在windowsform中使用单元工作和存储库模式的DI使用autofac [英] DI with unitofwork and repository patterns in windowsform use autofac

问题描述

我在构建项目WindowsForm应用程序依赖注入时遇到问题。这是我在Program.cs文件中的代码。

 var builder = new ContainerBuilder（）; 
 builder.RegisterAssemblyTypes（Assembly.GetExecutingAssembly（））; 
 //注册Web API控制器。 
 //builder.RegisterApiControllers（Assembly.GetExecutingAssembly（））; 
 
 builder.RegisterType< UnitOfWork>（）。< IUnitOfWork>（）。InstancePerDependency（）; 
 builder.RegisterType< DbFactory>（）。< IDbFactory>（）。InstancePerDependency（）; 
 
 builder.RegisterType< DITestDbContext>（）。AsSelf（）。InstancePerDependency（）; 
 //builder.Register(c => app.GetDataProtectionProvider（））。InstancePerRequest（）; 
 
 //存储库
 builder.RegisterAssemblyTypes（typeof（ProductCategoryRepository）.Assembly）
 .Where（t => t.Name.EndsWith（Repository））
 .AsImplementedInterfaces（）。InstancePerDependency（）; 
 
 //服务
 builder.RegisterAssemblyTypes（typeof（ProductCategoryService）.Assembly）
 .Where（t => t.Name.EndsWith（Service））
 .AsImplementedInterfaces（）。InstancePerDependency（）; 
 
 Autofac.IContainer container = builder.Build（）; 
 
 Application.EnableVisualStyles（）; 
 Application.SetCompatibleTextRenderingDefault（false）; 
 Application.Run（container.Resolve< Form1>（））; 

这是我在Form1中的代码。 cs

 private IProductCategoryService productCategoryService; 
 private IUnitOfWork unitOfWork; 
 public Form1（IProductCategoryService productCategoryService，IUnitOfWork unitOfWork）
 {
 this.productCategoryService = productCategoryService; 
 this.unitOfWork = unitOfWork; 
 InitializeComponent（）; 
} 
 protected override void OnLoad（EventArgs e）
 {
 base.OnLoad（e）; 
 LoadProductCategory（）; 
} 
 
 private void LoadProductCategory（）
 {
 var data = productCategoryService.GetAll（）; 
 gridControl1.DataSource = data; 
} 

我收到错误



< blockquote class =quote>

Quote：

'在激活特定注册期间发生错误。有关详细信息，请参阅内部异常注册：Activator = Form1（ReflectionActivator），Services = [Presentation.Form1]，Lifetime = Autofac.Core.Lifetime.CurrentScopeLifetime，Sharing = None，Ownership = OwnedByLifetimeScope'

Quote：

NoConstructorsFoundException：找不到类型为DITest.Data.Infrastructure.UnitOfWork的可访问构造函数。

我尝试了什么：



任何人都可以帮我解决这个问题？谢谢！

解决方案

我解决了这个问题。我创建UnitOfWork文件时犯了一个错误。它的构造函数必须是public public。

I have problem when I build project WindowsForm application Dependency Injection. Here this is my code in Program.cs file.

var builder = new ContainerBuilder();
builder.RegisterAssemblyTypes(Assembly.GetExecutingAssembly());
// Register your Web API controllers.
//builder.RegisterApiControllers(Assembly.GetExecutingAssembly());

builder.RegisterType<UnitOfWork>().As<IUnitOfWork>().InstancePerDependency();
builder.RegisterType<DbFactory>().As<IDbFactory>().InstancePerDependency();

builder.RegisterType<DITestDbContext>().AsSelf().InstancePerDependency();
//builder.Register(c => app.GetDataProtectionProvider()).InstancePerRequest();

// Repositories
builder.RegisterAssemblyTypes(typeof(ProductCategoryRepository).Assembly)
                .Where(t => t.Name.EndsWith("Repository"))
                .AsImplementedInterfaces().InstancePerDependency();

// Services
builder.RegisterAssemblyTypes(typeof(ProductCategoryService).Assembly)
               .Where(t => t.Name.EndsWith("Service"))
               .AsImplementedInterfaces().InstancePerDependency();

Autofac.IContainer container = builder.Build();

Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(container.Resolve<Form1>());

And here this is my code in Form1.cs

private IProductCategoryService productCategoryService;
private IUnitOfWork unitOfWork;
public Form1(IProductCategoryService productCategoryService, IUnitOfWork unitOfWork)
{
   this.productCategoryService = productCategoryService;
   this.unitOfWork = unitOfWork;
   InitializeComponent();
}
protected override void OnLoad(EventArgs e)
{
   base.OnLoad(e);
   LoadProductCategory();
}

private void LoadProductCategory()
{
   var data = productCategoryService.GetAll();
   gridControl1.DataSource = data;
}

And I get the error

Quote:

'An error occurred during the activation of a particular registration. See the inner exception for details. Registration: Activator = Form1 (ReflectionActivator), Services = [Presentation.Form1], Lifetime = Autofac.Core.Lifetime.CurrentScopeLifetime, Sharing = None, Ownership = OwnedByLifetimeScope'

Quote:

NoConstructorsFoundException: No accessible constructors were found for the type 'DITest.Data.Infrastructure.UnitOfWork'.

What I have tried:

Anyone can help me how to fix this? Thanks you!

解决方案

I fixed that. I made a mistake when I create UnitOfWork file. constructor of it must be create public.

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