GUI Windows Form C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form
{
        private System.Windows.Forms.CheckBox chkResizeRedraw;
      public Form1() {
            InitializeComponent();
            
      }
    private void FlawedResizing_Paint(object sender, PaintEventArgs e)
    {
            ResizeRedraw = chkResizeRedraw.Checked;
            Pen pen = new Pen(Color.Red, 1);
            e.Graphics.DrawEllipse(pen, new Rectangle(new Point(0, 0),
              this.ClientSize));
            pen.Dispose();        
            
    }
    private void chkResizeRedraw_CheckedChanged(object sender, EventArgs e)
    {
      Invalidate();
    }
    private void InitializeComponent()
    {
            this.chkResizeRedraw = new System.Windows.Forms.CheckBox();
            this.SuspendLayout();
            // 
            // chkResizeRedraw
            // 
            this.chkResizeRedraw.AutoSize = true;
            this.chkResizeRedraw.Location = new System.Drawing.Point(102, 104);
            this.chkResizeRedraw.Name = "chkResizeRedraw";
            this.chkResizeRedraw.Size = new System.Drawing.Size(95, 17);
            this.chkResizeRedraw.TabIndex = 0;
            this.chkResizeRedraw.Text = "ResizeRedraw";
            this.chkResizeRedraw.CheckedChanged += new System.EventHandler(this.chkResizeRedraw_CheckedChanged);
            // 
            // FlawedResizing
            // 
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(292, 266);
            this.Controls.Add(this.chkResizeRedraw);
            this.Name = "FlawedResizing";
            this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
            this.Text = "FlawedResizing";
            this.Paint += new System.Windows.Forms.PaintEventHandler(this.FlawedResizing_Paint);
            this.ResumeLayout(false);
            this.PerformLayout();
    }
      [STAThread]
      static void Main()
      {
        Application.EnableVisualStyles();
        Application.Run(new Form1());
      }
}