AlexArchive’s gists

AlexArchive / StartupController

Last active December 18, 2015 00:19

Single Instance Startup Controller for Windows Forms Applications

	//<sumary>
	//Sample Usage of the StartupController class
	//</sumary>
	static class Program
	{
	[STAThread]
	static void Main()
	{
	StartupController startupController = new StartupController();
	startupController.RunOnce<MainForm>();

AlexArchive / RandomDouble.vb

Created June 16, 2013 18:06

Random Double

	Dim random As New Random()
	...
	Dim randomDouble As Double =
	Math.Round((random.NextDouble() * 6), 2)

AlexArchive / PortChecker.cs

Created June 17, 2013 20:20

Check if a TCP port is available / already in use on local machine

	private static bool PortAvailableForListening(int portNumber)
	{
	IPEndPoint[] activeTcpListeners = IPGlobalProperties.GetIPGlobalProperties().GetActiveTcpListeners();
	return activeTcpListeners.Select(x => x.Port == portNumber).FirstOrDefault();
	}

AlexArchive / DelegateProxy.vb

Created June 22, 2013 06:38

Delegate "proxy" to Convert.ToInt32(char value)

	Public Delegate Function ToInt32Proxy(ByVal value As Char) As Integer
	..
	Dim someDelegate =
	[Delegate].CreateDelegate(GetType(ToInt32Proxy), GetType(Convert).GetMethod("ToInt32", New Type() {GetType(Char)}))

	Dim someProxy = DirectCast(someDelegate, ToInt32Proxy)
	Dim someValue = someProxy("a")

AlexArchive / EnumerableExtension

Last active December 18, 2015 20:58

Convert an Enum to an IEnumerable so you can iterate over the values

	internal static IEnumerable<T> ToEnumerableOf<T>(this Enum theEnum)
	{
	return Enum.GetValues(theEnum.GetType()).Cast<T>();
	}

AlexArchive / gist:5846845

Created June 23, 2013 22:59

The yield keyword is merely syntactic sugar. This class demonstrates what is generated under the hood when you use yield return.

	public class Program
	{
	private static readonly Random _random = new Random();

	private static void Main()
	{
	foreach (int randomNumber in GetRandomNumbers(10))
	Console.WriteLine(randomNumber);

	Console.ReadKey();

AlexArchive / gist:5854294

Created June 24, 2013 22:32

Basic JavaScriptSerializer Deserialize example

	Imports System.Web.Script.Serialization

	Module Program

	Sub Main()

	Const jsonResponse = "{""a"":1,""b"":2,""c"":3,""d"":4,""e"":5}"
	Dim serializer As New JavaScriptSerializer()
	Dim response As Response = serializer.Deserialize(Of Response)(jsonResponse)

AlexArchive / gist:5866012

Last active December 19, 2015 00:00

Git Cheat Sheet

	git remote -v #output remotes
	git remote rm REMOTENAME #remove remote

	git add -A #include deleted files
	git commit -am "message" #add and commit at the same time

	rm -rf .git #Remove git init


	===UniX Hecks

AlexArchive / gist:5883416

Created June 28, 2013 08:54

LINQ Compilation

	//data source
	string[] names = { "ByteBlast", "Shockwave2", "Salmoneus", "Banksy" };

	//query syntax
	var names1 =
	from name in names
	where name.StartsWith("B")
	select name;

	//compiler translates the above into :-

AlexArchive / Problem22

Created July 5, 2013 09:10

Project Euler: Problem 22

	private static IEnumerable<string> LoadNames()
	{
	string names =File.ReadAllText("names.txt");
	return names.Split(',')
	.Select(name => name.Substring(1, name.Length - 2));
	}

	private static int CalculateTotalScore()
	{
	return LoadName().OrderBy(x => x)

Null AlexArchive