NLog in C#: Complete Tutorial

To use NLog in C #, you need to first install the NLog NuGet package. You can search for NLog in the NuGet package manager and install it. Once installed, you can use NLog in your code to log information.

Here is a simple example demonstrating how to use NLog in C#.

using NLog;

class Program
{
    private static Logger logger = LogManager.GetCurrentClassLogger();

    static void Main(string[] args)
    {
        logger.Info("Hello, NLog!");

        try
        {
            throw new Exception("Oops! Something went wrong.");
        }
        catch (Exception ex)
        {
            logger.Error(ex, "An error occurred");
        }

        LogManager.Shutdown();
    }
}

In the example above, we first create a Logger object and then use the Info and Error methods to log information. The Info method is used to log information-level logs, while the Error method is used to log error-level logs. When an exception occurs, the Error method can be used to log the exception information.

It’s important to note that you need to call the LogManager.Shutdown() method at the end of the program to clean up NLog resources.

In addition to using the default NLog configuration, you can also configure NLog through the NLog.config file. This file allows you to define the output destination, log format, log level, and other information related to logging.

In summary, the steps to log with NLog are as follows:

1. Install the NLog NuGet package.
2. Instantiate a Logger object
3. Utilize the Logger object to record log information.
4. Call LogManager.Shutdown() to clean up resources at the end of the program.
5. You can configure NLog through the NLog.config file.

I hope this can help you learn how to use NLog to log messages in C#.