ConsoleSpinner

ConsoleSpinner.cs

static void Main(string[] args)
{
    ConsoleSpinner spin = new ConsoleSpinner();
    Console.Write("Working....");
    while (true) 
    {
        spin.Turn();
    }
}

public class ConsoleSpinner
{
    int counter;
    public ConsoleSpiner()
    {
        counter = 0;
    }
    public void Turn()
    {
        counter++;        
        switch (counter % 4)
        {
            case 0: Console.Write("/"); break;
            case 1: Console.Write("-"); break;
            case 2: Console.Write("\\"); break;
            case 3: Console.Write("|"); break;
        }
        Console.SetCursorPosition(Console.CursorLeft - 1, Console.CursorTop);
    }
}