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==MainMenu.MenuItems==

<source lang="csharp">

using System;
using System.Windows.Forms;

class FormChangeSize : Form {
MainMenu MyMenu;

public FormChangeSize() {
Text = "Adding a Main Menu";
MyMenu = new MainMenu();

MenuItem m1 = new MenuItem("File");
MyMenu.MenuItems.Add(m1);

MenuItem m2 = new MenuItem("Tools");
MyMenu.MenuItems.Add(m2);

MenuItem subm1 = new MenuItem("Open");
m1.MenuItems.Add(subm1);

MenuItem subm2 = new MenuItem("Close");
m1.MenuItems.Add(subm2);

MenuItem subm3 = new MenuItem("Exit");
m1.MenuItems.Add(subm3);

MenuItem subm4 = new MenuItem("Coordinates");
m2.MenuItems.Add(subm4);

MenuItem subm5 = new MenuItem("Change Size");
m2.MenuItems.Add(subm5);

MenuItem subm6 = new MenuItem("Restore");
m2.MenuItems.Add(subm6);

subm4.Click += MMCoordClick;
subm5.Click += MMChangeClick;
subm6.Click += MMRestoreClick;

Menu = MyMenu;
}

[STAThread]
public static void Main() {
FormChangeSize skel = new FormChangeSize();

Application.Run(skel);
}

protected void MMCoordClick(object who, EventArgs e) {
Console.WriteLine("Top:"+Top);
Console.WriteLine("Left:"+Left);
Console.WriteLine("Bottom:"+Bottom);
Console.WriteLine("Right:"+Right);

}

protected void MMChangeClick(object who, EventArgs e) {
Width = Height = 200;
}

protected void MMRestoreClick(object who, EventArgs e) {
Width = Height = 300;
}

}

</source>

==new MainMenu()==

<source lang="csharp">
/*
C#: The Complete Reference
by Herbert Schildt
Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Add a Main Menu.

using System;
using System.Windows.Forms;

public class MenuForm : Form {
MainMenu MyMenu;

public MenuForm() {
Text = "Adding a Main Menu";

// Create a main menu object.
MyMenu = new MainMenu();

// Add top-level menu items to the menu.
MenuItem m1 = new MenuItem("File");
MyMenu.MenuItems.Add(m1);

MenuItem m2 = new MenuItem("Tools");
MyMenu.MenuItems.Add(m2);

// Create File submenu
MenuItem subm1 = new MenuItem("Open");
m1.MenuItems.Add(subm1);

MenuItem subm2 = new MenuItem("Close");
m1.MenuItems.Add(subm2);

MenuItem subm3 = new MenuItem("Exit");
m1.MenuItems.Add(subm3);

// Create Tools submenu
MenuItem subm4 = new MenuItem("Coordinates");
m2.MenuItems.Add(subm4);

MenuItem subm5 = new MenuItem("Change Size");
m2.MenuItems.Add(subm5);

MenuItem subm6 = new MenuItem("Restore");
m2.MenuItems.Add(subm6);

// Add event handlers for the menu items.
subm1.Click += new EventHandler(MMOpenClick);
subm2.Click += new EventHandler(MMCloseClick);
subm3.Click += new EventHandler(MMExitClick);
subm4.Click += new EventHandler(MMCoordClick);
subm5.Click += new EventHandler(MMChangeClick);
subm6.Click += new EventHandler(MMRestoreClick);

// Assign the menu to the form.
Menu = MyMenu;
}

[STAThread]
public static void Main() {
MenuForm skel = new MenuForm();

Application.Run(skel);
}

// Handler for main menu Coordinates selection.
protected void MMCoordClick(object who, EventArgs e) {
// Create a string that contains the cooridinates.
string size =
String.Format("{0}: {1}, {2}\n{3}: {4}, {5} ",
"Top, Left", Top, Left,
"Bottom, Right", Bottom, Right);

// Display a message box.
MessageBox.Show(size, "Window Coordinates",
MessageBoxButtons.OK);
}

// Handler for main menu Change selection.
protected void MMChangeClick(object who, EventArgs e) {
Width = Height = 200;
}

// Handler for main menu Restore selection.
protected void MMRestoreClick(object who, EventArgs e) {
Width = Height = 300;
}

// Handler for main menu Open selection.
protected void MMOpenClick(object who, EventArgs e) {

MessageBox.Show("Inactive", "Inactive",
MessageBoxButtons.OK);
}

// Handler for main menu Open selection.
protected void MMCloseClick(object who, EventArgs e) {

MessageBox.Show("Inactive", "Inactive",
MessageBoxButtons.OK);
}

// Handler for main menu Exit selection.
protected void MMExitClick(object who, EventArgs e) {

DialogResult result = MessageBox.Show("Stop Program?",
"Terminate",
MessageBoxButtons.YesNo);

if(result == DialogResult.Yes) Application.Exit();
}
}

</source>

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