Atualizar registros no Entity Framework Core (2023)

ONúcleo do Entity Frameworkexecuta a instrução UPDATE no banco de dados para as entidades cujasEntidadeEstadoé Modificado. o DbContextAtualizar()O método update é utilizado para realizar a atualização dos registros no banco de dados.

Atualizar registros no Entity Framework Core (1)

Este tutorial é parte deNúcleo do Entity FrameworkSeries.

  • 1.Introdução ao Entity Framework Core
  • 2.Instalação do Entity Framework Core
  • 3.Abordagem Database-First no Entity Framework Core
  • 4.Classe DbContext no Entity Framework Core
  • 5.Abordagem Code-First no Entity Framework Core
  • 6.Migrações no Entity Framework Core
  • 7.Inserir registros no Entity Framework Core
  • 8.Ler registros no Entity Framework Core
  • 9.Atualizar registros no Entity Framework Core
  • 10.Excluir registros no Entity Framework Core
  • 11.Convenções no Entity Framework Core
  • 12.Configurações no Entity Framework Core
  • 13.API fluente no Entity Framework Core
  • 14.Configurar relacionamento um-para-muitos usando Fluent API no Entity Framework Core
  • 15.Configurar relacionamento um para um usando Fluent API no Entity Framework Core
  • 16.Configurar o relacionamento muitos para muitos usando a API Fluent no Entity Framework Core
  • 17.Executar consultas SQL brutas usando o método FromSqlRaw() no Entity Framework Core
  • 18.

Conteúdo da página

Atualizar registro único

Considere o código abaixo onde estamos atualizando oNome do departamentodo departamento com número de identificação1. Estamos atualizando seu nome paraProjetando.

var dept = new Department(){ Id = 1, Name = "Designing"};context.Update(dept);await context.SaveChangesAsync();

O EF Core é capaz de realizar a atualização aqui porque fornecemos o valor da chave Id (que é '1' neste caso) para a entidade do departamento por meio da qual o rastreamento da entidade é feito.

Relacionado a este tutorial:Atualizar registros usando ADO.NET no aplicativo ASP.NET Core

(Video) How to Update a Row in your Database with Entity Framework Core - Entity Framework Core Tutorial

Caso em que o .Update() irá inserir um novo registro

Se houvernenhum valor de chave válidoentão o núcleo EF irá considerá-lo uma nova entidade e realizar oInserir operaçãono banco de dados.

var dept = new Department(){ Name = "Pesquisa"};context.Update(dept);await context.SaveChangesAsync();

Aqui o.Atualizar()método irá inserir um novoPesquisarregistro na tabela Departamento.

Atualizar registros no Entity Framework Core (2)

Atualizar vários registros

OUpdateRange()método é usado paraAtualizar vários registrosao mesmo tempo. Considere o código abaixo onde estamosatualização de registros de 3 departamentosao mesmo tempo.

var dept1 = new Department(){ Id = 1, Name = "New Designing"};var dept2 = new Department(){ Id = 2, Name = "New Research"};var dept3 = new Department(){ Id = 3, Nome = "Novo RH"}; List modificadoDept = new List() { dept1, dept2, dept3 };context.UpdateRange(modifiedDept);await context.SaveChangesAsync();

Atualizar registros no Entity Framework Core (3)

Cobri a vinculação de modelo muito avançada em meu artigo chamadoConceitos avançados de associação de modelo no ASP.NET Core

O Entity Framework Core também pode ser usado para atualizar registros relacionados. Veja o código abaixo que atualiza o Funcionário e o Departamento ao mesmo tempo. ONome do departamentoé atualizado para 'Admin_1'. Este Departamento é o respetivo registo da Entidade Colaboradora.

(Video) Borrado y Actualizaciones Masivas - Borra Miles de Registros - Nuevo de Entity Framework Core 7

var dept = new Department(){ Id = 5, Name = "Admin_1"};var emp = new Employee(){ Id = 1, Name = "Matt_1", Designação = "Head_1", Departamento = dept};contexto. Update(emp);await context.SaveChangesAsync();

Quando este código é executado, o ID do funcionário 1 obtém suas informações alteradas para:

  • 1. O nome foi alterado para “Matt_1”.
  • 2. A designação é alterada para “Head_1”.

O departamento relacionado também é alterado. Este nome de departamento de funcionários é alterado para “Admin_1”.

