.NET store properties calculation
===

My class has complicated property:
        private Image m_LogoImage=null;

        public Image LogoImage
        {
            get
            {
                if (m_LogoImage == null && File.Exists(Data.LogoFileUrl))
                {
                    DrawingImage image = DrawingImage.FromFile(Data.LogoFileUrl);
                    m_LogoImage = Image.GetInstance(image, new Color(1, 1, 1));
                }
                return m_LogoImage;
            }
        }

LogoImage.get is very slow and resource consuming action to the first time the client calls it, the property calculate the image and stored the result in private variable m_LogoImage.   
This looks to me very basic. .NET support automatic properties (`public string P {get;set;}`). Does it support automatic storing of complicated properties?