Scoped objects are the same within a request, but di. Transient lifetime services are created each time they are requested. For example, in a web application it creates 1 instance per each request. Scoped lifetime services are. AddSingleton . Jul 6, 2018 at 6:49. . Anupam Maiti Dec 14, 2020. NET app, same service instance will be provided in one HTTP request when a service registered by AddScoped. ASP. AddTransient<T> - adds a type that is created again each time it's requested. AddTransient vs AddScoped vs AddSingleton 9/15/2023 5:54:16 AM. Is there any way I can achieve AddScoped() and Addransient() functionality in Angular?,Connect and share knowledge within a single location that is structured and easy to search. C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. 29; asked Sep 14, 2022 at 20:12C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. Dependency injection (DI) is a technique for accessing services configured in a central location: Framework-registered services can be injected directly into Razor components. CreateDefaultService (); var chromeOptions = new ChromeOptions (); chromeOptions. C# Dev Kit for VS Code Sep 13, 2023. This is where I discovered the IHttpContextAccessor interface and a whole new world opened up for me. 8. C# Web API - AddSingleton vs. NET Core Understanding the life cycle of Dependency Injection (DI) is very important in ASP. g. Whenever the type is to be resolved, it will pass. AddScoped や AddTransient や AddSingleton はラムダ式を受け取るオーバーライドがあって、それを使うとオブジェクトの生成処理をカスタマイズできるようになっています。 例えば MyService の生成ロジックを自前のものに置き換えたコードを以下. VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it RequiredRegistering Dependencies. View another examples Add Own solution. Wrapping up. NET Core 2. AddSingleton vs AddScoped vs AddTransient 三者的差异行. You can register services using methods like AddTransient, AddScoped, and AddSingleton. Định nghĩa trên trang Asp. NET Core heavily depends on Dependency. This comprehensive guide aims to elucidate the differences between AddTransient and AddScoped to help developers make informed decisions when. This is particularly useful in the ASP. In ASP. AddInstance. In this video, I am going to show you an example of following DI services: 1. Transient if for when you need to isolate a call from the scope. This means that whenever a request for the service is. In this video we will discuss the differences between AddSingleton(),. IServiceCollection (requires 'Service : null) <Extension()> Public Function AddTransient(Of TService As Class, TImplementation As Class) (services As IServiceCollection) As IServiceCollection Type ParametersAddSingleton<> : Projemizi çalıştırdığımızda, tek bir instance oluşturularak memoryde bu bilgiyi tutar ve gelen requestlerde üretilen aynı intancesı kullanır. net core?. Transient lifetime services are created each time when they are requested. youtube r/dotnet. C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. There is a BuildServiceProvider overload that allows preventing resolving Scoped instances from the root container. AddSingleton<T> - adds a type when it's first requested and keeps hold of it. AddScoped, services. Net Core MVC ASP. AddSingleton method creates an instance of the service which is available in the whole life of the Web App and is the same in all the requests. NET Core. AddSingleton1. There's also if it's. In ASP. 学习AddSingleton、AddScoped、AddTransient三个方法区别 AddSingleton()方法创建一个Singleton服务，首次请求会创建服务，然后，所有后续的请求中都会使用相同的实例，整个应用程序生命周期都使用该单个实例AddScoped():不同. netWhen registering services with the service container you must specify the lifetime of the service instance. 我们来回顾下 IStudentRepository 接口。 Add()方法将新学生添加到存储中。Understand the differences between AddTransient and AddScoped in ASP. However, there is much debate in our engineer department over. Các phương thức để đăng dịch vụ vào ServiceCollection như AddSingleton, AddSingleton, AddTransient còn có phiên bản. NET Core DI) 2. NET Core 架構上更傾向靠依賴注入 (Dependency Injection)處理服務物件的傳遞， 造成一項非常有感的改變 - 過去一些慣用靜態物件或方法解決的情境，在 ASP. NET Community, if you are using C#, VB. What is the AddSingleton vs AddScoped vs Add Transient C Asp net Core - There are three ways by which dependencies can be registered in Startup. There are many different scopes available to register dependencies. AddTransient<T> - adds a type that is created again each time it's requested. This means that if a Transient is injected into multiple consumers, each. Dependency injection in . 