How can I implement exception logging in C#?

How can I implement exception logging in C#?

You can use try-catch blocks to handle exceptions and log them using libraries like NLog or log4net.

Can you show me a simple example using NLog?

Sure! First, install the NLog package. Then, configure it in your appsettings.json and use it in your catch block like this:

try {
    // Your code here
} catch (Exception ex) {
    var logger = LogManager.GetCurrentClassLogger();
    logger.Error(ex, "An error occurred");
}

What if I want to log to a database instead of a file?

You can configure NLog to log to a database by setting up a database target in your NLog configuration. Here's an example:

<targets>
  <target xsi:type="Database" name="database">
    <connectionString>your_connection_string</connectionString>
    <commandText>INSERT INTO Logs (Message, Time) VALUES (@message, @time)</commandText>
    <parameter name="@message" layout="${message}" />
    <parameter name="@time" layout="${longdate}" />
  </target>
</targets>

Are there any best practices for exception logging?

Yes, some best practices include logging at different levels (Info, Warn, Error), avoiding logging sensitive information, and ensuring logs are easily searchable.