System.Net.Cache.RequestCache.Update C# (CSharp) Method

        internal abstract void    Update(
                                        string           key,
                                        DateTime         expiresUtc,
                                        DateTime         lastModifiedUtc,
                                        DateTime         lastSynchronizedUtc,
                                        TimeSpan         maxStale,
                                        StringCollection entryMetadata,
                                        StringCollection systemMetadata);

        protected virtual void Dispose(bool disposing, CloseExState closeState)
        {
            try {
                if (Interlocked.Increment(ref _Disposed) == 1)
                {
                    if (disposing)
                    {
                        ICloseEx icloseEx = WrappedStream as ICloseEx;

                        if (icloseEx != null)
                        {
                            icloseEx.CloseEx(closeState);
                        }
                        else
                        {
                            WrappedStream.Close();
                        }

                        if (m_CacheDestroy)
                        {
                            if (m_IsStrictCacheErrors)
                            {
                                m_Cache.Remove(m_Key);
                            }
                            else
                            {
                                m_Cache.TryRemove(m_Key);
                            }
                        }
                        else
                        {
                            if (m_IsStrictCacheErrors)
                            {
                                m_Cache.Update(m_Key, m_Expires, m_LastModified, m_LastSynchronized, m_MaxStale, m_EntryMetadata, m_SystemMetadata);
                            }
                            else
                            {
                                m_Cache.TryUpdate(m_Key, m_Expires, m_LastModified, m_LastSynchronized, m_MaxStale, m_EntryMetadata, m_SystemMetadata);
                            }
                        }
                    }
                }
            }
            finally {
                base.Dispose(disposing);
            }
        }