17 explains on the Reference > Driver > Connecting page in the Mongo Client Re-use section that:. This lifetime is useful for services. . NET Core application, we can represent the lifetime of injected services this way:For example a Scan method which looks in the calling assembly, and adds all concrete classes as transient services would look like the following: services. NET Core. But that also misses the mark. In ASP. The ins Dependency injection in . AddTransient - Một thể hiện của service sẽ được cung cấp đến mỗi class request nó. hello everyone, Title : 44. AddTransient. if you inject two services both using the same repository, then both services will get their own instance of the repository, not a shared one for the duration of the request. 與 ASP. Thus, the instance is always new in the different requests. Peruse Blazor Server Addscoped Vs Addsingleton buy items, offerings, and more in your local area. I would also suggest you bind MyHostedService in this manner (if it. Aqui vale notar que, num serviço sem estado (stateless) ou uma aplicação sem contexto de requisição, como um "Console" por exemplo, Scoped pode ter o mesmo comportamento de Transient, uma vez que se não for possível validar se. In ASP. . I'm creating web application with ASP. NET Core you can use the simple built-in IoC container or you can also plug any other more advanced IoC container like Autofac. この記事では、BlazorにおけるDIの各Scopeについて、Blazor Server、Blazor WebAssemblyそれぞれの観点で見てみようと思います。. That being said, using dependency injection in WPF is actually something that has been covered by a number of frameworks already. Stack Overflow | The World’s Largest Online Community for DevelopersWe can register these services with the AddTransient(), AddScoped() and AddSingleton() methods respectively. To create a service with the transient lifetime, you have to use the AddTransient method. So every class within the request that resolves a scoped instance gets that same instance. 我们来回顾下 IStudentRepository 接口。 Add()方法将新学生添加到存储中。 Understand the differences between AddTransient and AddScoped in ASP. e. The other two methods available are AddSingleton & AddScoped. If you are not sure about which one to use to register Dependency. Let's see the below diagram to understand AddSinglton, Suppose that the User sent a request -> WebApplication -> DI Engine. NET Core, there are different ways to register services. NET console application named ConsoleDI. services. – DavidG. - Use `AddScoped` when you want to maintain state within the scope of an HTTP request or a defined context. لاحظ أن IOperationSingletionInstance يختلف عن حقن التبعية الأخرى في أنه يتم إنشاء مثيل له بشكل صريح. Dependency Injections (DI) are one of the principal concepts of ASP. Now, set the Project name and Location, and then click on the Next. net core, asp. SINGLETON: Same object for every controller and request. NET Core - GitHub - irajuahmed/TransientScopedSingleton: Understanding AddTransient Vs AddScoped Vs AddSingleton In ASP. Net Core Web API ASP. AddScoped<IUserService, UserService>(); services. There is no out of the box way to do it with ASP. NET Core can be defined in 3 forms based on lifetime of service. AddSingleton. 21. GetRequiredService<IAnotherOne> (), "")); The factory delegate is a delayed invocation. ServiceDescriptor describes the information of the injected. Find the concrete classes . C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. We may register services in AWS Lambda with AddTransient, AddScoped and AddSingleton as well. Nov 6, 2015 at 12:53. NET Core applications: AddTransient, AddScoped, and AddSingleton. AddTransient: With a transient service, a new instance is provided every time a service instance is requested whether it is in the scope of the same HTTP request or across different HTTP requests. Services. net-core-webapi; abhishek. services. In this article, you will learn about AddTransient Vs AddScoped Vs AddSingleton In ASP. In ASP. AddSingleton<IUserInfo , UserInfo > (); and this UserInfo is populated somewhere else, might be middleware, or a service like factory with phoneNumber. Transient objects are always different; a new instance is provided to every controller and every service. Net Core MVC ASP. . What is the load expected to the app ? If you have much concurrency, I think using AddScoped would mean a lot of unnecessary burden to initiate and close connections for every request. AddScoped3. Có 3 mức độ vòng đời: addTransient, addScoped, addSingleton. youtube r/dotnet. net-core; asp. I understand the Singleton design pattern and I sort of understand dependency injection, but. White nothing is wrong. 