C# Regions: Purpose & Best Practices

In C#, a region is a comment tag used to group and collapse code blocks in order to improve code readability and maintainability. When code files become very large, using regions can help developers quickly browse and navigate to the sections of interest. By using regions, related functionality or logic can be organized together, and code blocks can be expanded or collapsed as needed, making the code clearer and easier to manage. However, it is important to note that regions are simply a tool for organizing and improving code readability, and do not affect the compilation process or runtime behavior.