c# - Autofac not auto wiring properties to a custom class -

i trying setup class using autofac autowired properties custom class controller calls. have setup test project show this. have 2 projects in solution. mvc web application , class library services. here's code:

in service project, accountservice.cs:

public interface iaccountservice {     string doathing(); }  public class accountservice : iaccountservice {     public string doathing()     {         return "hello";     } } 

now rest in mvc web project.

global.asax.cs

var builder = new containerbuilder();  builder.registercontrollers(assembly.getexecutingassembly()).propertiesautowired();  builder.registerassemblytypes(typeof(accountservice).assembly)    .where(t => t.name.endswith("service"))    .asimplementedinterfaces().instanceperrequest();  builder.registertype<test>().propertiesautowired();  builder.registerfilterprovider();  var container = builder.build(); dependencyresolver.setresolver(new autofacdependencyresolver(container)); 

test.cs:

public class test {     //this null when var x = "" breakpoint hit.     public iaccountservice _accountservice { get; set; }      public test()     {      }      public void dosomething()     {         var x = "";     } } 

homecontroller.cs

public class homecontroller : controller {     //this works fine     public iaccountservice _accountservicetest { get; set; }     //this works fine     public iaccountservice _accountservice { get; set; }      public homecontroller(iaccountservice accountservice)     {         _accountservice = accountservice;     }     public actionresult index()     {         var t = new test();         t.dosomething();         return view();     }  //... } 

as can see code above, both _accountservicetest , _accountservice work fine in controller, when setting break point in dosomething() method of test.cs, _accountservice null, no matter put in global.asax.cs.

when create object new autofac not know object. it's normal null iaccountservice.

so proper way this: set interface test class , register it. add interface homecontroller constructor.

public homecontroller(iaccountservice accountservice,itest testservice)