Operações CRUD principais do Entity Framework - ATUALIZAR REGISTROS

Vamos agora realizar a tarefa Atualizar Registros no recurso CRUD OPERATIONS que estamos construindo no aplicativo. Então primeiro adicione oAtualizarmétodos de ação noDepartamentoController.csarquivo. O código é mostrado abaixo.

usando EFCoreExample.Models;usando Microsoft.AspNetCore.Mvc;usando Microsoft.EntityFrameworkCore;namespace EFCoreExample.Controllers{ public class DepartmentController : Controller { private CompanyContext context; public DepartmentController(CompanyContext cc) { context = cc; } public async Task Update(int id) { Department dept = await context.Department.Where(e => e.Id == id).FirstOrDefaultAsync(); return Visualização(depto); } [HttpPost] public async Task Update(Department dept) { context.Update(dept); await context.SaveChangesAsync(); return RedirectToAction("Índice"); } //... }}

As 2 ações são adicionadas, que são as versões HTTP GET e HTTP POST. Na versão GET estamos obtendo o id do departamento no parâmetro do método e então estamos buscando o registro do departamento correspondente no banco de dados. Este registro é retornado para a visualização de atualização onde será mostrado ao usuário em um formulário.

O usuário atualizará os valores do registro do departamento e enviará o formulário. A versão POST da ação Update será então chamada e receberá o valor atualizado do departamento em seu parâmetro através da técnica Model Binding. Ele então chama oAtualizar()método e salva o registro no banco de dados usando o DbContextSaveChangesAsync()método.

Em seguida, adicione um novo arquivo de exibição de navalha chamadoUpdate.cshtmldentro deVisualizações/Departamentopasta com o seguinte código.

@{ ViewData["Title"] = "Departamento de atualização";}@model Department

Departamento de atualização

Voltar

A imagem abaixo mostra o formulário do departamento de atualização.

Atualizar registros no Entity Framework Core (4)

(Video) MiniCurso Entity Framework Core - Atualizando dados

Também precisaremos vincular o recurso de atualização do arquivo de exibição de índice. Lembre-se que oIndex.cshtmlview mostra todos os registros do departamento em uma tabela. Construímos esse recurso no tutorial anterior –Ler registros no Entity Framework Core. Portanto, atualizamos a exibição do índice adicionando uma coluna de atualização com um link de âncora que chamará a ação de atualização no controlador de departamento, passando o ID do departamento em sua rota.

A coluna adicionada é mostrada na cor destacada abaixo.

@{ViewData["Title"] = "All Departments";}@model IEnumerable

Todos os departamentos

Criar@foreach (Departamento dept em Modelo){}
IDNomeAtualizar
@dept.Id@dept.Name Atualizar

Execute o aplicativo e visite o link do controlador de departamento –https://localhost:7018/Departamentoonde são mostrados os cadastros dos departamentos junto com o botão atualizar. Clique em um botão de atualização para atualizar o registro do departamento correspondente. Verifique a imagem abaixo.

Atualizar registros no Entity Framework Core (5)

Vamos fazer o mesmo com oEmployeeController.csadicionando métodos de ação Update a ele.

usando EFCoreExample.Models;usando Microsoft.AspNetCore.Mvc;usando Microsoft.AspNetCore.Mvc.Rendering;usando Microsoft.EntityFrameworkCore;namespace EFCoreExample.Controllers{ public class EmployeeController : Controller { private CompanyContext context; public EmployeeController(CompanyContext cc) { contexto = cc; } public async Task Update(int id) { Employee emp = await context.Employee.Where(e => e.Id == id).FirstOrDefaultAsync(); List dept = new List(); dept = context.Department.Select(x => new SelectListItem { Text = x.Name, Value = x.Id.ToString() }).ToList(); ViewBag.Departamento = departamento; return View(emp); } [HttpPost] public async Task Update(Empregado emp) { context.Update(emp); await context.SaveChangesAsync(); return RedirectToAction("Índice"); } //... }}

Semelhante à ação de atualização do controlador de departamento, estamos fazendo a mesma coisa aqui, buscando o registro do funcionário no banco de dados cujo id é fornecido no parâmetro do método.

Também estamos buscando todos os departamentos e adicionando-os aoListaobjeto e, em seguida, para um ViewBag. Os departamentos serão mostrados no controle de seleção html na visualização.

