Draw 200 lines with random width

1) You create a small windows form application
2) You create a simple random number generator method
3) You loop 200 times
a) Retrieve a value from the random number generator
b) Draw a line using the value from the random number generator as the length.
4) You're done.

Try some code. If you have issues at that point ask for something more specific related to the code. I actually wanted to see how quickly I could slap a form together to match that in the image link you provided and it took under 1/2 hour so there isn't much code required.

Cheers.

Try adding this to your class. As SAKryukov said it would be better to override the OnPaint event.

protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);
    Random RandomClass = new Random();
    int height = 1;
    for (int i = 0; i < 200; i++)
    {
        height += 2;
        int RandomNumber = RandomClass.Next(11, 111);
        System.Drawing.Graphics my_graph = e.Graphics;
        Point my_point_one = new System.Drawing.Point(10, 2 * (i + 1));
        Point my_point_two = new System.Drawing.Point(RandomNumber, 2 * (i + 1));
        my_graph.DrawLine(System.Drawing.Pens.Blue, my_point_one, my_point_two);
    }
}