Raj has been working on Netduino tutorials and so latest one is here. It’s about interfacing eight digit 7 segment LED display to Netduino. LED displays are driven using MAX7219 LED driver chip which accepts data via SPI interface. So this is all about sending SPI data from Netduino.
Netduino is a bit different from Arduino, because it is programmed using .NET framework. If you are comfortable with this platform, then it is really easy to get it working. Tutorial goes through several methods of running display. Take a look and you might find that works for you.