entity-framework-core

问题 I'm using Visual Studio for Mac 2017 on macOS Sierra with Microsoft EntityframeworkCore and I'm trying to connect to a remote MS SQL Server. If I start the project in Visual Studio on my Windows machine, everything works fine. But the same project on my Mac tells me "A call to SSPI failed" when I try to get data from the SQL Server. I can connect to the SQL Server using the "Oracle SQL Developer" tool on my Mac. So the issue is somewhere in Visual Studio. The connection string: Server

问题 I am trying to implement querying to Sql Server via EF Core and OData(7.1.0). Action method looks like follows: [HttpGet] public IEnumerable<UserInfoDto> Get(ODataQueryOptions ops) { return this.service.GetUserInfos(ops); } Service code: public List<UserInfoDto> GetUserInfos(ODataQueryOptions ops) { using (var context = new EFContext()) { var query = context.Users.Join(context.Customers, x => x.CustomerId, y => y.Id, (x, y) => new UserInfoDto { Id = x.Id, Name = x.Name, Age = x.Age,

问题 For one-to-one relationship in Entity Framework core (rc1 or rc2) based on this tutorial http://ef.readthedocs.io/en/latest/modeling/relationships.html#one-to-one, I use this code: public class MyContext : DbContext { public DbSet<Blog> Blogs { get; set; } public DbSet<BlogImage> BlogImages { get; set; } protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<Blog>() .HasOne(p => p.BlogImage) .WithOne(i => i.Blog) .HasForeignKey<BlogImage>(b => b

问题 We have just done a merge to EF7 from EF6, since we use ASP.Net 5 in our application. The project is just started, so we won't run into issues with releasing code dependent on beta libraries. We have run into an issue with cascading inserts. By cascading inserts I mean that a collection of child entities is inserted / updated with the parent. It seems to be dependent on the order of operations in a surprising way. Given the following definitions: public class ParentEntity { public int Id {

问题 I see that EF Core 2 has EF.Functions property EF Core 2.0 Announcement which can be used by EF Core or providers to define methods that map to database functions or operators so that those can be invoked in LINQ queries . It included LIKE method that gets sent to the database. But I need a different method, SOUNDEX() that is not included. How do I write such a method that passes the function to the database the way DbFunction attribute did in EF6? Or I need to wait for MS to implement it?

问题 In previous versions of Entity Framework code-first migrations could be controlled programmatically with the DbMigrator class (e.g. check for and apply available migrations). Does that class still exist somewhere or is there a functional replacement? I found a post on an early RC version that indicated a substitute but that too seems to be missing from Core 1.0. I can control my migrations through CLI without issue but I think an in-code solution for custom tooling scenarios is going to be

问题 This question already has an answer here : Entity Framework Core does not contain a definition for 'Include' (1 answer) Closed last year . I am using EntityFramework Core 1.1.0. I can query a table and load entities, but the instructions from Microsoft indicates if I want to load relational data, I should use the .Include() function: https://docs.microsoft.com/en-us/ef/core/querying/related-data You can use the Include method to specify related data to be included in query results. In the

问题 It's my first time using asp 5\core1 and i'm having problem setting a entity framework dbcontext I have one class library with my object public class Utilizador { public Utilizador() { } public int id { get; set; } } Then i have a Web Api project with a reference to my class and a context public class Context : DbContext { public Context(DbContextOptions<Context> options) : base(options) { } public DbSet<Utilizador> Utilizadores { get; set; } } My package.json its like this regarding entity

问题 It's my first time using asp 5\core1 and i'm having problem setting a entity framework dbcontext I have one class library with my object public class Utilizador { public Utilizador() { } public int id { get; set; } } Then i have a Web Api project with a reference to my class and a context public class Context : DbContext { public Context(DbContextOptions<Context> options) : base(options) { } public DbSet<Utilizador> Utilizadores { get; set; } } My package.json its like this regarding entity

问题 After adding a new one-to-one relation to one of my table I cannot figure out how to add default data for existing rows in my database. My database basically looked like this before upgrade: -- Team -- Name: TEXT -- History -- Id: INT ... where History is has foreign keys pointed to it from other unrelated tables. In my upgrade I basically want a Team to have a single History so my new db looks like: -- Team -- Name: TEXT HistoryId: INT -- History -- Id: INT My problem now, however is that I