The first preview of Entity Framework Core (EF Core) 8 is available on NuGet today!
EF Core 8, or just EF8, is the successor to EF Core 7, and is scheduled for release in November 2023, at the same time as .NET 8.
EF8 currently targets .NET 6. This will likely be updated to .NET 8 as we near release.
EF8 will align with .NET 8 as a long-term support (LTS) release. See the .NET support policy for more information.
Reintroducing ASP.NET Core 1.0 and .NET Core 1.0
ASP.NET 5 is now ASP.NET Core 1.0.
.NET Core 5 is now .NET Core 1.0.
Entity Framework 7 is now Entity Framework Core 1.0 or EF Core 1.0 colloquially.
· EF 7.0.0 will not become the “official” version of Entity Framework.
· EF6 will continue to be the official version.
· EF6 will continue to be what’s delivered when you install entityframework via Nuget.
· Your apps that use EF6 will not automatically update to EF7!
Migrating Entity Framework 6 projects to Entity Framework Core 1 (Entity Framework 7)
Today we are releasing the final version of Entity Framework Core 2.0, alongside .NET Core 2.0 and ASP.NET Core 2.0.
Entity Framework (EF) Core is the lightweight, extensible, and cross-platform version of Entity Framework, the popular Object/Relational Mapping (O/RM) framework for .NET.
using Microsoft.Data.Entity;
using Microsoft.Data.Entity.Metadata;
using System.Collections.Generic;
using System.Linq;
namespace UsingEF7WithSQLite
{
public class Blog
{
public int BlogId { get; set; }
public string Url { get; set; }
public List<Post> Posts { get; set; }
}
public class Post
{
public int PostId { get; set; }
public string Title { get; set; }
public string Content { get; set; }
public int BlogId { get; set; }
public Blog Blog { get; set; }
}
} PM> Install-Package EntityFramework.SQLite –Pre
namespace UsingEF7SQLiteProvider
{
public class BloggingContext : DbContext
{
public DbSet<Blog> Blogs { get; set; }
public DbSet<Post> Posts { get; set; }
protected override void OnConfiguring(DbContextOptions builder)
{
builder.UseSQLite(@"Data Source=.\BloggingDatabae.db");
}
protected override void OnModelCreating(ModelBuilder builder)
{
builder.Entity<Blog>()
.OneToMany(b => b.Posts, p => p.Blog)
.ForeignKey(p => p.BlogId);
// The EF7 SQLite provider currently doesn't support generated values
// so setting the keys to be generated from developer code
builder.Entity<Blog>()
.Property(b => b.BlogId)
.GenerateValueOnAdd(false);
builder.Entity<Post>()
.Property(b => b.BlogId)
.GenerateValueOnAdd(false);
}
}
} Install-Package EntityFramework.Commands -Pre
Add-Migration MyFirstMigration Apply-Migration
using (var db = new BloggingContext())
{
db.Database.AsMigrationsEnabled().ApplyMigrations();
} using (var db = new Models.BloggingContext())
{
db.Blogs.Add(new Models.Blog { Url = "https://www.dntips.ir" });
db.SaveChanges();
foreach (var item in db.Blogs)
{
Console.WriteLine(item.Url);
}
}
Console.ReadLine(); 
Entity Framework Core (EF Core) is the latest version of Microsoft's recommended data access technology for applications based on the .NET Core framework. It has been designed to be lightweight, extensible and to support cross platform development.
The fourth preview of Entity Framework Core (EF Core) 8 is available on NuGet today!
Basic information
EF Core 8, or just EF8, is the successor to EF Core 7, and is scheduled for release in November 2023, at the same time as .NET 8.
EF8 previews currently target .NET 6, and can therefore be used with either .NET 6 (LTS) or .NET 7. This will likely be updated to .NET 8 as we near release.
EF8 will align with .NET 8 as a long-term support (LTS) release. See the .NET support policy for more information.
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