Скачать или смотреть How to Change the Logging Level of a Log4net Appender from C# Code

Learn how to dynamically change the logging level of a specific Log4net appender in your C# application, enhancing your logging control and management capabilities.
---
This video is based on the question https://stackoverflow.com/q/64822000/ asked by the user 'Kamran Shahid' ( https://stackoverflow.com/u/578178/ ) and on the answer https://stackoverflow.com/a/64969939/ provided by the user 'Kamran Shahid' ( https://stackoverflow.com/u/578178/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: log4net how to change logging level of appender from code of certain appender

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Mastering Log4net: Change the Logging Level of an Appender from C# Code

In the world of software development, effectively monitoring and debugging your applications through logging is crucial. Log4net is a popular logging framework for .NET applications that provides flexible and manageable logging capabilities. A common requirement that developers encounter is the need to dynamically change the logging level of an appender at runtime. In this guide, we’ll discuss how to achieve this with Log4net by adjusting the logging level of a specific appender directly from your C# code.

Understanding the Problem

Imagine you have a scenario where your application logs messages using multiple appenders, and each appender filters log events based on their severity level (such as DEBUG, INFO, WARN, etc.). Sometimes, based on the application's requirements or user input, you may need to change the minimum logging level of a specific appender without restarting your application. This can enhance your application's flexibility and responsiveness to different situations.

Here’s an example of a typical appender configuration in log4net.config:

[[See Video to Reveal this Text or Code Snippet]]

The Solution

To programmatically change the minimum logging level of a specific appender, we can define a method in our C# code that interacts with the Log4net configuration. Here’s how you can do it:

Step 1: Define the Method

First, we’ll define a method that takes an appender and the desired logging level as parameters:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Call the Method

Once you have defined the SetFilterMinLogLevel method, you can invoke this method wherever you need to change the logging level. For instance:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following the steps outlined in this guide, you can easily change the logging level of specific appenders in Log4net from your C# code. This capability provides enhanced flexibility for logging in various environments and situations, allowing you to adapt your logging strategy to current needs dynamically.

Feel free to implement this change in your applications and enjoy more control over your logging behaviors!