List dept = new List();dept = context.Department.Select(x => new SelectListItem { Text = x.Name, Value = x.Id.ToString() }).ToList(); ViewBag.Departamento = departamento;

A seguir, adicione oUpdate.cshtmlrazor view arquivo dentro doVisualizações/funcionáriopasta com o seguinte it. A visualização mostrará o cadastro do funcionário em um formulário para que o usuário atualize seus campos.

@{ViewData["Title"] = "Atualizar Funcionário";}@model Funcionário

Criar Funcionário

Voltar
(Video) Entity Framework actualizar registro | Entity Framework 6 | Programando en ASP.NET MVC 5

O formulário de atualização do funcionário terá a aparência mostrada na imagem abaixo.

Atualizar registros no Entity Framework Core (6)

A última coisa a fazer é adicionar os links Update à visualização Index do controller Employee. O código a adicionar é mostrado em destaque abaixo.

@{ViewData["Title"] = "All Employees";}@model IEnumerable

Todos os funcionários

Criar@foreach (Funcionário emp no modelo){}
IDNomeDesignação DepartamentoAtualização
@emp.Id @emp.Name@emp.Designation@emp.Department.Name Atualizar

Execute o aplicativo e visite o link do controlador do funcionário –https://localhost:7018/Funcionário. Aqui, veja os links de atualização de todos os funcionários, clique em qualquer um e atualize o funcionário.

Atualizar registros no Entity Framework Core (7)

Baixe os códigos-fonte:

DOWNLOAD

(Video) Saving data into entity framework core | Insert | Update | Delete

Conclusão

Neste tutorial Entity Framework Core Update Records, abordamos como atualizar um registro, vários registros e registros relacionados. Também criamos o recurso Update Records CRUD Operations no final. Próximo tutorial será emExcluir registros no Entity Framework Core.

FAQs

How to add Entity Framework in .NET Core 6? ›

Sample application
  1. Create a solution.
  2. Add > New Project > Web > ASP.NET Core Web Application. ...
  3. Add > New Project > Windows Desktop > Class Library (.NET Framework)
  4. In Package Manager Console (PMC) for both projects, run the command Install-Package Entityframework .
Apr 10, 2023

How to upgrade Entity Framework 5 to 6? ›

You need to upgrade to the new Entity Framework 6 runtime.
  1. Right-click on your project and select Manage NuGet Packages...
  2. Under the Online tab select EntityFramework and click Install. Note. If a previous version of the EntityFramework NuGet package was installed this will upgrade it to EF6.
Oct 14, 2020

How to update DbContext class in Entity Framework Core? ›

This can be achieved in several ways: setting the EntityState for the entity explicitly; using the DbContext. Update method (which is new in EF Core); using the DbContext. Attach method and then "walking the object graph" to set the state of individual properties within the graph explicitly.

How to update Entity Framework Core version? ›

Update the tools

Use dotnet tool update --global dotnet-ef to update the global tools to the latest available version. If you have the tools installed locally in your project use dotnet tool update dotnet-ef . Install a specific version by appending --version <VERSION> to your command.

How to install Entity Framework in .NET core? ›

Visual Studio NuGet Package Manager Dialog
  1. From the Visual Studio menu, select Project > Manage NuGet Packages.
  2. Click on the Browse or the Updates tab.
  3. To install or update the SQL Server provider, select the Microsoft. EntityFrameworkCore. SqlServer package, and confirm.
Mar 23, 2023

How to create Entity Framework Core? ›

Introduction
  1. Step 1: Create an ASP.NET MVC application.
  2. Step 2: Add a Model.
  3. Step 3: Set up DbContext.
  4. Step 4: Set up Data Connection.
  5. Step 4.5: Migrate and Update database (this step is not necessary for . Net Framework MVC)
  6. Step 5: Create Controller to access data from entity framework.
  7. Step 6: Run the App and Test.
Dec 16, 2022

Which version of Entity Framework should I use for .NET 6? ›

EF Core 6.0 will align with . NET 6 as a long-term support (LTS) release.

What is the difference between EF5 and EF6? ›

EF5 is built into the core of . NET 4.5, whereas EF6 has been shifted out, and is open source. This means that you must add the new EF6 assemblies to all of the relevant projects in the solution, in particular the entry project. This means that you must remove assembly System.

What is the difference between Entity Framework Core 5 and 6? ›

EF Core 6.0 performance is now 70% faster on the industry-standard TechEmpower Fortunes benchmark, compared to 5.0. This is the full-stack perf improvement, including improvements in the benchmark code, the . NET runtime, etc.

