Windows Event Log with .Net 5

Windows Event Log is a Windows-specific function, but .Net 5 is cross-platform. If you run this code on Linux, there will be problems.

The solution is simple, just add a judgment statement:

        static void Main(string[] args)  
        {  
            if (OperatingSystem.IsWindows())  
            {  
                using (EventLog eventLog = new EventLog("Application"))  
                {  
                    eventLog.Source = "Application";  
                    eventLog.WriteEntry("Log message example", EventLogEntryType.Information, 101, 1);  
                }  
            }  
        }  

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You have to install the Microsoft.Extensions.Logging.EventLog NuGet package first, to be able to use the EventLog class.

System.Diagnotics.EvengLog does not work

It works if you add in the .csproj file :

 <ItemGroup>
        <FrameworkReference Include="Microsoft.WindowsDesktop.App" />
 </ItemGroup>

(tested with .NET 5 Console, on Windows 10 1909)