2. Singleton lifetime services are created only the first time when they are requested (or when ConfigureServices is run if you specify an instance there). VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it RequiredAdd a comment. AddTransient 2. This same instance is then used by all the subsequent requests. In order to understand addtransient vs scoped vs singleton, following are the utility of 3 methods. AddScoped () - This method creates a Scoped service. Extensions. Scoped lifetime services are created once per request. For example, if two dependencies both take a third dependency, does that third item nee to be a distinct object or can it be shared. NET Core Yasin Panwala Apr 2, 2021 0 11. I kown the difference between AddScoped, AddSingleton and AddTransient in a ASP. However, you can use both together if you want to inject the abstract class. This lifetime works best for lightweight, stateless services. Transient lifetime services are created each time they are requested. This is fine for most services, but if it really is a background service you want, you probably want it to start right away. C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. The following is an interface. ( Scope ở đây chính là mỗi request gửi đến ứng dụng). I hope you got a detailed idea about addtransient vs scoped vs singleton from this article. These options dictate how services are managed in ; Achieving Dependency Injection in . Trong phương thức ConfigureServices đăng ký SomeService sử dụng phương thức AddScoped sử dụng IScopedService interface. These features include the ability to use the "scoped" lifetime for services, inject open generic types, use extension methods on the IServiceProvider. AddSingleton. NET Core Dependency Injection/IoC container, but it's "by design". NET Core 中的相依性插入Solution 1. AddClasses() // to register . AddTransient. These will usually not use the dependency injection container from ASP. NET 8 version of this article. Sao chép-dán mã này và nhấn vào nút tạo trong chế độ xem và chuyển đổi giữa AddSingleton, AddScoped và AddTransient bạn sẽ nhận được mỗi lần một kết quả khác nhau có thể giúp bạn hiểu lời giải thích này:. 3,930 6 34 57. AddTransient () インジェクション毎にインスタンスを生成. This lifetime can be used in stateless service. Your startup code ends up littered with gazillion. AddSingleton and services. AddSingleton will return a single/reusable instance of an object. In ASP. AddSingleton(. AddScoped<T> - adds a type that is kept for the scope of the request. It's a basic CRUD system. Things look good and perfect; ASP. All middlewares, MVC controllers, etc. C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. Watch online 20- addSingletone vs addScoped vs AddTransient in aspnet core ما هو الفرق بين Download MP4 360p MP4 720p. AddSingleton vs AddScoped vs AddTransient in . NET 5 "Startup-based" app to . By using the DI framework in . That being said it supports simple scenarios. Some of these were added to resolve existing bugs and edge cases, and others were added to support the. นั่นสามารถทำได้ถึง 3 แบบ คือ. NET Angular Angular Form AngularJS ASP. VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it RequiredMicrosoft . In this article, you will learn about AddTransient Vs AddScoped Vs AddSingleton In ASP. Thus, the instance is always new in the different requests. AddTransient vs AddScoped vs AddSingleton. AddTransient. It seems that when we use AddHttpClient method it overwrites any singleton services with either a transient or scoped service. If everything is a factory, then every class. I do have basic understanding between AddTransient Vs AddScoped Vs AddSingleton. Without a load of testing. ASP. It's still not possible for us to help with this example. - Use `AddScoped` when you want to maintain state within the scope of an HTTP request. AddSingleton vs AddScoped vs AddTransient in . 0 from the drop-down list at the top. g. This blog explains each of these methods. net الأساسية؟. In this article, you will learn. Hosting; HostApplicationBuilder builder = Host. VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it RequiredTo configure a scoped service in . DependencyInjection and Microsoft. Published: Jan 15 2022 • Last Reviewed: Sep 30 2023 Learn about dependency injection in ASP. AddTransient2. I know how these 3 behave individually but I am not sure if we can call. If you have a singleton that depends on that scoped dependency, that singleton will be created using an instance of. Net Core [2] (JAYANT TRIPATHY)(GitHub Repository) AddTransient Vs AddScoped Vs AddSingleton Example in ASP. In this article, I am going to explain the difference, scope and usage