this keyword

this is referencing the current type.


using System;
class Rectangle {
   public int Width;
   public int Height;
   public Rectangle(int w = 5, int h = 6){
     this.Width = w;
     this.Height = h;
   }
}

class Program
{
    static void Main(string[] args)
    {
        Rectangle r = new Rectangle();
        Console.WriteLine(r.Width);
        Console.WriteLine(r.Height);
    }
}

The output:


5
6

this can be used to avoid name shading.


using System;
class Rectangle {
   public int Width;
   public int Height;
   public Rectangle(int Width, int Height){
     this.Width = Width;
     this.Height = Height;
   }
}

class Program
{
    static void Main(string[] args)
    {
        Rectangle r = new Rectangle(2,3);
        Console.WriteLine(r.Width);
        Console.WriteLine(r.Height);
    }
}

The output:


2
3

this cannot be used in static context.

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