System.Configuration.ClientSettingsStore.QuotaEnforcedStream.Seek C# (CSharp) Метод

            public override long Seek(long offset, SeekOrigin origin) {
                if (!CanSeek) {
                    throw new NotSupportedException();
                }

                long oldLen = _originalStream.Length;
                long newLen;

                switch (origin) {
                    case SeekOrigin.Begin:
                        newLen = offset;
                        break;
                    case SeekOrigin.Current:
                        newLen = _originalStream.Position + offset;
                        break;
                    case SeekOrigin.End:
                        newLen = oldLen + offset;
                        break;
                    default:
                        throw new ArgumentException(SR.GetString(SR.UnknownSeekOrigin), "origin");
                }

                EnsureQuota(Math.Max(oldLen, newLen));
                return _originalStream.Seek(offset, origin);
            }