System.Data.SqlClient.SqlParameter.FixStreamDataForNonPLP C# (CSharp) Méthode

        internal void FixStreamDataForNonPLP()
        {
            object value = GetCoercedValue();
            AssertCachedPropertiesAreValid();
            if (!_coercedValueIsDataFeed)
            {
                return;
            }

            _coercedValueIsDataFeed = false;

            if (value is TextDataFeed)
            {
                if (Size > 0)
                {
                    char[] buffer = new char[Size];
                    int nRead = ((TextDataFeed)value)._source.ReadBlock(buffer, 0, Size);
                    CoercedValue = new string(buffer, 0, nRead);
                }
                else
                {
                    CoercedValue = ((TextDataFeed)value)._source.ReadToEnd();
                }
                return;
            }

            if (value is StreamDataFeed)
            {
                if (Size > 0)
                {
                    byte[] buffer = new byte[Size];
                    int totalRead = 0;
                    Stream sourceStream = ((StreamDataFeed)value)._source;
                    while (totalRead < Size)
                    {
                        int nRead = sourceStream.Read(buffer, totalRead, Size - totalRead);
                        if (nRead == 0)
                        {
                            break;
                        }
                        totalRead += nRead;
                    }
                    if (totalRead < Size)
                    {
                        Array.Resize(ref buffer, totalRead);
                    }
                    CoercedValue = buffer;
                }
                else
                {
                    MemoryStream ms = new MemoryStream();
                    ((StreamDataFeed)value)._source.CopyTo(ms);
                    CoercedValue = ms.ToArray();
                }
                return;
            }

            if (value is XmlDataFeed)
            {
                CoercedValue = MetaType.GetStringFromXml(((XmlDataFeed)value)._source);
                return;
            }

            // We should have returned before reaching here
            Debug.Assert(false, "_coercedValueIsDataFeed was true, but the value was not a known DataFeed type");
        }