app starts e.g. ASP.NET on Application_Start.
public void MappingRegistration()
{
Mapper.Register<Product,ProductViewModel>();
}
IQueryable<Product> _products;
Product _product;
// Some good examples
public void Examples()
{
// collection mapping
var pwms = _products.MapTo<IQueryable<Product>,
IList<ProductViewModel>>();
// or just object mapping
_product.MapTo<Product,ProductViewModel>();
}
</code>
</pre>
</div>
</div>
</article>
<article itemscope itemtype="http://schema.org/TechArticle" itemprop="articleBody">
<h1 itemprop="headline"><a name="tutorial">Tutorial</a></h1>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Mapping domain model that matches completely DTO. It means that property names and their types are the same.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Registering mapping
public void RegisterMapping()
{
// Signature is the same for both type of objects
Mapper.Register<Product,ProductViewModel>();
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Registering mapping
public void RegisterMapping()
{
// Signature that have different
// property names but the same meaning
// Product.Gender is an integer
// whereas ProductViewModel.Gender is enum
Mapper.Register<Product,ProductViewModel>()
.Member(dest => dest.ProductName,
src => src.Name)
.Member(dest => dest.Gender,
src => (GenderTypes)src.Gender);
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Mapping domain model which is slightly different from DTO is accomplished by “Property” mapping.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Mapping domain model’s property that matches DTO by some complex rule or algorithm is accomplished by “Function” mapping.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>()
.Function(dest => dest.Gender,
src =>
{
if (src.Brand == "Beautiful Bottoms")
{
return GenderTypes.Women;
}
switch(src.GenderCode)
{
case 1:
return GenderTypes.Women;
case 2:
return GenderTypes.Men;
default:
return GenderTypes.Unisex;
}
});
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Registering mapping
public void RegisterMapping()
{
// Ignore default property mapping use "Ignore"
Mapper.Register<Product,ProductViewModel>()
.Ignore(dest => dest.Discount);
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
To ignore destination default property mapping is accomplished by “Ignore”.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
To implement minimum custom mapping like enumeration to string according business rules, etc.. use custom mapping function in order reuse it throughout different mappings' registrations.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper.RegisterCustom<ImageSizeTypes, string>(src =>
{
switch (src)
{
case ImageSizeTypes.ProductSmall:
return "Small";
case ImageSizeTypes.ProductMedium:
return "Medium";
}
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper
.RegisterCustom<Unit,UnitViewModel,CustomMapper>();
}
public class CustomMapper:
ICustomTypeMapper<Unit,UnitViewModel>
{
public UnitViewModel Map
(IMappingContext<Unit,UnitViewModel> context)
{
return new UnitViewModel{Id = context.Source.Id};
}
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
To implement custom complex mapping according business rules use custom mapping.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Mapping collection types like: IEnumerable<>, ICollection<>, IList<>, IQueryable<>, typed arrays - no additional steps are involved. Warning: IQueryable<> is implicitly cast to IEnumerable<> - if you need LINQ provide IQueryable support use .Project<Source, destination>();.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper.Register<Product, ProductViewModel>();
Mapper.Register<Category, Category>()
.Member(dest => dest.Products,
src = > src.BrandProducts);
}
// it works just as collection to collection mapping
products.Map<List<Product>,ProductViewModel[]>();
// it works with nested collection's properties too
categories.Map<Category[],List<CategoryViewModel>>();
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
// Register mapping DTO
// that has constructor with parameters
Mapper.Register<Product,ProductViewModel>()
.Instantiate(src => new ProductViewModel(src.Id));
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Having not default public constructor or some other logic to instantiate destination DTO - use “Instantiate”.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Need to do pre-mapping initialization or calculations - use “Before” function.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
// any initialization logic
// that needs to take place before mapping
Mapper.Register<Product,ProductViewModel>()
.Before((src,dest)=>
src.Discount = src.Price - src.DiscountedPrice);
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
// any business logic or custom mapping
// that needs to take place after actual mapping