scenario of these three types. See examples of how to register and inject services of each type, and how they affect the scope of the service across HTTP requests. Dependency injection (DI) là một kỹ thuật dùng để đạt được Inversion of Control (IoC) 1 giữa các lớp và các phụ thuộc của chúng. Learn the power of AddTransient(), AddScoped() and AddSingleton() If you create your own services and I guess you do because you most likely use a database and that is enough, you read something. There are three ways to register dependencies: AddTransient, AddScoped and AddSingleton. Link to short: AddTransient vs AddScoped (or AddSingleton) when setting up your services for DI. Chúng ta đã có transient service được inject vào controller. Objects injected using Dependency Injection have a specific lifetime. AddSingleton scope, but I also read about it is working "async local", and I am also aware of the sophisticated working of async in ASP. That means scoped services are generally created per web request. An object. Learn how to use . VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it RequiredI've read about configuring IHttpContextAccessor as services. NET Core/MVC, so you can choose which one to use when, while creating Dependency Injection in your . Documentation here. TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>(); services. AddScoped instead of services. AddSingleton vs AddScoped vs AddTransient. Net MVC Authentication AWS Azure Azure App Service Azure DevOps Blazor Blazor wasm Blazor Web Assembly Blog C C#. In this article. IServiceCollection (requires 'Service : null) <Extension()> Public Function AddTransient(Of TService As Class, TImplementation As Class) (services As IServiceCollection) As IServiceCollection Type ParametersTransient in ASP. NET 7). Extensions. VK on Solved: Git Error: “Updates were rejected because the tip of your current branch is behind its remote counterpart” How to Implement IDisposable Interface in C# - Eastern Coder on Use of Interface in C# – Why is it Requiredinternal static IHostBuilder CreateHostBuilder(string listener, CommunicationChannelElement communicationChannelElement) { //here i want how i can use addScoped or AddTransient with communication paramter return Host. Tiếp tục chúng ta sẽ tìm hiểu ASP. NET 6, with a focus on easy to read and minimal clutter coding. AddSingleton<> () to register a singleton service to configure options. The of the server project. NET dependency injection (DI) to achieve Inversion of Control (IoC) between classes and their dependencies. Here is the link to the MS docs: Microsoft. In one of the previous article, we have mentioned File upload on AWS S3 using C# in ASP. In apps that process requests, transient services are disposed at the end of the request. AddScoped () - This method creates a Scoped service. NETCORE - Hablando de di inyección de Addsingleton, AddTransient, AddScoped. AddTransient<IEmailSender, AuthMessageSender> (); In their tutorials for sending e-mails in ASP. Conclusion. AddSingleton: service is created only once and reused for the lifetime of the application In my web application I have a stateful object which needs to be the same between requests, so I register it as a singleton: services. 1 MVC Tutorial | HindiThe most famous question if you are going for . In this video, I am. This tutorial shows how to use dependency injection (DI) in . A reference to this instance after the operation has completed. GetRequiredService<IOtherService> (), x. NET dependency injection describe an AddScoped method, which I also see as a member of IServiceCollection in Visual Studio's autocompletion when working on an ASP. Add the Microsoft. This overload was added after the 1. C# Vs Python – Know the difference; AddTransient vs AddScoped vs AddSingleton; Recent Comments. Understanding AddTransient Vs AddScoped Vs AddSingleton In ASP. ASP. You can specify one of 3 options singleton, scoped or transient. net 5, mvc, controller, logging İlişkili yazılar. r/dotnet . In this video, I am going to show you an example of following DI services:1. 在本章节中，我们将通过一个示例讨论 ASP. NET 7. Scoped lifetime services are created once per request. 請問，如果是 console 類型的專案 AddScoped() 是等同於 AddSingleton() 嗎 ? # 2022-04-16 02:14 PM by Jeffrey to Ho. Basicamente criei 3 serviços bastante simples e parecidos (apenas para fins didáticos) e os injetei utilizando AddSingleton, AddScoped e AddTransient. AddScoped method: This is a better choice if you wish to maintain a state within a request. AddScoped or services. you are at the right place!. Configuration can't work with the abstract type, since you have to pass a IDbContextOptionsBuilder<T> into your DbContext, where T is your concrete implementation. AddDbContext also allows you to configure it at the same time. In a console app, windows service, or any type of app, including a web hosted app, you can create a lifetime scope whenever you feel it is needed. 