Which NET Dependency Injection frameworks are worth looking into

Question

Which C   NET Dependency Injection frameworks are worth looking into  And what can you say about their complexity and speed

User · Answer

I think a good place to start is with Ninject  it is new and has taken into account alot of fine tuning and is really fast   Nate  the developer  really has a great site and great support

User · Answer

I use Simple Injector      Simple Injector is an easy  flexible and fast dependency injection library that uses best practice to guide your solutions toward the pit of success

User · Answer

Spring Net is quite solid  but the documentation took some time to wade through   Autofac is good  and while  Net 2 0 is supported  you need VS 2008 to compile it  or else use the command line to build your app

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edit  not by the author   There is a comprehensive list of IoC frameworks available at https   github com quozd awesome-dotnet blob master README md ioc    Castle Windsor - Castle Windsor is best of breed  mature Inversion of Control container available for  NET and Silverlight Unity - Lightweight extensible dependency injection container with support for constructor  property  and method call injection Autofac - An addictive  NET IoC container DryIoc - Simple  fast all fully featured IoC container  Ninject - The ninja of  NET dependency injectors StructureMap - The original IoC DI Container for  Net Spring Net - Spring NET is an open source application framework that makes building  enterprise  NET applications easier LightInject - A ultra lightweight IoC container Simple Injector - Simple Injector is an easy-to-use Dependency Injection  DI  library for  NET 4  that supports Silverlight 4   Windows Phone 8  Windows 8 including Universal apps and Mono  Microsoft Extensions DependencyInjection - The default IoC container for ASP NET Core applications  Scrutor - Assembly scanning extensions for Microsoft Extensions DependencyInjection  VS MEF - Managed Extensibility Framework  MEF  implementation used by Visual Studio  TinyIoC - An easy to use  hassle free  Inversion of Control Container for small projects  libraries and beginners alike    Original answer follows     I suppose I might be being a bit picky here but it s important to note that DI  Dependency Injection  is a programming pattern and is facilitated by  but does not require  an IoC  Inversion of Control  framework  IoC frameworks just make DI much easier and they provide a host of other benefits over and above DI   That being said  I m sure that s what you were asking  About IoC Frameworks  I used to use Spring Net and CastleWindsor a lot  but the real pain in the behind was all that pesky XML config you had to write  They re pretty much all moving this way now  so I have been using StructureMap for the last year or so  and since it has moved to a fluent config using strongly typed generics and a registry  my pain barrier in using IoC has dropped to below zero  I get an absolute kick out of knowing now that my IoC config is checked at compile-time  for the most part  and I have had nothing but joy with StructureMap and its speed  I won t say that the others were slow at runtime  but they were more difficult for me to setup and frustration often won the day   Update   I ve been using Ninject on my latest project and it has been an absolute pleasure to use  Words fail me a bit here  but  as we say in the UK  this framework is  the Dogs   I would highly recommend it for any green fields projects where you want to be up and running quickly  I got all I needed from a fantastic set of Ninject screencasts by Justin Etheredge  I can t see that retro-fitting Ninject into existing code being a problem at all  but then the same could be said of StructureMap in my experience  It ll be a tough choice going forward between those two  but I d rather have competition than stagnation and there s a decent amount of healthy competition out there   Other IoC screencasts can also be found here on Dimecasts

User · Answer

Ninject is great  It seems really fast  but I haven t done any comparisons  I know Nate  the author  did some comparisons between Ninject and other DI frameworks and is looking for more ways to improve the speed of Ninject   I ve heard lots of people I respect say good things about StructureMap and CastleWindsor  Those  in my mind  are the big three to look at right now

User · Answer

I can recommend Ninject  It s incredibly fast and easy to use but only if you don t need XML configuration  else you should use Windsor

User · Answer

I m a huge fan of Castle   I love the facilities it also provides beyond the IoC Container story   It really simplfies using NHibernate  logging  AOP  etc   I also use Binsor for configuration with Boo and have really fallen in love with Boo as a language because of it

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I ve used Spring NET in the past and had great success with it  I never noticed any substantial overhead with it  though the project we used it on was fairly heavy on its own  It only took a little time reading through the documentation to get it set up

User · Answer

It depends on what you are looking for  as they each have their pros and cons     Spring NET is the most mature as it comes out of Spring from the Java world  Spring has a very rich set of framework libraries that extend it to support Web  Windows  etc  Castle Windsor is one of the most widely used in the  NET platform and has the largest ecosystem  is highly configurable   extensible  has custom lifetime management  AOP support  has inherent NHibernate support and is an all around awesome container  Windsor is part of an entire stack which includes Monorail  Active Record  etc  NHibernate itself builds on top of Windsor  Structure Map has very rich and fine grained configuration through an internal DSL  Autofac is an IoC container of the new age with all of it s inherent functional programming support  It also takes a different approach on managing lifetime than the others  Autofac is still very new  but it pushes the bar on what is possible with IoC  Ninject I have heard is more bare bones with a less is more approach  heard not experienced   The biggest discriminator of Unity is  it s from and supported by Microsoft  p amp p   Unity has very good performance  and great documentation  It is also highly configurable  It doesn t have all the bells and whistles of say Castle   Structure Map    So in summary  it really depends on what is important to you  I would agree with others on going and evaluating and seeing which one fits  The nice thing is you have a nice selection of donuts rather than just having to have a jelly one

User · Answer

I spent the better part of a day struggling without success to get the simplest Spring NET example working  Could never figure out how to get it to find my assembly from the XML file  In about 2 hours  on the other hand  I was able to get Ninject working  including testing integration with both NUnit and MSTest

User · Answer

The great thing about C  is that it is following a path beaten by years of Java developers before it  So  my advice  generally speaking when looking for tools of this nature  is to look for the solid Java answer and see if there exists a  NET adaptation yet   So when it comes to DI  and there are so many options out there  this really is a matter of taste  is Spring NET  Additionally  it s always wise to research the people behind projects  I have no issue suggesting SourceGear products for source control  outside of using them  because I have respect for Eric Sink  I have seen Mark Pollack speak and what can I say  the guy just gets it   In the end  there are a lot of DI frameworks and your best bet is to do some sample projects with a few of them and make an educated choice   Good luck

User · Answer

Autofac   https   github com autofac Autofac It is really fast and pretty good   Here is a link with comparisons  made after Ninject fixed a memory leak issue    http   www codinginstinct com 2008 05 ioc-container-benchmark-rerevisted html

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