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Can we use entity framework core with mongodb. cs” and paste in the following code.

It is built on top of our MongoDB . Entities -Version 23. How I created a "Lazy" EFCore-like MongoDB DbContext. exe, our terminal opens up with a prompt to enter a MongoDB connection string. In this article, we covered the basic concepts of NOSQL Databases, When to use them, Introduction to MongoDB, Installing MongoDB locally on your machine as well as working with the cloud variant. To update an entity, first retrieve the entity that you want to update. In addition EF is not supporting MongoDb since mongo db is not using sql, mongo db has his own api/language. MongoDB and aimed to bring the support of MongoDB support for EFCore 3. NET Web API, Docker, RabbitMQ, MassTransit, Grpc, Yarp API Gateway, PostgreSQL, Redis, SQLite, SqlServer, Marten, Entity Framework Core, CQRS, MediatR, DDD, Vertical and Clean Architecture implementation with using latest features of . Firstly, we execute the mongosh. It looks like Entity Framework is adapted only for relational databases, where an helper table between two entities is used as a join entity. Find out how to get started by visiting the Wiki pages. microsoft. In this guide, we show you how to get started with your own free (no credit card required) cluster. This provider enables applications built with EntityFrameworkCore to use MongoDb instances as a backing data store. Create a new . 1. NET Core 8's Minimal API and MongoDB allows for lightweight, scalable, and flexible web services. 1, the only NoSQL database. Net Core 2. com) Mar 10, 2024 · Many users can be cast in many roles. Libraries and Extensions Dec 11, 2023 · 1. Then make the changes to that entity. Top-level scalar aggregations are operations you can perform on a query, such as Count(), Min(), and Max(). sqlclient. – ProgrammingLlama. NET project and use NuGet Package Manager to install Entity Framework 6. mongodb. Get Started With the Entity Framework Core Provider →. Driver”. config file in the project to add a reference to the MongoDB Entity Framework 6 assembly and the connection string. NET Core C# application. Driver. Query data using LINQ, lambda expressions, filters and aggregation pipelines. exe file found in the bin folder of our extracted MongoDB Shell directory. make sure your . To add the . Perform operations on the grouped data to return a single result. Sorting, paging and projecting is made convenient. So I decided to create a boilerplate that would handle more of the Collection initialisation in the background and allow me to simplify my workflow. dotnet add package MongoDB. Jun 6, 2019 · Our app will be a asp. NET/C# Driver 2. The driver includes features such as the following: The MongoDB Entity Framework Core Provider allows you to use Microsoft's Entity Framework Core with MongoDB in your . Mar 01, 2023 | 5 min read. Set the Server, Database, User, and Password connection properties to connect to MongoDB. Apr 7, 2023 · Step-by-step implementation using . GetConnectionString("MongoDb")); builder. If I use aspnet-identity-mongo I cannot use ef code first. Discover about the best practices from the MongoDB Developer Center. Entity Framework Core–DateOnly and TimeOnly (bartwullems. This solution is inspired by Blueshift. The Entity Framework Core Provider supports change tracking, entity-based LINQ operations, and modeling familiar to Entity Framework Core users. Let’s setting up MongoDB Server and ultimately building a ASP. the package MongoDB. NET Core 5. Setting up the Project Aug 13, 2020 · I'm designing a backend app using a GraphQL, MongoDB, . Entities. 1. Net Core. Entityframework Migrations is use to update schema of the tables. NuGet\Install-Package MongoDB. Welcome to the MongoDb Provider for EntityFrameworkCore! MongoDb is a highly popular No-SQL database solution for storing structured, non-relational document data. Wondering if given that the . You can specify the authentication mechanism and source either by using a MongoCredential object or as part of the connection string. net core Mongo driver supports Linq if we could just skip using a Mongoose or EFCore middle layer and just use a Repository pattern on top of the DB layer? While it mostly feels the same as creating contexts in Entity Framework, there are a number of differences still with the biggest being in the creation of contexts. My goal is to maintain clear separation between the domain logic and the database infrastructure. May 27, 2021 · @אוריזבידה . . 0, MongoDB was transactionally consistent at the We shall create a MongoDB context object which will resemble EF Core generated DBContext scaffolding (Entity Framework is an ORM framework for relational DB) Here we shall create a Context class which will help us to create abstraction around Mongo objects. Bsonnamespace needs to be added in order to access BSON-specific types and attributes. 