All Questions
Tagged with dependency-injection autofac
1,232 questions
3
votes
1
answer
68
views
How to Use UnsafeAccessor to Check if Autofac.Core.Lifetime.LifetimeScope IsDisposed in .NET 8?
I'm currently working on a project using .NET 8 and Autofac for dependency injection. I've encountered a scenario where I need to check if an instance of Autofac.Core.Lifetime.LifetimeScope is already ...
- 33
1
vote
1
answer
142
views
Autofac generic decorator for different interfaces with the same basis
I have an application that is made up of two layers, WebApi and Domain.
The WebApi has controllers that invoke the business logic in the domain through an interface that is called IInteractor.
public ...
- 158
1
vote
3
answers
98
views
Polymorphic DI framework or setup for .NET?
The situation that I have is the following and albeit quite simple, it seems not to be supported (at least out of the box) for 2 DI frameworks that I tried.
public interface IPlugin
{
// misc
}
...
- 2,031
0
votes
1
answer
256
views
Is there a way to use Autofac Service Registration With Microsoft DI
I have some legacy projects that use Autofac for their DI container and they have all of their registration nicely organized into Modules. I have a new .net 8 API project and some flows need to ...
- 39
0
votes
1
answer
67
views
Example of multitenant with generic host in C#
I have not found a solution (or example of) using multitenancy with a generic host in C#.
The examples given in the Autofac repository (ConsoleApp, MVC and WCF) uses a strategy that is not supported (...
0
votes
0
answers
37
views
Depedency Injection with Autofac and Automapper
I have project where I implement Autofac and Automapper. There is no any problem when I added Automapper, but when I want to add mine implementation of interface I came across error with Automapper. ...
1
vote
0
answers
36
views
How to make Worker class compatible with AutoFac also with Microsoft Dependency Injections
I have an worker service what will be consumed in two project.
First project use Autofac for dependency injection the other use Microsoft.Extensions.DependencyInjection
First Worker look like:
public ...
- 11
0
votes
2
answers
78
views
Second Mediator Call Fails with ObjectDisposedException in ASP.NET Core Using Autofac: "Instances cannot be resolved as it has already been disposed"
I am trying to run two mediator calls inside a method. For some reason, the second mediator call always fail. I am expecting both calls to run without error. The full error message is:
System....
- 97
0
votes
0
answers
53
views
Runtime registration, register a new instance on runtime. (autofac)
I use DI to decouple some services from the rest of the application. I register them at the composition root of the project and read their configurations from the database. I would like to implement a ...
1
vote
1
answer
73
views
Autofac: how to prevent disposing service registered through ServiceCollection?
If I will register all services through ServiceCollection then I get capability for switching between different DI implementations that reused this collection: Autofac, Simple Injector, or Microsoft....
- 12.4k
-1
votes
1
answer
62
views
C# Dependency Injection from inheritence
Ive seen perviously the implementation of without explicitely injecting interface, when creating an interface can simply inherit for example Interface "IamContainerRegistered" and on compile ...
- 147
3
votes
1
answer
809
views
Using Autofac with HostApplicationBuilder
I am building a new .net 8 worker service and microsoft has modified the generic host. MSDN
HostApplicationBuilder builder = Host.CreateApplicationBuilder(args);
builder.Services.AddHostedService<...
- 596
0
votes
1
answer
73
views
Scoped services via delegate factories in singleton services with autofac
I've found some unexpected behavior in Autofac related to resolving scoped services via delegate factories, from within singleton services. Is the following behavior expected or am I misunderstanding ...
- 2,458
0
votes
0
answers
75
views
Error constructing handler for request of type Mediat.RequestHandler 2. Issue with Autofac or Mediatr?
First of all, I am aware that this error is very generic and there exists many such posts with similar error on stack overflow but still I am unable to overcome this issue. First of all the strange ...
0
votes
2
answers
288
views
injecting a service into a queue consumer using MassTransit
I have a consumer that is configured like follows
.ConfigureServices((hostContext, services) =>
{
services.AddMassTransit(cfg =>
{
cfg.AddConsumer <Consumers>();
...
0
votes
1
answer
34
views
Resolving complex named type in Autofac
//I am trying to resolve a complex named type in Autofac which is getting resolved properly and //easily in Unitycontainer. But facing issues
//I tried the following
//I have a mail MailTopic class ...
0
votes
1
answer
235
views
Unable to resolve service for type 'Business.Abstract.IAuthService' while attempting to activate 'WebAPI.Controllers.AuthController'
First of all I'm try to use n-layer architecture in my dotnet project.
Here is my error message: Unable to resolve service for type 'Business.Abstract.IAuthService' while attempting to activate '...
