Description
"AutoMapper" like, Roslyn based, code fix provider that allows generating mapping code in design time. The main features are: generating the implementation of mapping methods and constructors, clone methods and lambda projections. There are also a few additional features like splatting or completing method invocation and object initialization with local variables. You can download it as Visual Studio Extension from Visual Studio Marketplace.
Mapping Generator alternatives and similar packages
Based on the "Object to object mapping" category.
Alternatively, view Mapping Generator alternatives based on common mentions on social networks and blogs.
-
ExpressMapper
A lightweight, lighting fast .Net mapper to map one type of object(s) to another in automated and easy way. ExpressMapper relies completely on the expression trees.
Get performance insights in less than 4 minutes
* Code Quality Rankings and insights are calculated and provided by Lumnify.
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README
Mapping Generator 
Branch | Status |
---|---|
Master | |
Develop |
"AutoMapper" like, Roslyn based, code fix provider that allows to generate mapping code in design time.
You can download it as Visual Studio Extension from Visual Studio Marketplace.
Motivation
The reasons behind why I don't use AutoMapper
Further Development
If you find this extension useful (you feel it helps you on the daily basis) you can support further development by buying me a coffee (it's simple, just click the button below). Sometimes it's hard to stay awake till midnight implementing new features, coffee helps me with that. . I really appreciate your support in any form.
Contributing
Before you start any contributing work, please read the contribution guidline
Supported IDE
VisualStudio.
Install as VSIX from Market place or as a NuGet package. Verify your Roslyn integration option in case you are using R#.
JetBrains Rider
Install as a NuGet package
VSCode
Install as a NuGet package or use this instruction to install from VSIX
Using along with Resharper
If you are not able to open Roslyn refactoring menu (ctr + .
) please verify your Resharper settings related to Visual Studio Integration
or Visual Studio code analysis
(depends on the R# version). For more information please check #50
[resharper settings](doc/resharper_settings.jpg)
Main features
Generate mapping method body
Pure mapping method
Non-void method that takes single parameter
public UserDTO Map(UserEntity entity)
{
}
[Generating pure mapping method implementation](doc/pure_mapping_method_newone.gif)
Updating method
Void method that takes two parameters
public void Update(UserDTO source, UserEntity target)
{
}
[Generating update method implementation](doc/update_method.gif)
Mapping Constructor
Constructor method that takes single complex parameter
public UserDTO(UserEntity user)
{
}
[Generating mapping constructor implementation](doc/mapping_constructor.gif)
Constructor method that takes more than one parameter
public UserDTO(string firstName, string lastName, int age, int cash)
{
}
Updating member method
Void member method that takes single parameter
public void UpdateWith(UserEntity en)
{
}
[Generating update member method imeplementation](doc/update_member_method.gif)
Void member method with more than one parameter
public void Update(string firstName, string lastName, int age)
{
}
Generate inline code for fixing Compiler Errors:
CS0029 Cannot implicitly convert type 'type' to 'type'
CS0266 Cannot implicitly convert type 'type1' to 'type2'. An explicit conversion exists (are you missing a cast?)
CS7036 There is no argument given that corresponds to the required formal parameter
Other mappings
Complete empty initialization block [Generate initialization bloc](doc/emptyInitialization.gif)
Complete empty initialization block in lambda expression
Expression<Func<T,T2>> = (T) => new T2{}
Provide local accessible variables as parameters for method and constructor invocation [locals as parameters](doc/localsforconstructor.gif)
Create missing mapping lambda
[mapping lambda](doc/mapping_lambda.gif)Generate ICloneable interface implementation
Object scaffolding
Mapping rules
- Mapping Property-To-Property
csharp target.FirstName = source.FirstName; target.LastName = source.LastName;
- Mapping Method Call-To-Property
csharp target.Total = source.GetTotal()
- Flattening with sub-property
csharp target.UnitId = source.Unit.Id
- Mapping complex property
csharp target.MainAddress = new AddressDTO(){ BuildingNo = source.MainAddress.BuildingNo, City = source.MainAddress.City, FlatNo = source.MainAddress.FlatNo, Street = source.MainAddress.Street, ZipCode = source.MainAddress.ZipCode };
- Mapping collections
csharp target.Addresses = source.Addresses.Select(sourceAddresse => new AddressDTO(){ BuildingNo = sourceAddresse.BuildingNo, City = sourceAddresse.City, FlatNo = sourceAddresse.FlatNo, Street = sourceAddresse.Street, ZipCode = sourceAddresse.ZipCode }).ToList().AsReadOnly();
- Unwrapping wrappers
csharp customerEntity.Kind = cutomerDTO.Kind.Selected;
public enum CustomerKind
{
Regular,
Premium
}
public class Dropdown<T>
{
public List<T> AllOptions { get; set; }
public T Selected { get; set; }
}
public class CustomerDTO
{
public string Name { get; set; }
public Dropdown<CustomerKind> Kind { get; set; }
}
public class UserEntity
{
public string Name { get; set; }
public CustomerKind Kind { get; set; }
}
Using existing direct mapping constructor
target.MainAddress = new AddressDTO(source.MainAddress);
using existing multi-parameter constuctor
this.User = new UserDTO(firstName: entity.FirstName, lastName: entity.LastName, age: entity.Age);