/// <summary> /// Adds <see cref="IEntityTypeConfiguration" /> from all of the <paramref name="assemblies" /> specified. /// </summary> /// <param name="builder">The builder.</param> /// <param name="assemblies">The assemblies to search for <see cref="IEntityTypeConfiguration" />.</param> /// <returns>The builder.</returns> /// <exception cref="ArgumentNullException">Thrown when <paramref name="assemblies" /> is null.</exception> public static DbContextOptionsBuilder AddEntityTypeConfigurations(this DbContextOptionsBuilder builder, params Assembly[] assemblies) { Parameter.Validate(assemblies, nameof(assemblies)) .IsNotNull(); AssemblyEntityTypeConfigurationProvider provider = new AssemblyEntityTypeConfigurationProvider(assemblies); return(builder.AddEntityTypeConfigurations(provider)); }