// Create a byte array from a decimal
public static byte[] DecimalToByteArray (decimal src) {
 
    // Create a MemoryStream as a buffer to hold the binary data
    using (MemoryStream stream = new MemoryStream()) {
 
        // Create a BinaryWriter to write binary data to the stream
        using (BinaryWriter writer = new BinaryWriter(stream)) {
 
            // Write the decimal to the BinaryWriter/MemoryStream
            writer.Write(src);
 
            // Return the byte representation of the decimal 
            return stream.ToArray();
        }
    }
}
//csharp/7767