Catel.Data.ValidationContext.UpdateLastModificationStamp C# (CSharp) Метод

        private void UpdateLastModificationStamp(DateTime dateTime, bool resetLastModifiedTicksToZero = false)
        {
            LastModified = dateTime;

            if (resetLastModifiedTicksToZero)
            {
                LastModifiedTicks = 0;
            }
            else
            {
#if NET
                LastModifiedTicks = _stopWatch.ElapsedTicks;
#else
                LastModifiedTicks = dateTime.Ticks;
#endif                
            }
        }