Mapper.Register<Product,ProductViewModel>()
.After((src,dest)=>
dest.Discount = src.Price - src.DiscountedPrice);
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Need to do post-mappings or calculations - use “After” function.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Need to reset compiled mapping code’s cache? Use “Reset” function.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// In order to reset compiled mapping cache
// use "Reset" method
Mapper.Reset();
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
// Any registrations
Mapper.Register<Product,ProductViewModel>();
// In order to precompile all registered mappings
// no compilation during first time mapping
Mapper.Compile();
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
If there is a need (<span class="bold">strongly recommended</span>) to precompile all mappings - use “Compile”.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
There is no difference in performance iterating throughout a collection and use “MapTo” method for each item or just mapping collection.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>();
}
public void SomeMethod(Product[] products)
{
// here is one mapping
products.MapTo<Product[],List<ProductViewModel>>();
// here is another way to make the same mapping
// no performance implication
var result = new List<ProductViewModel>();
foreach(var p in products)
{ result.Add(p.MapTo<Product,ProductViewModel>); };
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>();
}
public void MappingMethod(List<Product> products
, ProductViewModel[] productVms)
{
// here is one mapping
Mapper.Map<List<Product>
,ProductViewModel[]>(products, productsVms);
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Need to map source to an existing destination without creating new instance(s) of destination. Use .Map<TSrc,TDest>(TSrc source, TDest dest).
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Mapping with destination ".Map<TSrc,TDest>(TSrc source, TDest dest)" applies to nested members either a class or a collection types.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public class Product
{
// Member declarations here
public ICollection<ProductVariant> Variants{get;set;}
}
public class ProductViewModel
{
// Member declarations here
public ICollection<ProductVariantViewModel>
Variants{get;set;}
}
// Register mappings
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>();
Mapper.Register<ProductVariant
,ProductVariantViewModel>();
}
public void MappingMethod(List<Product> products,
ProductViewModel[] productVms)
{
// here is one mapping
Mapper.Map<List<Product>,
ProductViewModel[]>(products, productsVms);
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>();
}
public void MappingMethod(object products, object productVms)
{
// here is mapping without existing destination
Mapper.Map(products, typeof(List<Product>)
,typeof(ProductViewModel[]));
// here is mapping with existing destination
Mapper.Map(products, productsVms,
typeof(List<Product>),
typeof(ProductViewModel[]));
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Don't have generic types but objects - you can map just object types with specifying the types. There is non-generics support for existing destination mappings presented too.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Need to map just a constant or value? - Use .Value member configuration.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Register mappings
public void RegisterMapping()
{
Mapper.Register<Size, SizeViewModel>()
.Value(src => src.SortOrder, 123)
.Value(src => src.BoolValue, true);
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper
.RegisterCustom<Unit,UnitViewModel
,CustomMapper>();
}
public class CustomMapper:
ICustomTypeMapper<Unit,UnitViewModel>
{
public UnitViewModel
Map(IMappingContext<Unit,UnitViewModel> ctx)
{
if (ctx.Destination == default(UnitViewModel))
{
ctx.Destination = new UnitViewModel();
}
ctx.Destination.Id = ctx.Source.Id;
return ctx.Destination;
}
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Implementation of custom complex mapping with destination.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
If there is a custom mapping defined it will be used as the first priority either as a primary mapping or nested one if source and destination match custom mapping types.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public class Product
{
// Member declarations here
public List<Unit> Units{get;set;}
}
public class ProductViewModel
{
// Member declarations here
public UnitViewModel[] Units{get;set;}
}
public void RegisterMapping()
{
Mapper
.RegisterCustom<List<Unit>,UnitViewModel[]
,CustomMapper>();
Mapper.Register<Product, ProductViewModel>();
}
public class CustomMapper:
ICustomTypeMapper<List<Unit>
,UnitViewModel[]>
// implementation goes below.....
