.NET by Jerry

Effective Logging Practices in C# Methods

Logging is an essential part of application development for debugging, monitoring, and understanding the flow of execution, especially in complex systems. When logging in a C# method with parameters that need validation, it's crucial to follow best practices to ensure clear and useful log messages. Below is a sample demonstrating how to log and validate parameters in a C# method:

public bool ValidateAndProcessData(string data)
    // Log the start of the method
    _logger.LogInformation("ValidateAndProcessData method started");

    // Validate input data
    if (string.IsNullOrEmpty(data))
        _logger.LogError("Input data is null or empty");
        throw new ArgumentException("Input data cannot be null or empty", nameof(data));

        // Process data
        _logger.LogInformation("Processing data: {data}", data);

        // Simulating processing time

        _logger.LogInformation("Data processed successfully");
        return true;
    catch (Exception ex)
        // Log any exceptions that occur during processing
        _logger.LogError(ex, "Error processing data: {data}", data);
        throw; // Re-throw the exception for higher-level handling
        // Log the end of the method
        _logger.LogInformation("ValidateAndProcessData method completed");

By following this sample, you ensure that your method logs relevant information about parameter validation and method execution, making it easier to debug and monitor your application's behavior.


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