http://blogs.msdn.com/b/roncain/archive/2012/07/16/dependency-injection-with-asp-net-web-api-and-autofac.aspxThis post describes how we can use Dependency Injection (DI) in ASP.NET Web API using Autofac to accomplish a fairly common task – namely creating an ApiController with custom parameters to service an Http request. In WebApi, we define the basic verbsen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/roncain/archive/2012/07/16/dependency-injection-with-asp-net-web-api-and-autofac.aspx#10378944Tue, 18 Dec 2012 09:15:20 GMT91d46819-8472-40ad-a661-2c78acb4018c:10378944Raghavendra<p>Hi I am using Autofac in vb.net. I could not able to find builder.RegisterAssemblyTypes method(RegisterAssemblyTypes ) &amp; InstancePerApiRequest(). Could you please help me</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10378944" width="1" height="1">http://blogs.msdn.com/b/roncain/archive/2012/07/16/dependency-injection-with-asp-net-web-api-and-autofac.aspx#10349489Fri, 14 Sep 2012 15:01:14 GMT91d46819-8472-40ad-a661-2c78acb4018c:10349489Alex Meyer-Gleaves<p>You can now use Autofac to create filters that support DI without using attributes. :)</p> <p><a rel="nofollow" target="_new" href="http://alx.to/O9n4VU">http://alx.to/O9n4VU</a></p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10349489" width="1" height="1">http://blogs.msdn.com/b/roncain/archive/2012/07/16/dependency-injection-with-asp-net-web-api-and-autofac.aspx#10342737Thu, 23 Aug 2012 13:21:54 GMT91d46819-8472-40ad-a661-2c78acb4018c:10342737Ron Cain<p>Sorry to be tardy. &nbsp;Are you asking how an ActionFilter could pull from the DI container? &nbsp;Because ActionFilters are expressed as attributes, you can&#39;t inject the attributes themselves, but you could write an ActionFilter that was knowledgable about GlobalConfiguration.Configuration to get the dependency resolver to ask for some service instance it would execute when called. &nbsp;Would that do what you&#39;re looking for?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10342737" width="1" height="1">http://blogs.msdn.com/b/roncain/archive/2012/07/16/dependency-injection-with-asp-net-web-api-and-autofac.aspx#10330957Wed, 18 Jul 2012 04:14:48 GMT91d46819-8472-40ad-a661-2c78acb4018c:10330957crypted<p>Awesome,Thanks for sharing. Do you have any idea how to inject dependencies in ActionFilter ?</p> <div style="clear:both;"></div><img src="http://blogs.msdn.com/aggbug.aspx?PostID=10330957" width="1" height="1">