Top "Entity-framework-core" questions

What logic determines the insert order of Entity Framework 6

So, I have a DBContext, and I am doing the following operations: dbContext.SomeTables1.Add(object1) dbContext.SomeTables2.AddRange(objectArray2) …

c# entity-framework entity-framework-6 entity-framework-core

Add-Migration Value cannot be null. Parameter name: language

I am trying to create a new migration but I get an System.ArgumentNullException saying: System.ArgumentNullException: Value cannot be …

c# entity-framework-core entity-framework-core-migrations

LINQ group by in Entity Framework Core 3.1

I have a database table to connect data between user and clients. db: class UserClientCorporate{ int UserId; User User; int …

c# asp.net-core .net-core entity-framework-core ef-core-3.1

.NET Core 2.x Identity int foreign key cannot target int primary key

I have a web application running .net core 2.x (just upgraded from .net core 1.x finally) and I've gotten most …

c# asp.net-core entity-framework-core invalidoperationexception asp.net-core-identity

Could not load assembly Microsoft.EntityFrameworkCore.Design when running Add-Migration

I have created a Class Library project with the following .csproj: <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup&…

asp.net-core entity-framework-core entity-framework-migrations asp.net-core-1.1

Entity Framework 3.0 Contains cannot be translated in SQL as it was in EF Core 2.2

I am trying to migrate a Web API from .NET Core 2.2 to .NET Core 3.0 and I have stumbled across the …

entity-framework-core .net-core-3.0 entity-framework-core-3.0

How to dynamically order by certain entity properties in Entity Framework 7 (Core)

I have a project where the front-end JavaScript specifies a list of columns to order by. Then in the back-end …

linq sql-order-by asp.net-core dynamic-sql entity-framework-core

PATCH when working with DTO

I'm working on asp.net core webAPi and EF core, and want to implement "update" operation (partially edit entity). I …

c# rest asp.net-core entity-framework-core json-patch

Purpose of package "Microsoft.EntityFrameworkCore.Design"

All tutorials agree that project.json should include: "Microsoft.EntityFrameworkCore.Design": { "type":"build", "version":"1.0.0-preview2-final" } I have never included …

c# asp.net-core .net-core entity-framework-core

Create an optional foreign key using the fluid-API for Entity Framework 7

I'm trying to create an optional foreign key using Entity Framework 7 and the Fluid-API. In EF v6.x we had …

foreign-keys optional fluid entity-framework-core