Hi Sheik,
You can find the .NET version of the Stock-List Demos in the Lightstreamer distribution Allegro/Presto/Vivace.
- download Lightstreamer Allegro/Presto/Vivace from
http://www.lightstreamer.com/download and unzip it
- look at DOCS-SDKs/sdk_client_dotnet/examples/DotNetClientStockListDemo
(BTW it it's a client question, you should have posted it at the ".NET Client API" forum, instead of this one - the ".NET Adapter API". )
Regards,
Marco