2. MongoClient is thread-safe. Simple data migration framework similar to EntityFramework. asp. Step 2: Define Data Models. NET 8 and C# 12 - aspnetrun/run-aspnetcore-microservices Atlas Documentation Get started using Atlas Server Documentation Learn to use MongoDB Start With Guides Get step-by-step guidance for key Entity Framework; 8. sqlexception: "invalid object name 'dbo. NET CLIdotnet add package MongoDB Nov 21, 2023 · EF Core supports a number of different database providers and can now be used with MongoDB with the help of the MongoDB Provider for Entity Framework Core. Jan 15, 2019 · 1. Jan 28, 2022 · C# applications connected to a MongoDB database use the MongoDB . Add Data Transfer Objects (DTO's) and integrate Automapper inside the Rest Api's. Dec 1, 2020 · On this post we will implement a fictional ASP. Create a new Product Details class Atlas Documentation Get started using Atlas Server Documentation Learn to use MongoDB Start With Learn more about who we Entity Framework Core for MongoDB. Entity Framework Core allows you to work with data in your application without explicitly running database commands. " using vs debugger, query being executed (there 2 columns in table, form primary key): Jan 7, 2022 · There is no official MongoDb provider implementation for EF core at this time, I did not see any mention of MongoDb in the . The Entity Framework Core Provider tracks any queries or data changes you make, and automatically runs them on the database by using the MongoDB Query API. However, you can always use IRepository<TEntity>. Net does things when compared to EF Core. 2 Configure Entity Framework 6. using MongoDB. also i would recommend using sql database to connect with . If you are looking for a ORM that looks and acts like Entity Framework but works with MongoDB, this might be what you want. Modify the App. EntityFrameworkCore NuGet Package Documentation (including Quick Start and Quick Reference guides Apr 20, 2024 · I'm using Entity Framework Core with MongoDB. Feb 4, 2024 · Creating the controller class can be done automatically. paket add MongoDB. For that, we create a new folder called Data and create the new C# class DataContext . Now, let’s move to creating and interacting with our database. As our point of concern, MongoDB can be seamleslly integrated with ASP. blogspot. com/en-us/ef/core/providers/?tabs=dotnet-core-cli Join us this week on MongoDB TV as host Nic Raboy is joined by EP experts James Kovacs from MongoDB, Damien Guard from Intracia, Arthur Vickers and Shay Roja Closed 8 months ago. To navigate the depth Overview. I have a base class, SignInCredentials: public class SignInCredentials(string username, string? password) { public string Username { get; set; } = username; public string? Password { get; protected init; } = password; } Jan 25, 2019 · 3. Jan 31, 2022 · This is valuable whether you're using Visual Studio Code or not. NET Core) and then choose Next. NET Core seamlessly. Jun 10, 2020 · Interact with MongoDB Atlas in an AWS Lambda Function Using C#. NET Core Web API. The May 16, 2024 · In this article, we will discuss how to implement Domain-Driven Design (DDD) architecture in an application that uses MongoDB Entity Framework Core while maintaining clear separation between domain logic and data access. Then we define the entity class that contains the properties that we want to read from the database: xxxxxxxxxx. Net platforms which used ASP. Learn how to use the OData inside the Rest MongoDb for Entity Framework Core. Download the provider by using NuGet , or set up a Dec 23, 2019 · Packages installation. Right–click the Controllers folder, choose, Add, and then click Controller. This version of the Entity Framework Core Provider supports only the following scalar aggregation operations: Count() LongCount() Any(), with or without predicates. However, this is sufficient for an integration test. Yes migrations can also run update/delete/insert part of migration but only because Sql is dependent on schema. This version of the Entity Framework Core Provider does not support other Aug 2, 2021 · I have an ASP. 0 and also tick Open API support to enable swagger on our project. cs. Configuration. when call method on controller, system. Feb 19, 2020 · To make use of Entity Framework Core, the first thing we need is a DataContext. To achieve this, I have structured my solution with separate projects for the domain and infrastructure layers. To begin using Entity Framework Core, create a context class that derives from DBContext. CData. To use SQL Server as the EF Core provider, add the Elsa. Learn about how to use C# with MongoDB in these step-by-step tutorials. May 31, 2024 · The first step is to add the MongoDB Entity Framework Core Provider package to the project either through the UI or the dotnet CLI: xxxxxxxxxx. NET Core and MongoDB. NET application as an object-relational mapper (ORM) to work with data in MongoDB. Driver package. 