How to add DbContext in .NET core? ›

To have a usable Entity Framework DBContext, we need to change the configuration of the application. We will need to add a connection string so that our DBContext knows which server to go to and which database to query. We will put the connection string in a JSON configuration file.

How do I add Entity Framework Core to an existing project? ›

Visual Studio Package Manager
  1. Go to Tools » NuGet Package Manager » Manage NuGet Packages For Solution.
  2. Ensure that Browse is selected and type "entityframeworkcore" into the search box.
  3. Click on the provider that you want to install. ...
  4. Check the project that you want to install the package into, then click Install.
Feb 20, 2023

How to update Entity Framework after database change? ›

Right-click anywhere on the design surface, and select Update Model from Database. In the Update Wizard, select the Refresh tab and then select Tables > dbo > Student. Click Finish.

What is the latest version of EF Core? ›

EF Core 7.0 (EF7) was released in November 2022.

What is the latest version of Entity Framework 6? ›

Entity Framework
Original author(s)Microsoft
Developer(s).NET Foundation
Initial releaseAugust 11, 2008
Stable releaseEntity Framework 6: v6.4.4 Entity Framework Core: v7.0.0 / Entity Framework Core: November 8, 2022
Repositorygithub.com/dotnet/ef6 github.com/dotnet/efcore
7 more rows

Is Entity Framework 6 still supported? ›

Versions 6.0, 6.1, 6.2, and 6.3 are no longer supported. Although Entity Framework 6. x is still supported, it is no longer being developed and will only receive fixes for security issues. The Entity Framework 6.

Is Entity Framework same as .NET core? ›

Entity Framework Core is an object-database mapper (and a successor to Entity Framework). . NET Core is a cross-platform software framework developed by Microsoft (and a successor to . NET Framework).

How to use Entity Framework Core in .NET core? ›

How to use Entity Framework Core in ASP.NET Core
  1. Creating a New ASP.NET Core Web Project.
  2. Tools and NuGet Dependencies.
  3. Designing a Database with EF Core and C#
  4. Services Collection and Configuring Our DbContext.
  5. EF Core Migrations and Databases.
  6. Using a DbContext in a Razor Page.
  7. Creating an ASP.NET Core Razor Form.
Feb 7, 2023

What is the difference between Entity Framework and Entity Framework Core? ›

Entity Framework Core is the new version of Entity Framework after EF 6. x. It is open-source, lightweight, extensible and a cross-platform version of Entity Framework data access technology. Entity Framework is an Object/Relational Mapping (O/RM) framework.

What are the three types of Entity Framework? ›

There are three approaches to model your entities in Entity Framework: Code First, Model First, and Database First.

Is Entity Framework Core free? ›

All features in Entity Framework Plus are FREE (even for commercial use).

What is the basic Entity Framework Core? ›

Entity Framework (EF) Core is a lightweight, extensible, open source and cross-platform version of the popular Entity Framework data access technology. EF Core can serve as an object-relational mapper (O/RM), which: Enables . NET developers to work with a database using .

What is the difference between .NET and Entity Framework? ›

Some of the key differences between ADO.NET and the Entity Framework are as below: Performance: ADO.NET is much faster compared to the Entity Framework. Because ADO.NET always establishes the connection directly to the database. That's why it provides much better performance compared to the Entity Framework.

Is Net 6 a core or framework? ›

Better performance: . NET 6 is the fastest full stack web framework, which lowers compute costs if you're running in the cloud. Ultimate productivity: . NET 6 and Visual Studio 2022 provide hot reload, new git tooling, intelligent code editing, robust diagnostics and testing tools, and better team collaboration.

Should I use EF6 or EF Core? ›

Keep using EF6 if the data access code is stable and not likely to evolve or need new features. Port to EF Core if the data access code is evolving or if the app needs new features only available in EF Core. Porting to EF Core is also often done for performance.

Is EF core faster than EF6? ›

Note that for a single row, EF Core is slower than EF6 unless using context pooling; this could be the cost of setting up all the scoped services for each instance (which isn't done when context pooling is on). For multiple rows, EF Core batches and EF6 doesn't, so EF Core quickly becomes much faster.

Is Dapper better than Entity Framework? ›

Dapper is generally faster than EF Core because it uses raw SQL queries and has less overhead. However, EF Core provides caching and other performance optimizations that can sometimes make it faster. Dapper is simpler than EF Core because it uses raw SQL queries and has fewer features.

What are the two types of Entity Framework? ›

There are two types of Entities in Entity Framework: POCO Entities and Dynamic Proxy Entities.

