デザインパターンメモ

Dispose

public static class DisposeSample {
    public static void Execute() {
        using (var obj = new DerivedClass()) {
        }
    }

    class BaseClass : IDisposable {
        private bool _disposed = false;

        ~BaseClass() {
            Dispose(disposing: false);
        }

        public void Dispose() {
            Dispose(disposing: true);
            GC.SuppressFinalize(this);
        }

        protected virtual void Dispose(bool disposing) {
            if (_disposed) return;

            if (disposing)
            {
            }

            Console.WriteLine($"BaseClass.Dispose({disposing});");
            _disposed = true;
        }
    }

    class DerivedClass : BaseClass {
        private bool _disposed = false;

        protected override void Dispose(bool disposing) {
            if (_disposed) return;

            if (disposing)
            {
            }

            Console.WriteLine($"DerivedClass.Dispose({disposing});");
            base.Dispose(disposing);
            _disposed = true;
        }
    }
}

Execute()実行結果

DerivedClass.Dispose(True);
BaseClass.Dispose(True);