Install Unity Container in C# .NET Core
Introduction: Unity Container is a dependency injection (DI) container provided by Microsoft. It helps manage the creation and resolution of object dependencies in an application. This documentation provides step-by-step instructions on how to install Unity Container in a C# .NET Core project.
Prerequisites:
- Visual Studio or Visual Studio Code installed.
- .NET Core SDK installed.
- Basic knowledge of C# and dependency injection.
Installation Steps:
Step 1: Create a New .NET Core Project
- Open Visual Studio or Visual Studio Code.
- Click on "Create a new project."
- Select ".NET Core" under "Create a new project" menu.
- Choose the desired project template and click "Next."
- Provide a project name, solution name, and location. Click "Create" to create the project.
Step 2: Install Unity Container Package
- Open the project in Visual Studio or Visual Studio Code.
- Open the terminal or package manager console.
- Run the following command to install Unity Container package:
shelldotnet add package Unity
- Wait for the package to be installed. Unity Container is now added to the project.
Step 3: Configure Unity Container
- Open the
Startup.cs
file or create a new file namedUnityConfig.cs
to configure Unity Container. - Add the following using statement at the top of the file:
csharpusing Unity;
- Inside the
ConfigureServices
method, add the following code to configure Unity Container:
csharppublic void ConfigureServices(IServiceCollection services)
{
// ...
var container = new UnityContainer();
container.RegisterType<IMyService, MyService>();
// ...
services.AddSingleton<IUnityContainer>(container);
}
- Replace
IMyService
andMyService
with your own interface and implementation classes.
Step 4: Use Unity Container
- Open a controller or a class where you want to use Unity Container for dependency injection.
- Add the following using statement at the top of the file:
csharpusing Unity;
- In the class constructor, add a parameter of type
IUnityContainer
:
csharpprivate readonly IUnityContainer _container;
public MyClass(IUnityContainer container)
{
_container = container;
}
- Use
_container.Resolve<T>()
to resolve dependencies:
csharppublic void SomeMethod()
{
var myService = _container.Resolve<IMyService>();
// Use myService...
}
Conclusion: By following the steps outlined in this documentation, you have successfully installed Unity Container in a C# .NET Core project. Unity Container allows you to leverage dependency injection to manage object dependencies efficiently.
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