public ProductViewModel MappingMethod(Product product)
{
// list<Unit> to UnitViewModel[]
// custom mapping will be used
return
Mapper.Map<Product,ProductViewModel>(product);
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
public void RegisterMapping()
{
Mapper.Register<Product,ProductViewModel>();
}
public class Product
{
// Members defined below.
public decimal Weight{get;set;}
public int? Height{get;set;}
}
public class ProductViewModel
{
// Members defined below.
public decimal? Weight{get;set;}
public int Height{get;set;}
}
public ProductViewModel Mapping(Product product)
{
var productVm = Mapper.Map<Product>(product);
return productVm;
}
</code>
</pre>
</div>
<div class="ex-cell">
<section itemprop="text">
Don't worry about mappings like int -> int? or vice versa - Expressmapper handles all conversions automatically.
</section>
</div>
</div>
<div class="spacing-row"></div>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section itemprop="text">
Don't worry about null checks for nested object type properties - they are handled automatically for you.
</section>
</div>
<div class="ex-cell">
<pre class="language-csharp">
<code class="language-csharp" itemscope itemtype="code">
// Mapping registration
public void RegisterMapping()
{
// Null check will be automatically handled in case of
// "src.DefaultVariant.Size.Code.Name"
Mapper.Register<Product,ProductViewModel>()
.Member(dest => dest.Name,
src => string.Format({0}-{1},
src.Name,
src.DefaultVariant.Size.Code.Name));
}
</code>
</pre>
</div>
</div>
<div class="spacing-row"></div>
</article>
<article class="chart-article" itemscope itemtype="http://schema.org/TechArticle" itemprop="articleBody">
<h1 itemprop="headline"><a name="benchmarks">Benchmarks</a></h1>
<div class="ex-row" itemprop="articleSection">
<div class="ex-cell">
<section name="XS" class="chart-text active" itemprop="text">
<h2>Extra Small size test (XS)</h2>
This test is all about 2 objects with primitive type properties and actually it is not about objects at all. This test all about "Struct" types. Why is it so extra small and simple? - because we are using structs and the same signature for source and destination. Please take a look at the diagram bellow:
<div class="diagram"><img src="images/SimpleStructUml.png" alt="Simple struct diagram that is used in test." itemprop="image" /></div>
Here you will find mapping registration for different mappers:
<h3>Expressmapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.Register<Item, ItemViewModel>();
</code>
</pre>
<h3>Automapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Item, ItemViewModel>();
</code>
</pre>
<h3>Mapster:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// Enum Mapping is not supported
</code>
</pre>
<h3>OoMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// Enum Mapping is not supported
</code>
</pre>
<h3>TinyMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// Enum Mapping is not supported
</code>
</pre>
<h3>ValueInjecter:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// No code is required for setup mapping...
</code>
</pre>
</section>
<section name="S" class="chart-text" itemprop="text">
<h2>Small size test (S)</h2>
This test is all about 2 objects only with primitive type properties. Why is it so small and simple? - because we are using the same signature for the source and the destination. Please take a look at the diagram bellow:
<div class="diagram"><img src="images/SimpleClassUml.png" alt="Simple class diagram" itemprop="image" /></div>
Here you will find mapping registration for different mappers:
<h3>Expressmapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.Register<News, NewsViewModel>();
</code>
</pre>
<h3>Automapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<News, NewsViewModel>();
</code>
</pre>
<h3>Mapster:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// No code is required for setup mapping...
</code>
</pre>
<h3>OoMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Item, ItemViewModel>();
</code>
</pre>
<h3>TinyMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
TinyMapper.Bind<Item, ItemViewModel>();
</code>
</pre>
<h3>ValueInjecter:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// No code is required for setup mapping...
