I am trying to keep BooksContext.cs file in a folder called Contexts. I have a single Book class inside Entities folder. Hence, below is the code in BookContext.cs file. I have used the following...

So EF Core preview 7 was released and I decided to use it along with C# 8 previews and .NET Core 3.0 preview 7. Let's say I have a class representing a many-to-many relationship: public class A {...

I have the following Entity Framework Core 3.0 query: var units = await context.Units .SelectMany(y => y.UnitsI18N) .OrderBy(y => y.Name) .GroupBy(y => y.LanguageCode) .ToDictionaryAs...

Issue with Azure Functions/EFSQLSERVER .NET CORE 3.0: To reproduce: Use Visual Studio 2019 16.2.1 Use Azure Function template to create a project. Changed Target Framework to .NET Core 3.0 Add ...

I'm trying to upgrade a solution to the new Core Framework 3.0.0. Now I'm having a small issue I don't understand. Look, this method was unproblematic in 2.2.6: public async Task<IEnumerable&l...

Perhaps my expectation requires resetting. I was doing a proof of concept for a "non-tracking" context. In the constructor of the context, I added the following lines: ChangeTracker.Query...

I'm running a fairly simple query in Microsoft Entity Framework Core 3.0 that looks like this: var dbProfile = db.Profiles.Where(x => x.SiteId == Int32.Parse(id)) .Include(x => x.Interests)...

Currently when there is a mistake in the config of the DBContext model, we get an error at run-time. For example: The entity type 'MyObject' requires a primary key to be defined. If you intended...

I have a ASP.NET Core 2.2 WebApi project which uses also EF Core 2.2. The project is tested via integration tests with WebApplicationFactory<T>. I tried to migrate the the web api project to...

I had the following code, which was running well with EF Core 2.1: .FirstOrDefault(a => (a.Name.Equals(b, StringComparison.InvariantCultureIgnoreCase). (Ok, running well means I got the right ...

I am trying to migrate a Web API from .NET Core 2.2 to .NET Core 3.0 and I have stumbled across the following: public Dictionary<int, Tag> GetTagMap(IList<int> tagIds = null) { var ta...

This happened at home first, so I thought maybe it was an issue with my desktop PC at home. But now that I am back at work, I tried the upgrade and got the same thing. Screenshot before upgrade Sc...