DEV Community: Sergio Di Fiore

EF Core Saving error for two objects depending on a second equal one

Sergio Di Fiore — Wed, 07 Oct 2020 21:06:11 +0000

Oct 6 '20 Comments: 10 Answers: 2

I have a vey long long POCO class ("FichaCliente") that I'll simplify here emphasizing the property that's an ObservableCollection:

{
  public int FichaCliente1 { get; set; }
  public int FichaClienteN { get; set; }

  public ObservableCollection<Reclamado> Reclamados { get; set; }

  public int FichaClienteN+2 { get; set; }
  ...

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EF on NET.CORE dbcontext not loading in WPF page on

Sergio Di Fiore — Wed, 01 Jul 2020 13:34:09 +0000

Jun 30 '20 Comments: 16 Answers: 0

A system in NET.Core 3.1 and WPF has the following DbContext:

public class DataContext : DbContext
{
    public DataContext(DbContextOptions<DataContext> options) : base(options) { }
    public DbSet<Role> Roles { get; set; }
    public DbSet<Usuario> Usuarios { get; set; }
}

The ConfigureDervices in App.xaml.cs is as follows:

private void ConfigureServices(IConfiguration configuration,

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