entity-framework-core

I have the following functioning LINQ in my .net app public ActionResult Index() { Dictionary<DateTime?, List<Event>> result; result = (from events in db.Events.Include("Activity") where events.IsActive group events by DbFunctions.TruncateTime(events.DateTimeFrom) into dateGroup select new { EventDate = dateGroup.Key, Events = dateGroup.ToList() }).ToDictionary(x => x.EventDate, x => x.Events); return View(result); } When I use this in EF Core, I can't use DbFunctions. How can I rewrite this to make it work in Microsoft.EntityFrameworkCore ? I am using SQLite if that makes a difference. In EF6

I'm running efcore 2.0.1. I have a model: public class BigAwesomeDinosaurWithTeeth { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public Guid Id { get; set; } public ICollection<YummyPunyPrey> YummyPunyPrey { get; set; } } public class YummyPunyPrey { [Key] [DatabaseGenerated(DatabaseGeneratedOption.Identity)] public Guid Id { get; set; } public Guid? BigAwesomeDinosaurWithTeethId { get; set; } [ForeignKey("BigAwesomeDinosaurWithTeethId")] public BigAwesomeDinosaurWithTeeth BigAwesomeDinosaurWithTeeth { get; set; } } I have no fluent api on these two classes. But when I generate

How do I create an Auto increment identity column in Entity Framework Core? Obviously I can do it using fluent API for EF6 for example. Since there is very little EF7 documentation, much of what we know we have to glean from the source or unit tests. According to the following two unit tests in the EF7 source... Here and Here You would configure a property for Identity like this: b.Property(e => e.Id).ForSqlServer().UseIdentity(); And you would configure a property for Sequences like this: ForSqlServer().UseSequence(); The urls have changed due to the aspnet-core reorg, and the methods have

I am using Entity Framework 7 RC1 and I have the entities: public class Post { public Int32 Id { get; set; } public String Title { get; set; } public virtual IList<PostTag> PostsTags { get; set; } } public class Tag { public Int32 Id { get; set; } public String Name { get; set; } public virtual IList<PostTag> PostsTags { get; set; } } public class PostTag { public Int32 PostId { get; set; } public Int32 TagId { get; set; } public virtual Post Post { get; set; } public virtual Tag Tag { get; set; } } The model configuration for these entities is the following: protected override void

In EF Core 2.0 Identity navigation properties are not included by default, so after upgrading, I added them. So for Many-To-Many relationship between User and Role, and One-To-Many relationship between Role and RoleClaim, I added following navigation properties: public class User : IdentityUser { [Required] public string Name { get; set; } public virtual ICollection<IdentityUserRole<string>> Roles { get; set; } } public class Role : IdentityRole { [Required] public string Name { get; set; } public virtual ICollection<IdentityRoleClaim<string>> Claims { get; set;} } Surprisingly it adds an

In the previous versions of EF we were able to alter the dbcontext connection string as below : context.Database.Connection.ConnectionString = "the new connectionstring"; How can we do this with EF7? Thank you I found the solution : https://github.com/aspnet/EntityFramework/wiki/Configuring-a-DbContext#config-from-external-code Context Code public class BloggingContext : DbContext { public BloggingContext(DbContextOptions options) : base(options) { } public DbSet<Blog> Blogs { get; set; } } Application code var optionsBuilder = new DbContextOptionsBuilder(); optionsBuilder.UseSqlServer(@