0 subfolder in the installation directory. Prior to MongoDB version 4. The Entity Framework Core Provider To begin using Entity Framework Core, create a context class that derives from DBContext. To query your data, use the Language-Integrated Query (LINQ) syntax. For this demonstration, we will not plug into an actual database but use the InMemory Database of our application. To save the update to MongoDB, call the SaveChanges() method. Right click on our project and select “Manage NuGet Packages…”. You can then use the Entity Framework Core (EFCore) tools to generate the necessary models and controllers. On this page, you can find a list of MongoDB and Entity Framework features that are not supported by the MongoDB Entity Framework Core Provider. NET Core API. NET Core e-commerce website using MongoDB as database and Redis as a cache service, both running on Docker with Docker Compose so that we can understand how it all works together. Create an ASP. You can use ASP. Jul 23, 2020 · ASP. We built an ASP. When you run the application, the MongoDB Entity Framework Dec 5, 2023 · mongod --dbpath <SchoolDb_data_directory_path>. Mongo Value Generator Selector; Methods. Step 2. (ORM framework for relational DB. Please guide How we can achieve this. Select API Controller with actions using the Entity Framework Microservices on . Add MongoDB Driver Nuget package May 23, 2019 · hope the above code has piqued your interest enough to go deeper into learning how to use mongodb with c# the easy way. Please contact its maintainers for support. Net 8. There is an open-source project called MongoFramework which aims to be. EntityFrameworkCore. Sep 15, 2010 · we have e-commerce site uses web api , entity framework. We shall be using MongoDB as the NoSQL instance. Some useful resources: MongoDB. ValidateObject (entity, new ValidationContext (entity), validateAllProperties: true); You can add the Entity Framework Core Provider to your . EF6. 了解MongoDB和Entity Framework Core 6 MongoDB Mar 16, 2016 · In Entity Framework Core 2. Value Generation. Entity Framework Core. json: "ConnectionStrings": {. Entities --version 23. SQL Server. LINQ allows you to write strongly typed queries using C#-specific keywords and operators. NET 7. Specify that the authentication source is external to MongoDB. c#. Install the latest release of Entity Framework. NET Core to take the maximum advantage of this awesome document based NOSQL Database. By the documentation of the EF: May 3, 2024 · Com a versão de disponibilidade geral, o MongoDB Provider for EF Core oferece aos desenvolvedores os seguintes recursos, com base nos recursos básicos lançados na versão prévia pública: Compatibilidade com Entity Framework Core 8 e . MongoDB provider for entity framework core. I'm a highly motivated Full-Stack C# . net-core. Use the MongoDB Entity Framework Core Provider if you want to build a . cs” and paste in the following code. NET applications to various relational databases for years. Create Rest Api's with Dependency Injection and Repository Layer Pattern. Find For Type; MongoDB EF Oct 12, 2023 · We are pleased to announce the availability of the MongoDB Provider for Entity Framework Core. So I do not know how I can use EF code first + aspnet-identity-mongo + mongodb – The Entity Framework Core Provider simplifies operations on data in MongoDB clusters by mapping the data to . Example of setting-up MongoDB client in ASP. Configure your MongoDB connection in the project’s configuration file. Open it and add the following code: Code Snippet. Step 1. Mar 4, 2024 · See the Entity Framework Core integration document for example. DbContext , so make sure to also add the corresponding using directive. NET AWS. Mar 3, 2022 · However, the good practice is to have only one instance of MongoClient in the application. net framework is updated. Alternatively you'll have to query it separately. In this case, the driver examines the types to determine how to map the constructor Aggregation operations process multiple documents and return computed results. Aug 19, 2015 · Instead of SqlServer database I would like to use Mongodb. NET/C# applications. Don’t forget to check out the Github repo for this project here . MongoDB Atlas is a fully-managed cloud database service that hosts your data on MongoDB clusters. To use the Database-First flow, you will need to have a database already created. config files in the project to include the references of MongoDB Entity Framework- 6 and connect the connection string. var client = new MongoClient(builder. 