0
votes
1
answer
71
views
What is meaning of `key` in autofac configuration file?
What is key in configuration file?
I found the special term in autofac configuration file, but I do not know, what is the meaning of that? and when I have to use that?
{
"components": [{
...
- 2,953
0
votes
2
answers
49
views
How can I use orderby on ContainerBuilder.RegisterAssemblyTypes?
I have 2 service classes both ending with Service:
TurnoverGroupWebService & CashregisterTurnoverGroupWebService.
These two classes are supposed to be automatically registered as ...
- 783
1
vote
1
answer
44
views
Does Autofac Multitenant container works with IIndex<Key, Value>?
In my WPF app I use Multitenancy (2 tenants).
To simplify question, I'll show example:
var builder = new ContainerBuilder();
builder.RegisterModule<Module1>();
var container = builder....
- 15
0
votes
0
answers
139
views
Check if autofac module is already registered?
In our (huge, rather unmanageable) configuration there are many modules.
One of them is vital for another module to function as expected, but may also be problematic to register twice (I know, this is ...
- 1,646
0
votes
1
answer
328
views
Autofac ContainerBuilder.Populate() will not accept a ServiceCollection
I'm trying to do the following so that I can add HttpClient configs to a service collection. This is a .NET 4.8 Windows Service Application. I get the error shown in the image. How might I accomplish ...
- 1,385
0
votes
2
answers
1k
views
DelegatingHandler Dependency Injection
I have a class AuthorizationHandler that is derived from System.Net.Http.DelegatingHandler. It has a DI constuctor and overrides the SendAsync method to retrieve an authorization token from ...
- 842
0
votes
0
answers
301
views
Want to register hosted background service through Autofac in ASP.NET Core
I have tried to register a background service through Autofac, but my code is not able to resolve the dependency. If anyone did the same thing, please paste the answer here.
I try to register the ...
5
votes
0
answers
77
views
How to Prevent Nested Decorators in Autofac When Using Interface Inheritance?
I have a .NET 7.0 application where I am using Autofac as my DI container. I have two interfaces IReadonlyRepository<T> and IRepository<T>, where IRepository<T> inherits from ...
- 6,843
0
votes
1
answer
68
views
Autofac WhenInjectInto like Grace/Ninject
i have this implementation with Grace (it's the same in Ninject) but i need use then in Autofac but autofac does not have a "WhenInjectInto" functionality. How can i migrate this code? Thx
...
- 1,550
0
votes
1
answer
120
views
Is there a way to have a single instance of a service per an instance of another service without Owned<T>?
I'm writing a desktop application in C# and using Autofac for DI.
In my app I want to have a big service that depends on several smaller services that depend on each other. There should be only one ...
- 11
1
vote
0
answers
43
views
C# Autofac. Parameters for dependency at resolution time
I'm using Autofac as IoC container and I want to resolve with parameters at resolution time.
But I want to pass arguments to a dependency of resolution tree not to the class that I call on Resolve ...
- 734
0
votes
2
answers
151
views
How to register multiple instances of same class
I am trying to register two instances of the same class but both instances end up share the same parameter values.
I have registered the following in my startup.cs:
using Autofac;
using Autofac....
- 23
3
votes
1
answer
796
views
How to use Autofac / Castle DynamicProxy interceptors in ASP.NET Core 6?
I'm implementing an ASP.NET Core 6 service.
I'd like to implement an interceptor, chose Autofac based on earlier experience.
However, my interceptor is never executed.
Here's my DI configuration code ...
- 1,393
0
votes
1
answer
2k
views
Custom lifetime scope per request in ASP.NET Core without DependencyResolver
I am in the process of migrating a ASP.NET MVC (net48) application to ASP.NET Core (net6+).
In this application we make heavy use of tagged autofac scopes. In net48 we used the ...
0
votes
0
answers
31
views
Resolve a service using Autofac
Im quite lost here guys, there's this plugin for a gameserver (https://github.com/EvolutionPlugins/Dummy/blob/openmod/Dummy/Services/DummyProvider.cs) which i need to access all the tasks from the ...
0
votes
1
answer
161
views
Why cannot I resolve keyed registrations from lifetime scope?
I'm trying to resolve keyed service from a lifetime scope. The following code presents the issue:
public class Service1 : IService1 { }
public interface IService1 { }
public class Service2 : ...
- 25.9k
0
votes
2
answers
1k
views
Modular Monolith and Dependency Injection
I am currently struggling with dependency registration in my modular monolith with an ASP.NET Core 7 API.
Each of the modules requires a blob storage service. For this blob storage service, I have an ...
