drawing windows

Hello,

i am developing a form with two graphic objects and two texts on it. So its like two windows. I am using the drawing namespace and pictureBox item. Unfortinutely the program, when i run it schows me only one window with the text on it. But I want to see 2 windows. What am I doing wrong?

using System;
using System.Drawing;
using System.Drawing.Text;
using System.Drawing.Drawing2D;
using System.Windows.Forms; 

namespace AdvancedDrawingMultilineText
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            this.Invalidate(true);
            this.pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.Fillrectangle01);
            this.pictureBox2.Paint += new System.Windows.Forms.PaintEventHandler(this.Fillrectangle02);
        }
        private void button2_Click(object sender, EventArgs e)
        {
            this.Invalidate(true);
            this.pictureBox1.Paint += new System.Windows.Forms.PaintEventHandler(this.Fillrectangle01t);
            this.pictureBox2.Paint += new System.Windows.Forms.PaintEventHandler(this.Fillrectangle02t);
        }

        private void button3_Click(object sender, EventArgs e)
        {
            //not impotant
            //this.pictureBox2.Paint += new System.Windows.Forms.PaintEventHandler(this.Fillrectangle02);
        }
        private void button4_Click(object sender, EventArgs e)
        {
            //this.draw5();
        }

        private void Fillrectangle01(object sender, PaintEventArgs e)
        {
            Pen itsme = new Pen(Color.Green, 5);
            //Draw 
            int x = 5;
            int y = 5;
            int width = 190;
            int height = 190; 
            rect01 = new Rectangle(x, y, width, height);
            e.Graphics.DrawRectangle(itsme, rect01);
            //Fill 
            int x1 = 5;
            int y1 = 5;
            int width1 = 190;
            int height1 = 190;
            SolidBrush drawBrush = new SolidBrush(Color.Black);
            rect02 = new Rectangle(x1, y1, width1, height1);
            LinearGradientBrush Brush = new LinearGradientBrush(rect02, Color.Violet, Color.White, LinearGradientMode.Horizontal);
            Brush.SetSigmaBellShape(0.5f);
            e.Graphics.FillRectangle(Brush, this.rect02);
            
        }
        private void Fillrectangle01t(object sender, PaintEventArgs e)
        {
            Font drawfont = new Font("Times New Roman", 10);
            SolidBrush drawBrush = new SolidBrush(Color.Black);

            string multiline = "Windows XP umfasst viele neue Features, verbesserte Programme und Tools. Lernen Sie die Neuheiten kennen, und verschaffen Sie sich 1einen Überblick über die im Lieferumfang von Windows XP enthaltenen Programme, Systeme, das Zubehör sowie Kommunikations- und Unterhaltungsprogramme.";
            e.Graphics.DrawString(multiline, drawfont, drawBrush, rect02);
        }

        private void Fillrectangle02(object sender, PaintEventArgs e)
        {
            Pen itsme = new Pen(Color.Green, 5);
            //Draw 
            int x = 215;
            int y = 5;
            int width = 190;
            int height = 190;
            rect03 = new Rectangle(x, y, width, height);
            e.Graphics.DrawRectangle(itsme, rect03);
            //Fill 
            int x1 = 215;
            int y1 = 5;
            int width1 = 190;
            int height1 = 190;
            SolidBrush drawBrush = new SolidBrush(Color.Black);
            rect04 = new Rectangle(x1, y1, width1, height1);
            LinearGradientBrush Brush = new LinearGradientBrush(rect04, Color.DarkViolet, Color.White, LinearGradientMode.Horizontal);
            Brush.SetSigmaBellShape(0.5f);
            e.Graphics.FillRectangle(Brush, this.rect04); 
        }
        private void Fillrectangle02t(object sender, PaintEventArgs e) 
        {
            Font drawfont = new Font("Times New Roman", 10);
            SolidBrush drawBrush = new SolidBrush(Color.Black);

            string multiline = "Windows XP umfasst viele neue Features, verbesserte Programme und Tools. Lernen Sie die Neuheiten kennen, und verschaffen Sie sich 1einen Überblick über die im Lieferumfang von Windows XP enthaltenen Programme, Systeme, das Zubehör sowie Kommunikations- und Unterhaltungsprogramme.";
            e.Graphics.DrawString(multiline, drawfont, drawBrush, rect04);
        }
        /*not impotant
        private void draw4()
        {
            Graphics g = this.CreateGraphics();
            g.FillRectangle(Brushes.Azure, 215, 50, 200, 200);
             
        } 
        private void draw5()
        {
            Graphics g = this.CreateGraphics();
            g.Clear(Color.LightGray); 
        }
        */
        public System.Drawing.Rectangle rect01 { get; set; }
        public System.Drawing.Rectangle rect02 { get; set; }
        public System.Drawing.Rectangle rect03 { get; set; }
        public System.Drawing.Rectangle rect04 { get; set; }    
    }
}