</code>
</pre>
</section>
<section name="M" class="chart-text" itemprop="text">
<h2>Medium size test (S)</h2>
This test is all about 2 objects with ref type property. Please take a look at the diagram bellow:
<div class="diagram"><img src="images/AssociationUml.png" alt="Class with ref type property diagram" itemprop="image" /></div>
Here you will find mapping registration for different mappers:
<h3>Expressmapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.Register<Role, RoleViewModel>();
Mapper.Register<User, UserViewModel>()
.Member(dest => dest.BelongTo,
src => src.Role);
</code>
</pre>
<h3>Automapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Role, RoleViewModel>();
Mapper.CreateMap<User, UserViewModel>()
.ForMember(dest => dest.BelongTo,
src => src.MapFrom(m => m.Role));
</code>
</pre>
<h3>Mapster:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
TypeAdapterConfig<User, UserViewModel>
.NewConfig()
.Map(dest => dest.BelongTo,
src => TypeAdapter
.Adapt<Role,
RoleViewModel<(src.Role));
</code>
</pre>
<h3>OoMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Role, RoleViewModel>();
Mapper.CreateMap<User, UserViewModel>()
.ForMember(dest => dest.BelongTo,
src => src.MapFrom(m => m.Role));
</code>
</pre>
<h3>TinyMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// Mapping is not supported...
</code>
</pre>
<h3>ValueInjecter:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.AddMap<User, UserViewModel>
(src =>
{
var userViewModel = new UserViewModel();
userViewModel.InjectFrom(src);
userViewModel.BelongTo =
Mapper.Map<Role,
RoleViewModel>(src.Role);
return userViewModel;
});
</code>
</pre>
</section>
<section name="L" class="chart-text" itemprop="text">
<h2>Large size test (L)</h2>
This test is all about 2 objects with collection type property. Please take a look at the diagram bellow:
<div class="diagram"><img src="images/NestedCollectionUml.png" alt="Class with ref collection property type diagram" itemprop="image" /></div>
Here you will find mapping registration for different mappers:
<h3>Expressmapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.Register<Article, ArticleViewModel>();
Mapper.Register<Author, AuthorViewModel>()
.Function(dest => dest.OwnedArticles,
src => src.Articles);
</code>
</pre>
<h3>Automapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Article, ArticleViewModel>();
Mapper.CreateMap<Author, AuthorViewModel>()
.ForMember(dest => dest.OwnedArticles,
src => src.ResolveUsing(m => m.Articles));
</code>
</pre>
<h3>Mapster:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
TypeAdapterConfig<Author, AuthorViewModel>
.NewConfig()
.Map(dest => dest.OwnedArticles,
src =>
TypeAdapter
.Adapt<IEnumerable<Article>
, ArticleViewModel[]>
(src.Articles));
</code>
</pre>
<h3>OoMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.CreateMap<Article, ArticleViewModel>();
Mapper.CreateMap<Author, AuthorViewModel>()
.ForMember(dest =>
dest.OwnedArticles,
src =>
src.MapFrom(m => m.Articles));
</code>
</pre>
<h3>TinyMapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
// Mapping is not supported
</code>
</pre>
<h3>ValueInjecter:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.AddMap<Author, AuthorViewModel>
(src =>
{
var articles =
new ArticleViewModel[src.Articles.Count()];
var authorViewModel = new AuthorViewModel();
authorViewModel.InjectFrom(src);
for (var i = 0; i < articles.Length; i++)
{
articles[i] = Mapper.Map<Article,
ArticleViewModel>
(src.Articles.ElementAt(i));
}
authorViewModel.OwnedArticles = articles;
return authorViewModel;
});
</code>
</pre>
</section>
<section name="XL" class="chart-text" itemprop="text">
<h2>XL size test (XL)</h2>
This test is all about 2 objects with a collection type property as well as nested collections and multiple reference type properties. Please take a look at the diagram bellow:
<div class="diagram"><img src="images/ComplexUml.png" alt="Complex diagram" itemprop="image" /></div>
Here you will find mapping registration for different mappers:
<h3>Expressmapper:</h3>
<pre class="language-csharp">
<code class="language-csharp" itemprop="workExample" itemscope itemtype="code">
Mapper.Register<ProductVariant,
ProductVariantViewModel>();
Mapper.Register<Product,
ProductViewModel>()
.Member(dest => dest.DefaultSharedOption,