The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 5: FILESTREAM with ASP.NET and Silverlight//Begin a transactionSqlTransaction transaction = cn.BeginTransaction("ItemTran");cmd.Transaction = transaction;byte[] txContext = null;string filePath = string.Empty;try{//Execute the commandSqlDataReader reader = cmd.ExecuteReader();if (reader.Read()){txContext = (reader["txContext"] as byte[]);filePath = reader["filePath"].ToString();}Reader.Close();//Open the FILESTREAM data file for writingSqlFileStream fs = new SqlFileStream(filePath, txContext,FileAccess.Write);//Get a stream object pointing to the content to be uploadedStream localFile = fpItemImage.FileContent;//Start transferring data into FILESTREAM data file// If you are using .NET 4.0 the next 11 lines of code can be// replaced with a single call to "localFile.CopyTo(fs, 4096);"BinaryWriter bw = new BinaryWriter(fs);const int bufferSize = 4096;byte[] buffer = new byte[bufferSize];int byteCount = localFile.Read(buffer, 0, bufferSize);while (byteCount == bufferSize){bw.Write(buffer, 0, bytes);bw.Flush();byteCount = localFile.Read(buffer, 0, bufferSize);}Bw.Close();}//Close the fileslocalFile.Close();fs.Close();174