C# Region Guide: Organize Code with #region

In C#, the #region is a code folding feature used to organize and collapse related code blocks. The #region directive allows you to define a collapsible region, enabling you to better organize code and improve code readability. You can name these regions to make it easier to identify and access different areas within the code.

Here is an example code demonstrating how to use #region and #endregion to create a region:

using System;

public class Program
{
    public static void Main()
    {
        #region Initialization
        int a = 5;
        int b = 10;
        #endregion

        #region Calculation
        int sum = a + b;
        Console.WriteLine("Sum: " + sum);
        #endregion
    }
}

In the example above, #region Initialization and #region Calculation are two sections designed to contain variable initialization and calculation logic, respectively. This makes it easier to differentiate between different parts of the code and allows for the ability to hide or show code within certain regions through the folding feature.