1 WebAPI that does CRUD operations on a May 29, 2019 · In the next window, name the project and solution and click Create. You can find the full announcement on our blog. To access MongoDB collections as tables you can use automatic schema discovery or write your own schema definitions. NET driver to your Visual Studio Application, in the NuGet Package Manager, search for "MongoDB". Built-in support for One-To-One, One-To-Many and Many-To-Many relationships. May 17, 2024 · I’m implementing a Domain-Driven Design (DDD) architecture in my application using MongoDB with Entity Framework Core. The IDE I use is Visual Studio 2022 Community. B. Net Core stack where performance must be excellent. C# MongoDB . However, I'm running into an issue when trying to use FirstOrDefault. 2 web application with razor page. Then update your Startup class as follows: Mar 29, 2020 · CRUD operation using . Feb 01, 2024. After executing mongosh. Create our Model. Also note that Entities with Composite Primary Keys cannot utilize the IRepository<TEntity, TKey> interface since it requires a single Id property. Feel free to contribute to this repository with code, comments In this guide, you will learn how to configure an application to use the MongoDB Entity Framework Core Provider. 0 WebAPI that does CRUD operations on a MongoDB Instances. NET 6, combining the power of a robust framework with versatile data access technology. Mongo Value Generator Selector. A more detailed article on how to use them can be found here. I went through different tutorials and guides to use mongodb in . Then, inside our new folder create a new file named “Book. Jun 1, 2016 · Add a reference to System. Data. NET 8: totalmente compatível com as versões mais recentes do EF Core e . The provider tracks any changes made to the entity, such as setting properties or adding and removing items from fields with list values. At the next screen, give the project a name, for example, GetStartedWPF, and choose Create. Constructors. Connect Rest Api's with MS-SQL Database with Entity Framework and add migrations. Create ASP. ProgrammingLlama. 0 . But in the case of MongoDB, I have a collection of role IDs stored in the User document for which I need to retrieve these roles. However, migrations can only do the kinds of changes that the EF Core provider supports, and the SQLite provider's capabilities are limited. Create a . 0 May 9, 2022 · To keep this tutorial simple and easy to understand, we're going to create a new console application and work from that. When you call the SaveChanges() method, the Entity Framework Core Provider automatically detects any changes made to your data and runs the necessary commands to update the database by using the MongoDB Query API. How to use mongodb with ef core?Hello Everyone! Welcome to @PRPCoding MongoDb is a highly popular No-SQL database solution for storing structured, non-relational document data. If you generated the . answered Jan 15, 2021 at 8:43. In this tutorial, we'll see how to create a serverless function using the C# programming language and that function will connect to and query MongoDB Atlas in an efficient manner. NET application that uses Entity Framework Core with MongoDB. Migrations updates the database schema to match changes in the data model. EF Core 7 contains many features that help in porting “classic” EF6 applications to use EF7. This class inherits from Microsoft. But I would not recommend you to use absolutely same data structure that you used in EntityFramework as SQL and NoSQL are completely different approaches. NET, garantindo que seus projetos You'll be able to Create Advanced Restful Api's with . 22. } And then use this connection string to set up the dependency injection (DI) of IMongoClient from the MongoDB. NET Core Web API and select target framework as 5. Persistence. In this article, we will learn how to create a repository pattern ie. an "Entity Framework"-like interface for MongoDB. To learn how to set up a new project and install the Entity Framework Core Provider, see the Quick Start. On the start window, choose Create new project. The Entity Framework Core Provider tracks any queries or data changes you make, and Sep 6, 2020 · Summary. MongoDb is schema-less storage. 2 as shown in the red box and select Web Application (Model-View About. bundleproducts1'. Jul 14, 2021 · Create the Application. PS - We will not be using any advanced architectural patterns, but let’s try to keep the code clean. Bson; MongoClient client = new MongoClient ("ATLAS_URI_HERE"); List<string> databases Jul 18, 2022 · Entity Framework has been a great tool to connect your . 