Which is better LINQ or Entity Framework? ›

First off, if you're starting a new project, use Entity Framework ("EF") instead of Linq to SQL because it now generates far better SQL (more like Linq to SQL does) and is easier to maintain ("L2S").

What is the difference between LINQ and Entity Framework Core? ›

LINQ to SQL allow you to query and modify SQL Server database by using LINQ syntax. Entity framework is a great ORM shipped by Microsoft which allow you to query and modify RDBMS like SQL Server, Oracle, DB2 and MySQL etc. by using LINQ syntax.

Is DbContext singleton or scoped? ›

The DbContext is a singleton class that represents the gateway to all data access, and therefore should not be instantiated more than once.

What is the difference between OnModelCreating and OnConfiguring? ›

The OnConfiguring() method allows us to select and configure the data source to be used with a context using DbContextOptionsBuilder . Learn how to configure a DbContext class at here. The OnModelCreating() method allows us to configure the model using ModelBuilder Fluent API.

Why DbContext is not thread safe? ›

This is usually caused by different threads using the same instance of DbContext, however instance members are not guaranteed to be thread safe. When concurrent access goes undetected, it can result in undefined behavior, application crashes and data corruption.

How to create DbContext in Entity Framework Core database first? ›

Entity Framework Core Database First Tutorial
  1. Create Northwind Database. ...
  2. Create New . ...
  3. Install Nuget Packages. ...
  4. Create Models using Scaffold-DbContext. ...
  5. Configure Data Context. ...
  6. Registering DBContext with Dependency Injection. ...
  7. Scaffold-DbContext options. ...
  8. Update existing models.
Mar 12, 2021

How to initialize database Entity Framework Core? ›

Database Initialisation Strategies for Entity Framework Core
  1. public class DbInitialiser { private readonly ApplicationDbContext _context; public DbInitialiser(ApplicationDbContext context) { _context = context; } public void Run() { // TODO: Add initialisation logic. } } ...
  2. using var scope = app.
Mar 15, 2022

How to update a disconnected entity to the database in EF Core? ›

Entity Framework Core introduced the DbContext. Update() method which attaches the specified entity to a context and sets its EntityState to Modified. Alternatively, you can also use the DbSet. Update() method ( context.

How to update Entity Framework model from database code first? ›

Project -> Add New Item…
  1. Project -> Add New Item…
  2. Select Data from the left menu and then ADO.NET Entity Data Model.
  3. Enter BloggingContext as the name and click OK.
  4. This launches the Entity Data Model Wizard.
  5. Select Code First from Database and click Next.
Mar 9, 2022

What is the replacement of Entity Framework? ›

Entity Framework alternatives and similar packages
  • TypeORM. 9.9 9.6 Entity Framework VS TypeORM. ...
  • SqlSugar. 9.2 9.9 Entity Framework VS SqlSugar. ...
  • FreeSql. 8.9 0.0 Entity Framework VS FreeSql. ...
  • FluentMigrator. 8.5 3.7 L3 Entity Framework VS FluentMigrator. ...
  • EFCore.BulkExtensions. ...
  • NHibernate. ...
  • LINQ to DB. ...
  • PetaPoco.
5 days ago

Does ef Core 5 require .NET 5? ›

Entity Framework Core 5.0

NET Standard 2.1. This means: EF Core 5.0 runs on . NET Core 3.1; it does not require .

Is EF6 deprecated? ›

Currently EF Core is the main focus of development for the Entity Framework Team at Microsoft. This means there are no new major features planned for EF6. However EF6 is still maintained as an open source project and a supported Microsoft product.

What databases does Entity Framework Core 5 support? ›

EF Core supports several database providers, including:
  • Microsoft SQL Server.
  • Microsoft SQL Server Compact Edition.
  • SQLite.
  • MySQL.
  • PostgreSQL.
  • In-memory databases and more.
Feb 11, 2023

Can I use entity framework 6 not core in .NET core? ›

To use Entity Framework 6, your project has to compile against . NET Framework, as Entity Framework 6 doesn't support . NET Core. If you need cross-platform features you will need to upgrade to Entity Framework Core.

Why not to use entity framework? ›

The most common issue usually is on the programmer's side: firing the SQL execution on middle-query time, when it's not supposed to get the data yet and the query results being extensive (too many records) without the programmer even thinking about it.

