How can we turn off the generation of proxies for a single instance in Entity Framework 7?

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In Entity Framework 7, proxies are generated by default for all models unless explicitly disabled. To turn off the generation of proxies for a single instance, you can set the UseProxy property to "false" in the DbContextOptionsBuilder instance.

Here's an example:

public class MyDbContext : DbContext
{
    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
    {
        optionsBuilder.UseProxy(false); // disable proxy generation
        optionsBuilder.UseSqlServer("connection_string_here");
    }
}

Alternatively, you can also disable proxy generation for a specific entity type by configuring it in the model builder and using the ConfigureConventions method:

public class MyDbContext : DbContext
{
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<MyEntity>(entity =>
        {
            entity.ConfigureConventions().UsePropertyAccessMode(PropertyAccessMode.Field); // disable proxy generation for specific entity
        });
    }
}

Note that turning off proxy generation can impact performance in certain scenarios, such as when lazy loading is needed. Therefore, it is important to carefully consider the impact before disabling proxy generation.