0. NET Core as a singleton instance: //Startup. Once that's done, you can start coding using Entity Framework. Set your credentials in the appropriate location. The most straight forward approach according to the article's examples would be: 1. You can find an example using Entity Framework Core and YesSQL in the samples folder on GitHub as well. On this post we will: Scaffold an ASP. See: https://learn. NET core application that utilize mongodb as Database. . To perform aggregation operations, you can use: Aggregation pipelines, which are 16 hours ago · This flow allows you to create a database first, and then generate the necessary models and controllers in your MVC application. Services. data. The DbContext derived class instance represents a database session and is used to query and save instances of your entities. The DBContext class exposes DBSet properties that specify the entities you can interact with while using that context. Driver; using MongoDB. You can use aggregation operations to: Group values from multiple documents together. MongoDB is highly cross platform and can just work with about everything. net core since they are more compatible together – Feb 15, 2023 · Execute the “Install-Package EntityFramework” command in the Package Manager Console by selecting the menu View – Other Windows – Package Manager Console. First, create a folder named “Models”. NET/C# Driver can automatically map a class only if the class has a constructor with no arguments. More information. By default, the . NET Core Web API Application. Getting Started. NET project. This API can serve as a foundation for building more complex applications with MongoDB as the database backend. Part 1 - Entity Framework Core with MongoDB. Basically you can use both EntityFramework and MongoDB driver attributes together. MongoDB C#. We have for example the following entity Models to manage publications Jun 8, 2024 · Explicit private set on the entity properties are superfluous, when Entity Framework is (mostly) capable of mapping via constructors. In my domain project, I have defined a Customer entity and a 0. AddSingleton<IMongoClient>(new MongoClient("connection-string")); Generally, there are several ways you can pass connection data. Okay, to get started we have to prepare our environment, let’s install necessary . Hey everyone. For projects that support , copy this XML node into the project file to reference the package. Implement a catalog service using MongoDB. If I use the standard Identity 2 it does not work with Mongodb. Build the project at this point to ensure everything is working correctly. You&#39;ve learned how to define a model, set up a MongoDB database, create a MongoDB context, and implement CRUD operations in a controller. MongoDb is a highly popular No-SQL database solution for storing structured, non-relational document data. Jul 8, 2024 · MongoDB Atlas Search with . ) Here we shall create a Context class that will help us to create abstraction around the Mongo Database object. See repositories documentation for more. 1 Identity is an API to simplify backend and logical code to manage users, passwords, profile data, roles, claims, tokens, email confirmation, and more. You can create an instance of a connection in two ways: Overview. Analyze data changes over time. NET Core Console application May 23, 2021 · Mongo isn't a relational database, so you'll either want to build an aggregate that does a lookup on the other table (be careful you don't max out the document size by doing so - the lookup pulls the other document into yours as an array). 7) of the driver, and press Install. Net Core and ASP. Dec 30, 2021 · A using statement for the MongoDB. Share Dec 5, 2020 · In this article we have learnt how to use the MongoDB C# Driver to create ASP NET Core API powered by a MongoDB database. NET Core 6 and above but was searching if there be any possible ways to use mongo db with EF Core in this format. In the next window, select . NET Core Web API project Open Visual studio and create a new ASP. This release is compatible with Entity Framework Core 7 and . NET Core/Framework, Web API, C#, Blazor, WPF, HTML/CSS, JavaScript, SQL, Azure DevOps, and GIT. You can use the provider to access and manipulate data from your application without explicitly running database commands. Nov 2, 2023 · In this post, we will try out the MongoDB provider for EF Core by using it to: Map a C# object model to documents in a MongoDB database; Use EF to save some documents to the database; Write LINQ queries to retrieve documents from the database; Make changes to a document and use EF’s change tracking to update the document Nov 8, 2022 · Entity Framework Core (EF Core) 7 is available on NuGet today! EF Core 7 is the successor to EF Core 6, and can be referred to as EF7 for brevity. mongodb-query. NET Core website. Much code will be based on the previous one. net core 7 (the next version) roadmap as of now. SqlServer. MongoDB Repository pattern with example. Execute the following from the CLI to create a new project that is ready to go with the MongoDB driver: Code Snippet. Step 3. MongoDB. Install the following NuGet packages. I started working on a side project with MongoDb and it frustrated me the way MongoDB. cs" file to work with. MongoDB. MongoDB Repository implementation for the No-SQL database in the . NET Core 3. What if we could have the productivity an The Entity Framework Core Provider allows you to use MongoDB with Microsoft's Entity Framework Core as an object-relational