PictureBox visible and invisible

using System;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class ListText : Form {
 
  private Button choose = new Button();
  private ListBox animalList = new ListBox( );
  private ListBox things = new ListBox( );
  private TextBox text = new TextBox( );
  private PictureBox picture = new PictureBox();
  private PictureBox photo = new PictureBox();
  private CheckBox show = new CheckBox();
  private CheckBox author = new CheckBox();
 
  private Bitmap moon = new Bitmap("winter.jpg");
 
  public ListText( ) {
    Text = "List Text";
    choose.Text = "Choose";
    show.Text = "Show a bitmap";
    author.Text = "Show another bitmap";
 
    Size = new Size(400, 300);
    choose.Size = new Size(100,20);
    text.Size = new Size(150,50);
    photo.Size = new Size(100,100);
 
    choose.Location = new Point(20,30);
    animalList.Location = new Point(30 + choose.Width, 30);
    things.Location = new Point(40 + choose.Width + animalList.Width, 30);
    text.Location = new Point(20, 150);
    photo.Location = new Point(40 + text.Width, 150);
    picture.Location = new Point(60 + text.Width + photo.Width, 150);
    show.Location = new Point(20,70);
    author.Location = new Point(20,110);
 
    animalList.SelectionMode = SelectionMode.MultiSimple; 
    things.SelectionMode = SelectionMode.One;
    text.Multiline = true;                             
    picture.Image = (Image)moon;                       
    picture.Visible = false;     
    photo.Image = Image.FromFile("winter.jpg");
    photo.Visible = false;
    BackColor = Color.White;
    choose.BackColor = Color.Pink;
 
    animalList.Items.Add("A");
    animalList.Items.Add("B");
    animalList.Items.Add("C");
    animalList.Items.Add("D");
    animalList.Items.Add("E");
    things.Items.Add("1");
    things.Items.Add("2");
    things.Items.Add("3");
    things.Items.Add("4");
 
    Controls.Add(animalList);
    Controls.Add(things);
    Controls.Add(choose);
    Controls.Add(text);
    Controls.Add(picture);
    Controls.Add(show);
    Controls.Add(author);
    Controls.Add(photo);
 
    choose.Click += new EventHandler(Choose_Click);
    things.SelectedIndexChanged += new EventHandler(Things_Changed);
    show.CheckedChanged += new EventHandler(Picture_Changed);
    author.CheckedChanged += new EventHandler(Photo_Changed);
  }
 
  protected void Choose_Click(object sender, EventArgs e) {
    for(int i = 0; i < animalList.SelectedItems.Count; i++){
      Console.WriteLine(animalList.SelectedItems[i].ToString());
    }

  }
 
  protected void Things_Changed(object sender, EventArgs e) {
    text.Text = "You selected " + things.SelectedItem;
  }
 
  protected void Picture_Changed(Object sender, EventArgs e) {
    if (show.Checked)
      picture.Visible = true;
    else
      picture.Visible = false;
    Invalidate();
  }
 
  protected void Photo_Changed(Object sender, EventArgs e) {
    if (author.Checked)
      photo.Visible = true;
    else
      photo.Visible = false;
    Invalidate();
  }
  static void Main() {
     Application.Run(new ListText());
  }
}
Related examples in the same category

1.	PictureBox Click event
2.	PictureBox Scroll Text
3.	Load image to ImageBox
4.	PictureBox Demo
5.	SizeMode in PictureBox
6.	Subclass PictureBox
7.	Dragging Images
PictureBox visible and invisible : PictureBox « GUI Windows Form « C# / C Sharp

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