1. I think AddSingleton is out as I'm not sure how one GrpcChannel will handle lots of parallel requests at the same time and I'd like to pass the CancellationToken for the current request. . Suggested Videos Part 44 - AddSingleton vs AddScoped vs AddTransient | Text | Slides Part 45 - Introduction to entity framework core | Text | Slides Part 46 - Install entity framework core in visual studio | Text | Slides In this video we will discuss the significance of the DbContext class in Entity Framework Core One of the very important classes in. Abstractions in . 内容. Net MVC Authentication AWS Azure Azure App Service Azure DevOps Blazor Blazor wasm Blazor Web Assembly Blog C C#. These options dictate how services are managed in ; Mastering Dependency Injection and Third-Party IoC Integration 8/29/2023 8:59:26 AM. net 8. These options dictate how services are managed in terms of their lifecycle and behavior. Singleton. , Podcast 370:. NET Core's dependency injection system, you can choose from three service. Instance Lifetime. Minimal APIs bring a fresh and clean approach to developing APIs in (ASP). It has methods – AddTransient, AddScoped and AddSingleton – to register the. Net Core? Q161. NET is a built-in part of the framework, along with configuration, logging, and the options pattern. 1 As far as I know, the Singleton is normally used for a global single instance. NET Core 依賴注入 [4] (Microsoft Learm) . Only routable Server render mode components with an directive are placed in the Components/Pages folder. 1. Extensions. NET Core ต่างกันยังไงนะ. . Scoped (AddScoped) Uygulama içerisindeki bağımlılık oluşturduğumu nesnenin request sonlanana kadar aynı nesneyi kullanmasını farklı bir çağrı için gelindiğinde yeni bir nesne yaratılmasını. i. Singleton: In situation when you need to store number of employees then you can create singleton cause every time you create new employee then it will increment the number so in that situation you need singleton. The AddTransient method creates a new instance every time a service request is raised, doesn’t matter it is in the same HTTP request or a different HTTP request. The three choices are AddTransient, AddScoped and AddSingleton - they decide the lifetime of your dependency: AddTransient: You get a new instance of the dependency every time it is injected as a dependency in a controller or service. With AddScope() method, we get new instance with different HTTP requests. But here we use AddSingleton as per requirement. NET MVC 6 Dependency Injection, and also a good basic walk-through here. In this post I talk about some of the new features added to Microsoft. [1] (JAYANT TRIPATHY) AddTransient Vs AddScoped Vs AddSingleton Example in ASP. NET Core can be defined in 3 forms based on lifetime of service. asp. As soon as you use AddSingleton, you risk leaking state between two different requests, since the object will be shared between every request. In the above code snippet , i. Learn the difference in the methods AddTransient vs AddScoped vs AddSingleton when setting up dependency injection in your application. NET Core web project and you are using the built-in IoC container of ASP. These options dictate how services are managed inDI サービスへオブジェクトを登録するメソッドは以下の3つがあります。. Singleton means that an object lives as long as the application lives. Scoped. But in WPF and UWP app, AddScoped seems same as AddSingleton, am I right? When should I use AddScoped in a desktop. Compare AddTransient,. What I have tried: tried searching for the definition and usage of same but didn't get the clear understanding. When we register a type as singleton, only one instance is available throughout the application and. NET 8 version of this article. AddTransient<T> - adds a type that is created again each time it's requested. . NET 6. A new instance of a Transient service is created each time it is requested. (Of course, it could equally well be AddSingleton or AddScoped as well. In this video we will discuss the differences between AddSingleton (), AddScoped () and AddTransient () methods in. Transient objects do not have a pre-defined lifetime, but will typically follow the lifetime of their host. e. NET, it's pretty easy right from the get-go to define which concrete classes you should get when requesting various interfaces. Transient : The object is created each time they're injected. The first one is the IServiceCollection interface, a core interface of the dependency injection. AddSingleton vs AddScoped vs AddTransient 三者的差异行. NET, AddTransient, AddScoped e AddSingleton, e todas estão ligadas ao tempo de vida do objeto resolvido. 