The provided source code can be used as a starting point to familiarize with the Lightstreamer .Net Client API
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Lightstreamer - Quickstart Example - .NET Client

The Quickstart Example provides the source code to build a very simple and basic client application, used to test the capability of the Client APIs to connect and receive data from Lightstreamer Server. The example can be used to familiarize with the Client APIs and as a reference on how to use them, and can be used as a starting point for client application implementations.

This project contains the C# source files of a sample application, which shows how the Lightstreamer .NET Standard Client API can be used to connect to Lightstreamer Server.


The TestClient.cs file contains the source Main(). It basically connects to the server and performs a subscription, printing on the console the incoming Item Updates.


The test includes the necessary code and a sample configuration file for Library logging through Log4Net.


To build and install a version of this demo, pointing to your local Lightstreamer Server instance, follow the steps below.

  • The Quickstart Example needs both the PORTFOLIO_ADAPTER (see the Lightstreamer - Portfolio Demo - Java Adapter), and the QUOTE_ADAPTER (see the Lightstreamer - Stock-List Demo - Java Adapter). Therefore, as a prerequisite, the full version of the Lightstreamer - Portfolio Demo - Java Adapter has to be deployed on your local Lightstreamer Server instance. Please follow the instruction in Install the Portfolio Demo to install it.
  • Get the binaries files of the library (Lightstreamer_DotNet_Standard_Client.dll and Lightstreamer_DotNet_Standard_Client.pdb) from NuGet Lightstreamer.DotNetStandard.Client or use directly the Package Manager Console Install-Package Lightstreamer.DotNetStandard.Client. Then copy them into the lib directory of the project.
  • Get the Log4Net.dll, from, and copy it into the lib directory of the project.
  • Create a new C# project (we used Microsoft's Visual Studio 2017): from the "New Project..." wizard, choose the "Console Application" template, and use "quickstart" as project name.
  • Choose as Target framework .NET Framework 4.6.1.
  • From the "Solution Explorer", delete the default Program.cs.
  • Add a reference to the Lightstreamer .NET Standard Client library and the Log4net library: go to the "Browse" tab of the "Add Reference" dialog and point to the Lightstreamer_DotNet_Standard_Client.dll and Log4Net.dll files in the lib folder.
  • Add the TestClient.cs, TestConnectionListener.cs, TestTableListener.cs, and the Log4NetLogging.cs files from the "Add -> Existing Item" dialog.
  • Build the quickstart.exe file: from the Build menu, choose "Build Solution".
  • Run the demo. The host name and the port number of the Lightstreamer server have to be passed to the application as command line arguments.
    > quickstart.exe localhost 8080

Please refer to the instructions included in the source file for more details on how to configure and run the test.

See Also

Lightstreamer Adapters Needed by These Clients

Related Projects

Lightstreamer Compatibility Notes

  • Compatible with Lightstreamer .NET Standard Client Library version 4.0.0 or newer.
  • Ensure that .NET Standard Client API is supported by Lightstreamer Server license configuration.