- 371
1
vote
2
answers
153
views
Dependency Injector and choosing the a class at runtime
My simple application could, using dependency injection, log something one way or the other way. Each logger is a class, derived from an interface ILogger. The class LoggerFactory decides which logger ...
- 378
0
votes
1
answer
50
views
Autofac: How to control which instance gets sent to a dependency during an internal resolution chain?
I have these classes:
Public Class ProcessRunner
Implements IProcessRunner
Public Sub New(Command As ICommand)
End Sub
End Class
Public Class Command
Implements ICommand
Public Sub New(...
- 6,357
2
votes
1
answer
4k
views
How to use IHttpClientFactory with .NET 4.8 without using DI from .NET Core/Standard
I've got a .NET 4.8 windows forms app which uses Autofac for DI. Currently, we're using a single HttpClient instance which is registered as a singleton:
builder.Register(c => {
var ...
- 4,414
0
votes
2
answers
561
views
How to inject NLog using Autofac
I'm writing a WinForm App using Autofac and NLog. And so I created an interface:
namespace BookShopApp.Logging
{
public interface ILoggerService<T> where T : class
{
void Info(...
- 11
1
vote
1
answer
50
views
I can't inject my IUnitOfWork class into my ApartmentManager class
I'm building an apartment dues management system. Below are my related classes. If I inject my IUnitOfWork class in my ApartmentManager class and pass it in ctor it gives the following error.
mistake:
...
- 37
0
votes
1
answer
325
views
Autofac: how to register/resolve a type whose constructor takes an abstract type as its parameter?
I have two concrete classes that inherit from an abstract class:
Public Class UpdateCommand
Inherits BaseCommand
Implements IUpdateCommand
Public Sub New(Root As DirectoryInfo)
MyBase.New(...
- 6,357
0
votes
1
answer
153
views
Autofac: how to register and resolve a type whose constructor requires a DirectoryInfo object?
I'm trying to do something which I suspect is pretty basic in Autofac (I'm just getting started on IoC/DI concepts and I'm still very wobbly-kneed), but I'm running into dead-ends. Any similar info I'...
- 6,357
0
votes
1
answer
827
views
How to avoid memory leaks with Autofac?
I'm trying to better understand IoC/DI, in particular the concept of scopes.
I'm using a sample WPF app (repo here) from a Pluralsight course (great service, BTW) and modifying it slightly. Naturally, ...
- 6,357
0
votes
1
answer
477
views
Is it the best practice to inject ILifetimeScope to the constructor?
I'm using static function Resolve() in ILifetimeScope instance injected from constructor.
private readonly ILifetimeScope _container;
public MyService(ILifetimeScope container)
{
_container = ...
- 1,126
1
vote
1
answer
251
views
How to Resolve ILogger in Autofac container
I am trying to replace dryIOC container with autofac container for some reason but I don't know the exact syntax how could I resolve ILogger uisng autofac
Here is how I register ILogger in DryIoc
...
- 25
0
votes
0
answers
49
views
AutoFac get multiple instances of same service injected but constructed differently
Is it possible to resolve multiple instances of the same service registered for an interface but constructed with different parameters?
For example, I have a Interface and Service:
public interface ...
- 1,115
0
votes
0
answers
100
views
Convert to use dependency injection?
I have the following example code:
namespace ConsoleApp3
{
public interface IPriceList
{
double GetPrice();
}
public class PriceList : IPriceList
{
public double ...
- 2,666
0
votes
2
answers
45
views
Why can Autofac not create this class that takes a non-generic implementation of a generic interface as a constructor parameter?
Using Autofac for injection.
Given
interface IStateMachine<TState, TTrigger> { }
class ConcreteStateMachine : IStateMachine<MachineState, Trigger> { }
builder.RegisterType<...
- 23
0
votes
0
answers
65
views
What do I do if I have multiple components?
I just started using Autofac. How do I register multiple components? I see this in the QuickStart guide:
private static IContainer Container { get; set; }
.
.
.
var builder = new ContainerBuilder();
...
1
vote
1
answer
230
views
Autofac - How to access IRegistrationBuilder from IResolvePipelineBuilder & ResolveRequestContext?
I would like to extend my service registration [e.g. EnableInterfaceInterceptors] from Autofac Pipeline. However, I couldn't find a way to achieve that. Is there any entrypoint for me to access the ...
- 1,851
1
vote
1
answer
204
views
Autofac.Core.Registration.ComponentNotRegisteredException even the interface seems to be registered
I try to implement a WPF application using dependency injection and the MVVM pattern using the frameworks "CommunityFramework.MVVM" and "Autofac".
What I have so far is the the ...
- 58