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-- Table contents

--	Customers
--	CustomerID		CustomerName	Country
--	1				      Jarmo			    Suomi
--	2				      Risto			    Ruotsi
--	3				      Erno			    Englanti
--	4				      Testeri			  Testimaa

--	Orders

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace SimpleGenericsTest
{
    /// <summary>
    /// Generic registration class
    /// </summary>

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WinFormsDelegateTest

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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WinFormsLifecycleEvents

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using Microsoft.VisualBasic.ApplicationServices;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;

namespace WinFormsSingleInstance
{
    static class Program
    {

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// Airplane = base class
// F16 = derived class

// covariance: can use MORE spesific type than originally specified
IEnumerable<F16> f16s = new List<F16>();
IEnumerable<Airplane> covariance = f16s;

// contravariance: can use LESS specific type than originally specified
Action<Airplane> airplanes = (target) => { Console.WriteLine(target.GetType().Name); };
Action<F16> contravariance = airplanes;

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;

namespace WidgetApp
{
    /// <summary>
    /// Simple factory that creates a widget based on its name 

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var obj = {};

var func = function(){ return 'moro' };

var func2 = function(){ return 'no terve terve'};

console.log(func());

obj.prop = func;

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// char array containing lower-case letters from a..z
var letters = new char[] {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'};

// int to binary string with leading zeros
Convert.ToString(3, 2).PadLeft(4, '0'); // 0011
Convert.ToString(3, 2).PadLeft(8, '0'); // 00000011

// binary to int    
int output = Convert.ToInt32(input, 2);