I need to use both AddDbContext<MyContext> (scoped) and AddDbContextFactory<MyContext> (singleton) in my ASP.NET Core application. The DbContextFactory will be used in background tasks, ...

I'm facing a problem when saving entities with Entity Framework Core 6 (without migrations, SQL Server database). Even with the explicit mapping of foreign keys, EF Core tries to insert a column that ...

I already had a question related to this property of mine, and I got bashed by some of the community members on why I expect EF Core to treat a regular property like a regular property and not as a ...

I am in the early stages of converting an .Net Framework application to .Net 8+. This is a phased project, so at this stage I am trying to move from Entity Framework 6 to EF Core 3.1 (the latest ...

I am building an application in ASP.NET Core 8.0 MVC. For data layer and mapping I am going to use Entity Framework Core. There is an existing Oracle database, so I am going to follow a database-first ...

Return in controller shows "mostly" correct data but when returning it on client side is null. I use Angular 19, .NET Core and EF Core. The mapping seems to be selective. I create an Article ...

I want to use Entity Framework with a old database. I have the script.sql to create the database. Is there any way or tool that will read the script and generate the EF configuration? I haven't found ...

I'm having trouble creating new entities with one-to-one relationships. EF Core is not assigning the foreign keys properly. As an example, let's take two entities: public class User { public int ...

I use TransactionScope and I have problems with understanding what determines transaction promotion to distributed transaction. With .NET on linux, there is no MSDTC, so such promotion causes an ...

I got into this error, While i can confirm I do have the database at the root of my application with the relevant table. Microsoft.EntityFrameworkCore.DbUpdateException: 'An error occurred while ...

I have an EF Core defined table, and a child entity that is configured using OwnsOne without using a secondary table. The properties of the child entity are stored in the same table as the parent ...

I've got a table with the filed string Data { get; set; } of type jsonb: modelBuilder.Entity<LayoutEntity>(b => { b.Property(p => p.Data).IsRequired().HasColumnName("data")....

I want to create a test website for recording a company's information. After running the software and entering three data entries, everything goes well. However, after registering the fourth data ...

I have an entity Foo in my .NET 8 application that represents a tenanted object. In the database, it has these properties: Id TenantId (can be null) In my C# entity class, I want to have: Id ...

I have an ASP.NET Core 8.0 Web API project with EF Core, and I'm trying to use strongly-typed IDs. Previously, I had a couple models with these strongly-typed IDs and each have their own value ...