0? A question and answer site for developers to ask and answer questions about various topics. AddSingleton<IGamePlay, GamePlay. That accepted answer in the quote made it sound like. Gerçekten böylesine büyük bir sistemde AddTransient ile mi gitmeli yoksa AddScoped olarak mı bırakmalı gibi sorulara cevap vermek kolay değil. These options dictate how services are managed in. A new instance is created on every controller and every service (can be resource hungry). Typically if you have a library with dependencies you would create an extension method of IServiceCollection that the consumer of you library would call from startup to wire up the default dependencies. AddTransient - Một thể hiện của service sẽ được cung cấp đến mỗi class request nó. However, in standard DI approach, there are three methods to decide registration scope such as AddScoped, AddTransient, and. addscoped vs addtransient vs addsingleton hindiIn this vi. When working in the ConfigureServices in the startup class, we deal with Dependency Inject (DI). #####. GetRequiredService<T>() 取得 Scoped. AddTransient is the equivalent of InstancePerDependency. Transient. NET Core: AddSingleton: With Singleton, an new instance is created when first time the service is requested and the same instance is used for all the request, even for every new request it uses the same reference. Dependency Injection in ASP. In a console application nature, a scope might relate to a specific operation. تفاوت میان AddScoped, AddTransient و AddSingleton همانگونه که قبلا اشاره نمودیم، تفاوت اصلی میان AddSingleton, Addtransient و AddScoped در طول عمر سرویس معرفی شده میباشد. For example, you will have an image store service you could have a service to. services. In the “Create New ASP. Chun, Console 專案一般較少會用 Scoped 生命週期，如果要註冊成 Scoped，使用時必須先 CreateScope() 建立 IServiceScope，再 IServiceScope. Link to short: AddTransient vs AddScoped (or AddSingleton) when setting up your services for DI. Using either the dotnet new command or an IDE new project wizard, create a new . @Damien_The_Unbeliever So yes there are other async calls that I await on within GetFooAsync(). AddSingleton<ICustomerRepository, CustomerRepository>(); If there going to be n number of repository than i have to add everyone of them in startup. The scope of this questions is rather large, but since it seems you are specifically looking for AddScoped information I narrowed the sample down to scoping inside a web application. 1. Use AddScoped . It is similar to having a static object. In this video I clear up the difference between the AddSingleton, AddScoped and AddTransient methodsDependency injection in . NET Core applications: AddTransient, AddScoped, and AddSingleton. Prerequisites. So there is Create. Dependency injection (DI) is a technique for accessing services configured in a central location: Framework-registered services can be injected directly into Razor components. NET Core, you can register dependencies using three different methods AddSingleton, AddTransient, and AddScoped. @Nkosi In the MainWindow I want to instantiate 2 or more pages with their respective dependencies (side menu item click). We can register Scoped service using the AddScoped method as follows:AddTransient vs AddScoped vs AddSingleton 9/15/2023 5:54:16 AM. ASP. Learn the power of AddTransient(), AddScoped() and AddSingleton() If you create your own services and I guess you do because you most likely use a database and that is enough, you read something. Sorted by: 42. I want to know, what is the best way to dispose the all IDisposable object after the request done. AddTransient, AddScoped and AddSingleton Services Differences – Ramil Aliyev 007 Apr 22, 2021 at 6:04 Add a comment 2 Answers Sorted by: 14 As far as I. Sao chép-dán mã này và nhấn vào nút tạo trong chế độ xem và chuyển đổi giữa AddSingleton, AddScoped và AddTransient bạn sẽ nhận được mỗi lần một kết quả khác nhau có thể giúp bạn hiểu lời giải thích này: AddSingleton () - Như tên của nó, phương thức AddSingleton () tạo ra. Also these observations IMHO show that you should use AddSingleton (. In this video we will discuss the differences between AddSingleton(), AddScoped() and AddTransient() methods in ASP.