public void LogSample()
{
    Log.Critical("Period.Delimited.Category", "This is a critical problem",
        "We are writing a test message with multiple insertion strings: {0} {1} {2}",
        "string", 124, DateTime.Now);
    Log.Warning("Period.Delimited.Category", "This might be a problem problem",
        "You don't have to provide insertion strings if you don't want to");
    //Any of the different severities can include details of an exception.  Don't bother
    //dumping it in the message area; it'll all be showing in the Loupe Desktop under the Exception.
    Exception ex = new InvalidOperationException("This is an example invalid operation exception");
    Log.Error(ex, "Your Application.Exceptions", "We had an odd exception but managed to recover",
        "Here's a description of what we were doing.  We don't need to provide exception data.");
    //If you think the application might crash immediately after you call to record the message
    //you might want to make just this message synchronous.
    Log.Critical(LogWriteMode.WaitForCommit, "Your.Category", "We had a problem and may crash",
        "Just like our first method above we can now provide extended detail with insertion strings");
    Log.Verbose("Your.Category", "This is our lowest severity message",
        "Verbose is like a debug or success message - below all other severities.");
}

private void LogDirectAdvancedSample()
{
    //using the Write method you can perform additional tasks that aren't accessible through the
    //Trace-compatible API.
    Log.Write(LogMessageSeverity.Information,
        "This is the simplest form of write, and is identical to Log.TraceInformation");
    //One special case is for important messages that you need committed to disk before continuing
    //such as when logging during an unhandled exception.  There is a performance penalty, so this option
    //is not set by default.
    Log.Write(LogMessageSeverity.Critical, LogWriteMode.WaitForCommit,
        "This statement will not return until the log message is committed to disk");
    //and the variation with passing exceptions and additional parameters to insert are also supported.
    //see the documentation for Log.Write for other overloads.
}