August 2007
Intermediate to advanced
864 pages
25h 52m
English
Content preview from Programming WPF, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Menus
Many windows applications provide access to their functionality
through a hierarchy of menus. These are typically presented either as a
main menu at the top of the window, or as a pop-up "context" menu. WPF
provides two menu controls. Menu is
for permanently visible menus (such as a main menu), and ContextMenu is for context menus.
Tip
Menus in pre-WPF Windows applications are typically treated
differently from other user interface elements. In Win32, menus get a
distinct handle type and special event handling provisions. In Windows
Forms, most visible elements derive from a Control base class, but menus do not. This
means that menus tend to be somewhat inflexible—some user interface
toolkits choose not to use the built-in menu handling in Windows
simply to avoid the shortcomings. In WPF, menus are just normal
controls, so they do not have any special features or
restrictions.
Both kinds of menus are built in the same way—their contents
consist of a hierarchy of MenuItem
elements. Example 5-22 shows a typical example.
Example 5-22. A main menu
<Menu> <MenuItem Header="_File"> <MenuItem Header="_New" /> <MenuItem Header="_Open..." /> <MenuItem Header="_Save" /> <MenuItem Header="Sa_ve As..." /> <Separator /> <MenuItem Header="Page Se_tup..." /> <MenuItem Header="_Print..." /> <Separator /> <MenuItem Header="E_xit" /> </MenuItem> <MenuItem Header="_Edit"> <MenuItem Header="_Undo" /> <MenuItem Header="_Redo" /> <Separator /> <MenuItem Header="Cu_t" /> <MenuItem Header="_Copy" /> <MenuItem ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.