- Entity Framework Core For Mac Os X 10 11 Download Free
- Entity Framework Core Mac
- Entity Framework Core For Mac Os X 10 11
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In this tutorial, you create a .NET Core console app that performs data access against a SQLite database using Entity Framework Core.
.NET Core 3.1 downloads for Linux, macOS, and Windows.NET Core is a cross-platform version of.NET, for building apps that run on Linux, macOS, and Windows. Installing Entity Framework Core.; 4 minutes to read +10; In this article Prerequisites. EF Core is a.NET Standard 2.0 library. So EF Core requires a.NET implementation that supports.NET Standard 2.0 to run. EF Core can also be referenced by other.NET Standard 2.0 libraries. For example, you can use EF Core to develop apps that.
Iodbc for mac sierra. Disk tools for mac os x. You can follow the tutorial by using Visual Studio on Windows, or by using the .NET Core CLI on Windows, macOS, or Linux.
View this article's sample on GitHub.
Prerequisites
Install the following software:
- .NET Core SDK.
- Visual Studio 2019 version 16.3 or later with this workload:
- .NET Core cross-platform development (under Other Toolsets)
Create a new project
- Open Visual Studio
- Click Create a new project
- Select Console App (.NET Core) with the C# tag and click Next
- Enter EFGetStarted for the name and click Create
Install Entity Framework Core
To install EF Core, you install the package for the EF Core database provider(s) you want to target. This tutorial uses SQLite because it runs on all platforms that .NET Core supports. For a list of available providers, see Database Providers.
- Tools > NuGet Package Manager > Package Manager Console
- Run the following commands:
Entity Framework Core For Mac Os X 10 11 Download Free
Tip: You can also install packages by right-clicking on the project and selecting Manage NuGet Packages
Create the model
Define a context class and entity classes that make up the model.
- In the project directory, create Model.cs with the following code
- Right-click on the project and select Add > Class
- Enter Model.cs as the name and click Add
- Replace the contents of the file with the following code
EF Core can also reverse engineer a model from an existing database.
Tip: This application intentionally keeps things simple for clarity. Connection strings should not be stored in the code for production applications. You may also want to split each C# class into its own file.
Create the database
The following steps use migrations to create a database.
- Run the following commands:This installs dotnet ef and the design package which is required to run the command on a project. The
migrations
command scaffolds a migration to create the initial set of tables for the model. Thedatabase update
command creates the database and applies the new migration to it.
Entity Framework Core Mac
- Run the following commands in Package Manager Console (PMC)This installs the PMC tools for EF Core. The
Add-Migration
command scaffolds a migration to create the initial set of tables for the model. TheUpdate-Database
command creates the database and applies the new migration to it.
Create, read, update & delete
- Open Program.cs and replace the contents with the following code:
Run the app
Visual Studio uses an inconsistent working directory when running .NET Core console apps. (see dotnet/project-system#3619) This results in an exception being thrown: no such table: Blogs. To update the working directory:
Entity Framework Core For Mac Os X 10 11
- Right-click on the project and select Edit Project File
- Just below the TargetFramework property, add the following:
- Save the file
Now you can run the app: Quicktime for mac sierra download windows 10.
- Debug > Start Without Debugging
Next steps
- Follow the ASP.NET Core Tutorial to use EF Core in a web app
- Learn more about LINQ query expressions
- Configure your model to specify things like required and maximum length
- Use Migrations to update the database schema after changing your model
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), enabling .NET developers to work with a database using .NET objects, and eliminating the need for most of the data-access code they usually need to write.
EF Core supports many database engines, see Database Providers for details.
The Model
With EF Core, data access is performed using a model. A model is made up of entity classes and a context object that represents a session with the database, allowing you to query and save data. See Creating a Model to learn more.
You can generate a model from an existing database, hand code a model to match your database, or use EF Migrations to create a database from your model, and then evolve it as your model changes over time.
Querying
Instances of your entity classes are retrieved from the database using Language Integrated Query (LINQ). See Querying Data to learn more.
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Saving Data
Data is created, deleted, and modified in the database using instances of your entity classes. See Saving Data to learn more.
Next steps
Western digital drivers for mac os x. For introductory tutorials, see Getting Started with Entity Framework Core.