How to make lazy-loading work with EF Core 2.1.0 and proxies

Question

I have the following models:

public class Session
{
    public int SessionID { get; set; }
    public int UserID { get; set; }

    public virtual User User          


        

Answer 1

You can try to configure proxies in Startup.cs like

public void ConfigureServices(IServiceCollection services)
{
    #region Database configuration

    // Database configuration
    services.AddDbContext(options =>
        options.UseLazyLoadingProxies()
            .UseSqlServer(Configuration.GetConnectionString("MyConnectionString")));

    #endregion Database configuration
}

And by the way you can already update you app packages to pure 2.1.0 (not final or RC). One of the reasons why your configuration may not work is an unstable version of components.

NB: Microsoft.EntityFrameworkCore.Proxies.dll is installed from nuget independently from EFCore