this Example

CSharp · Console

/Program.cs

using System;
					
public class Program
{
  class Person
  {
    public string name { get; set; }

    public Person(string name)
    {
      // using this to distinguish between the class variable name & the parameter name
      this.name = name;
    }

    public void GetDetails()
    {
      Console.WriteLine("Name: {0}", name);
      
	  // using this to pass the current instance of this class to another class method
      Console.WriteLine("Favorite Number: {0}", Stuff.MakeNumberFromName(this));
    }
  }

  class Stuff
  {
	// This method takes the name from a Person object that is passed to it
	// and multiplies its length by 10.
    public static int MakeNumberFromName(Person p)
    {
      return p.name.Length * 10;
    }
  }

  public static void Main()
  {
    Person Bob = new Person("Bob");
    Bob.GetDetails();
    // outputs:
    // Name: Bob
    // Favorite Number: 30
  }
}