Changing images with c#

Question

Hi,
I am making a slotmachine. I have everything but only need an animation for changing the images. This is what i got(only the code for the animation). I can change 2 images but don't know how to do it with multiple images like 5.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace animatie
    public partial class Form1 : Form
        public Form1()
            InitializeComponent();
            Timer t = new Timer();
            t.Interval = 100;
            t.Tick += new EventHandler(t_Tick);
            t.Start();
        bool one;
        void t_Tick(object sender, EventArgs e)
            Image img;
            if (one) img = imageList1.Images[0];  
            else img = imageList1.Images[1];                      
            one = !one;
            pictureBox1.Image = img;

Answer 1

Since it seems like you have it working for 2 images then expanding it to any # of images is straightforward. It looks like you're trying to animate the spinning wheel on the slot machine so that is the basis I'm working against.  I'm also assuming
you want to stick with the image list but there are other approaches as well.
Firstly make sure your images are all in the image list. Next I would recommend that you move the timer start logic out of your constructor.  You don't want it running when the form is created because it hasn't even been displayed yet.  If you
want the spinning to start as soon as the form is displayed then override the OnLoad and start the timer at that point.  I would recommend that you move this functionality into a separate method because you'll probably want to be able to spin the wheels
by clicking a button as well. 
Since you're using an image list you'll need to keep track of the "current" image.  To do that a simple image index field should be fine.  Each time the timer fires you increment the index by 1.  If it gets to the end of the list
(>= count) then reset it to 0.  Then set the PictureBox image to the image at that index.  This gives you the wrapping logic you want.  It won't give you a smooth transition image though, each image will basically just pop up. 
If you want a smooth transition then you might need to look at using a single image with images on it and the timer is simply having the window viewport move "down" the image in a scrolling fashion.  When it gets to the bottom it loops back
around.  For that kind of implementation a PictureBox is probably not a good idea, you'll want to use a simple custom control that handles its own painting instead.
Since you'll need to do this 3 times (one for each window) you might consider moving the logic into a custom control that represents a single window, the timer logic, image selection and image list.  You can then use 3 instances on your form to emulate
the slot machine.  Note that you'll want to add some randomness to the spinning because if each window spins at the same speed you'll always get the same behavior.  Therefore you should probably have each window randomly decide how long and how fast
to spin to introduce randomness to the spinning.
Michael Taylor
http://blogs.msmvps.com/p3net