Sorting Arraylist With Objects Using ICompareable Interface

Using IComparable Interface:



//Step 1: Consider the CarClass
class Car
{
    public string Make{ set; get; }
    public int Year{ set; get; }
    public string Location { set; get; }
}

//Step 2: Implement the IComparable interface
public int CompareTo(object obj)
{
  if (obj is Car)
  {
    Car c2 = (Car)obj;
    return Make.CompareTo(c2.Make);
  }
  else
    throw new ArgumentException("Object is not of type Car.");
}


//Step 3: Test Sorting by Make
Car objCar = new Car();
ArrayList carArray = new ArrayList();

objCar.Make = "Audi";
objCar.Year = 2014;
objCar.Location = "Georgia";
carArray.Add(objCar);
objCar = null;

objCar = new Car();
objCar.Make = "Mercedes";
objCar.Year = 2005;
objCar.Location = "Newyork";
carArray.Add(objCar);
objCar = null;

objCar = new Car();
objCar.Make = "Toyota";
objCar.Year = 1999;
objCar.Location = "California";
carArray.Add(objCar);
objCar = null;

carArray.Sort();
// You will get the carArray is sorted alphabetically by Make.