using System;

​

// http://stackoverflow.com/questions/26109120/when-an-instance-of-a-class-is-returned-do-all-properties-get-returned

public static class Go

{

    public static void Main()

    {

        var customer = new Customer();

        Console.WriteLine("First get.  Result: {0}", customer.CustAcct);

        Console.WriteLine("Second get.  Result: {0}", customer.CustAcct);

    }

}

​

public class Customer

{

    private double ? _custAcct = null;

    public double CustAcct

    {

        get

        {

            if (!_custAcct.HasValue)

            {

                _custAcct = GetCustAcct();

            }

​

            return _custAcct.Value;

        }

    }

​

    private double GetCustAcct()

    {

        // do something that takes a long time

        Console.WriteLine("Something is taking a long time");

        return 1234.45;

    }

}