This document provides an overview of MDI (Multiple Document Interface) applications and menus in Windows Forms. It discusses how MDI applications allow multiple child forms to be opened within a single parent form window. It also describes the different types of menus (main and context), how to create menus using controls like MenuStrip, ToolStripMenuItem and ContextMenuStrip, and other controls like ToolStrip and StatusStrip.

1. Session 6
Slide 1 of 1309/20/13
MDI Applications and Menus

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Module Introduction
Welcome to the module, MDI Applications and Menus.
- MDI applications provide simultaneous access to multiple documents in a single window.
- Menus to navigate through different child forms.
In this module, you will learn about:
+ Multiple Document Interface Applications
+ Menus
+ ToolStrip Control
+ StatusStrip Control

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Document Interfaces
An application can contain multiple forms, which are used for collecting and displaying varied
information.

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MDI Parent Forms
+ An MDI application consists of a parent form and multiple child forms.
+ All the child forms are opened within parent form. Thus, it acts as a container that can
hold all child forms.
The isMdiContainer property of the form can be used to create an MDI form.
this.IsMdiContainer = true;

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MDI Child Forms
The MDI child forms are the sub-forms that are opened within the parent form.

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Properties, Methods, and Events

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Menu System
The menu system in Windows Forms consists of the main menu panel. The main menu panel
consists of menu bars and various sub-menus.

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Menu Structures
There are two types of menus in Windows Forms namely, main menu and context menu.
+ The main menu, also known as anchored menus, appears on the menu bar of the form.
+ Context menu, also known as popup menu, are menus that appear when you click the
right mouse button.

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"MenuStrip" Control
The MenuStrip control helps you to add new menus, modify and reorder existing menus,
and delete old menus. You can also use the access keys, check marks, images, and separator
bars to improve the usability of menus.

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Properties, Methods, and Events
The MenuStrip class is used to create the MenuStrip control and it exists in the
System.Windows.Forms namespace. It is inherited from the ToolStrip class.

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"ToolStripMenultem" Control
The ToolstripMenuItern class provides various properties, which enable you to modify the
appearance and functionality of a menu item.

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"ContextMenuStrip" Control
The ContextMenuStrip control is used to provide a short cut for accessing menu options
displayed on the menu bar. It is similar to the context menu that appears in Microsoft Word
application, when you right-click on the document.

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"Menu" Class
The Menu class allows you to create menus. This class is the base class for MainMenu,
MenuItem, and ContextMenu classes.

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"ToolStrip" Control
You will find it faster and more convenient to use the icons on the toolbar instead of the
menus. In Visual Studio 2005, the ToolStrip control serves the purpose of the toolbar.

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"StatusStrip" Control
The StatusStrip control is used to display useful information about the task being carried
out or various controls in use. It is displayed at the bottom of the form. It can be used to
display a progress bar too.