Display all entity validation errors (EF 6)

ApplicationDbContextEntityValidationOverrides.cs

public class ApplicationDbContext : DbContext
{
    //...

    public override int SaveChanges()
    {
        try
        {
            return base.SaveChanges();
        }
        catch (DbEntityValidationException e)
        {
            ThrowEnhancedValidationException(e);
        }

        return 0;
    }

    public override Task<int> SaveChangesAsync()
    {
        try
        {
            return base.SaveChangesAsync();
        }
        catch (DbEntityValidationException e)
        {
            ThrowEnhancedValidationException(e);
        }

        return Task.FromResult(0);
    }

    public override Task<int> SaveChangesAsync(CancellationToken cancellationToken)
    {
        try
        {
            return base.SaveChangesAsync(cancellationToken);
        }
        catch (DbEntityValidationException e)
        {
            ThrowEnhancedValidationException(e);
        }

        return Task.FromResult(0);
    }

    protected virtual void ThrowEnhancedValidationException(DbEntityValidationException e)
    {
        var errorMessages = e.EntityValidationErrors
                .SelectMany(x => x.ValidationErrors)
                .Select(x => x.ErrorMessage);

        var fullErrorMessage = string.Join("; ", errorMessages);
        var exceptionMessage = string.Concat(e.Message, " The validation errors are: ", fullErrorMessage);
        throw new DbEntityValidationException(exceptionMessage, e.EntityValidationErrors);
    }
}

EntityValidationErrors.cs

try
{
    _db.SaveChanges();
}
catch (DbEntityValidationException ex)
{
    foreach (var eve in ex.EntityValidationErrors)
    {
        Console.WriteLine("Entity of type \"{0}\" in state \"{1}\" has the following validation errors:",
            eve.Entry.Entity.GetType().Name, eve.Entry.State);
        foreach (var ve in eve.ValidationErrors)
        {
            Console.WriteLine("- Property: \"{0}\", Error: \"{1}\"",
                ve.PropertyName, ve.ErrorMessage);
        }
    }
}

EntityValidationErrorsDebug.cs

try
{
    _db.SaveChangesAsync();
}
catch (DbEntityValidationException e)
{
    foreach (var eve in e.EntityValidationErrors)
    {
        System.Diagnostics.Debug.Print("Entity of type \"{0}\" in state \"{1}\" has the following validation errors:",
            eve.Entry.Entity.GetType().Name, eve.Entry.State);
        foreach (var ve in eve.ValidationErrors)
        {
            System.Diagnostics.Debug.Print("- Property: \"{0}\", Error: \"{1}\"",
                ve.PropertyName, ve.ErrorMessage);
        }
    } 
}