如何使用etw nlog将日志写入自定义eventsource

using System.Diagnostics.Tracing;

[EventSource(Name = "MyCustomEventSource")]
public class MyCustomEventSource : EventSource
{
    public static MyCustomEventSource Log = new MyCustomEventSource();

    [Event(1, Message = "This is a log message", Level = EventLevel.Informational)]
    public void LogMessage(string message)
    {
        if (IsEnabled())
        {
            WriteEvent(1, message);
        }
    }
}

<targets>
    <target xsi:type="ETW" name="etwTarget" layout="${message}" />
</targets>
<rules>
    <logger name="*" minlevel="Info" writeTo="etwTarget" />
</rules>

NLog.LogManager.Configuration = new NLog.Config.XmlLoggingConfiguration("nlog.config");
NLog.LogManager.Configuration.AddTarget("etwTarget", new NLog.Targets.ETWTarget()
{
    Name = "etwTarget",
    Layout = "${message}",
    EventSource = "MyCustomEventSource"
});
NLog.LogManager.ReconfigExistingLoggers();

MyCustomEventSource.Log.LogMessage("This is a log message");