mapper. This provider enables applications built with EntityFrameworkCore Specify MONGODB-AWS as the authentication mechanism. Apr 30, 2022 · We will be setting up MongoDB Server and ultimately building a ASP. In a healthcare scenario, create POCO classes like Patient and Treatment in your . EntityEquals 1 day ago · Remark: Instead of using a DateTime type consider using the DateOnly type when you only care about the Date part. EntityFramework. Nov 14, 2023 · For this tutorial you use the Entity Framework Core migrations feature where possible. SqlServer package: dotnet add package Elsa. Open Visual Studio. The driver does a nice job of aligning with the interface of MongoDB Query API. "MongoDb": "mongodb://MyUser:MyPassword@mongodb:27017/MyDb". C# . If we prefer to have a ValidationException thrown at the first validation error, just use ValidateObject, for the whole object: Validator. Make sure you choose the latest version (>=2. 1 WebAPI that demonstrates the integration of MongoDB in ASP. Alter App. nuget packages, you can do it in several ways: using . how to use mongodb provider with entity framework core | C# You can insert, update, or delete data within your application and persist those changes to MongoDB by using the SaveChanges() method. If you want the driver to use a constructor that accepts one or more arguments, you can add the BsonConstructor attribute to the constructor. But I have some issues. 1 we can use Query Types as Yuriy N suggested. dotnet new console -o MongoExample cd MongoExample dotnet add package MongoDB. NET Developer with 2+ years of experience crafting dynamic and user-friendly software. Dec 5, 2020 · Next we need to enter the connection string for the MongoDB database in our appsettings. edited Aug 2, 2021 at 5:13. Because the provider is in active development, some features listed on this page might be considered for future releases based on customer demand. I thrive in environments that promote learning and growth. I want to change the columns Name and same work as we do in Code First Approach with SQL. 1 or . Getting Started . However, as we know repository design patterns fit into any NoSQL or Relational DB requirements May 14, 2024 · Here, I use Entity Framework Core as the ORM to access data. dll, located in the lib -> 4. every aspect of it's api has been documented in the wiki section of the package's github repository. NET 5/6 project as required. had created apicontroller entity called "bundleproduct". Sep 25, 2023 · In this article, we&#39;ve built a complete CRUD API using ASP. The MongoDB C# Driver provides an asynchronous API for interacting with MongoDB servers and databases. Programmatically manage indexes. Full-Stack Expertise: Proficient in ASP. However, there are plans in the current roadmap to expand this with further NoSQL provider offerings. This repository currently only contains a MongoDB provider for EF Core. Search for "WPF," choose WPF App (. With NoSQL you should think more of how your application is going to consume your data and create your Dec 12, 2023 · In this blog post, we’ll explore the process of creating a Web API using Entity Framework Core in . net can be a little difficult to set up sometimes. NET objects. 0 Web API and Entity Framework Core Welcome to our next blog where we are going to learn CRUD operation using Entity Framework Core and . 在本文中,我们将介绍MongoDB和Entity Framework Core 6,并讨论它们之间的集成是否可行。MongoDB是一种流行的开源文档数据库,而Entity Framework Core 6是跨平台的对象关系映射(ORM)框架,支持多种数据库引擎。 阅读更多:MongoDB 教程. NET Blazor for Full-Text Search. NET driver. Getting connected. By using Entity Framework Core-like patterns, you can easily interact with MongoDB collections, enabling efficient data management. What's New in EF Core 8 | Microsoft Learn. The IMongoDbConnection is the core infrastructure that allows connection to MongoDB and is required to instantiate a context. For Visual Studio, it support scaffolding to provide multiple templates page but requires DataContext that relies on Entity Framework, which currently support CosmosDB for Core 3. As such, we encourage people to upgrade existing classic EF applications to use EF7 where possible. AddDbContext<AppDbContext>(options =>. Install a package named “MongoDB. The NuGet Team does not provide support for this client. Specifically, we will focus on generating ObjectId entity identifiers and how to do so while keeping abstraction intact Jul 13, 2024 · Here, on the ValidationContext, we need to pass the property name that we are validating as the MemberName. MongoDB Provider for Entity Framework Core. Entities makes it extremely easy to communicate with mongodb server. May 9, 2024 · Building CRUD operations with . net core 2. NET Core project with the CLI like I did, you'll have a "Program. services. You can manipulate data by using LINQ queries and Entity Framework's entity-based modeling and change tracking. NET. vi im lo ti lo nz nl qr mv lj