Why .NET core is better than .NET framework? ›

NET Core is faster than . NET Framework because the architecture of . NET Core is written or restructured from scratch to make it a modular, lightweight, fast, and cross-platform Framework. The Applications require technologies like workflow, webforms or WCF that are not present in .

How to use Entity Framework Core in .NET Core? ›

How to use Entity Framework Core in ASP.NET Core
  1. Creating a New ASP.NET Core Web Project.
  2. Tools and NuGet Dependencies.
  3. Designing a Database with EF Core and C#
  4. Services Collection and Configuring Our DbContext.
  5. EF Core Migrations and Databases.
  6. Using a DbContext in a Razor Page.
  7. Creating an ASP.NET Core Razor Form.
Feb 7, 2023

What version of Entity Framework for .NET 6? ›

EF Core 6.0 is the next release after EF Core 5.0 and is currently scheduled for release in November 2021 at the same time as . NET 6.

How to add ado net entity data model in asp net core 6? ›

Create the ADO.NET Entity Data Model

To do so, follow these steps: Right-click on your project in the Solution Explorer window and select the menu option Add -> New Item. In the Add New Item dialog, select the Data category. Select the ADO.NET Entity Data Model template, give the Entity Data Model the name Northwind.

Does Entity Framework work with .NET Core? ›

Entity Framework is an Object/Relational Mapping (O/RM) framework. It is an enhancement to ADO.NET that gives developers an automated mechanism for accessing & storing the data in the database. EF Core is intended to be used with .NET Core applications.

What is the difference between Entity Framework and .NET core? ›

Entity Framework Core is an object-database mapper (and a successor to Entity Framework). . NET Core is a cross-platform software framework developed by Microsoft (and a successor to . NET Framework).

What is the difference between Entity Framework Core and Entity Framework 6? ›

Keep using EF6 if the data access code is stable and not likely to evolve or need new features. Port to EF Core if the data access code is evolving or if the app needs new features only available in EF Core. Porting to EF Core is also often done for performance.

What is the latest Entity Framework Core? ›

EF Core 7.0 (EF7) was released in November 2022. You can run and debug into the samples by downloading the sample code from GitHub. Each section links to the source code specific to that section.

Is ADO net still used? ›

Yes it is still used in some situations. At my day job we have a couple cases where we use SQL Bulk Copy which requires good ole' Connections and Commands. Additionally, there are some new datatypes in SQL 2008 R2 (Geography, Geometry, Hierarchy) that don't have support in Entity Framework.

How to connect asp net core to database? ›

How to Connect to MySQL from . NET Core
  1. Install MySqlConnector. First, install the MySqlConnector NuGet package. ...
  2. Connection String. A typical connection string for MySQL is: Server=YOURSERVER;User ID=YOURUSERID;Password=YOURPASSWORD;Database=YOURDATABASE. ...
  3. Configure Service (ASP.NET Core) ...
  4. Open and Use the Connection.

What is the difference between Entity Framework and ADO net? ›

Some of the key differences between ADO.NET and the Entity Framework are as below: Performance: ADO.NET is much faster compared to the Entity Framework. Because ADO.NET always establishes the connection directly to the database. That's why it provides much better performance compared to the Entity Framework.

Is Entity Framework still relevant? ›

Entity Framework 1 and 4 are considered legacy and should not be used. The first version of Entity Framework and Entity Framework 4 are fully contained in the . NET Framework.

Should I use Entity Framework or not? ›

Conclusion. EF should be considered a great ORM framework which allows faster development, easier and quicker operations to the DB, as long as you are careful and know how it works in order to avoid certain mistakes and create performance problems.

What is DbContext in .NET Core? ›

A DbContext instance represents a session with the database and can be used to query and save instances of your entities. DbContext is a combination of the Unit Of Work and Repository patterns.

Videos

1. Update - Update Record to Database | Part - 8 | Entity Framework Core 2.0 (EFC2) using ASP.Net Core
(Tutorials Team)
2. 17 - Entity Framework: Actualizar Registros/Llamado de Vistas Parciales [NetCore]
(CodeStack)
3. Visual Studio 2022 - Missing ADO NET Entity Data Model
(Vis Dotnet)
4. Unable to update the EntitySet because it has a DefiningQuery
(Infinetsoft solutions)
5. 13- Leer, Crear, Actualizar y Borrar data (CRUD) | Entity Framework Core 2.0
(gavilanch2)
6. 11 Instrucción Update en EntityFrameworkCore
(cacmis)

References

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