public static DigitalGood Load(Int32 digitalGoodId, bool useCache)
        {
            if (digitalGoodId == 0)
            {
                return(null);
            }
            DigitalGood digitalGood = null;
            string      key         = "DigitalGood_" + digitalGoodId.ToString();

            if (useCache)
            {
                digitalGood = ContextCache.GetObject(key) as DigitalGood;
                if (digitalGood != null)
                {
                    return(digitalGood);
                }
            }
            digitalGood = new DigitalGood();
            if (digitalGood.Load(digitalGoodId))
            {
                if (useCache)
                {
                    ContextCache.SetObject(key, digitalGood);
                }
                return(digitalGood);
            }
            return(null);
        }
        public static bool Delete(Int32 digitalGoodId)
        {
            DigitalGood digitalGood = new DigitalGood();

            if (digitalGood.Load(digitalGoodId))
            {
                return(digitalGood.Delete());
            }
            return(false);
        }