C# 4 and .NET 4

WPF ❘ ChaPTer 35 cOre wpf
items Controls
The ItemsControl class contains a list of items that can be accessed with the Items property. Classes that
are derived from ItemsControl are shown in the following table.
iTemsConTrol
Menu ContextMenu
StatusBar
TreeView
ListBox
ComboBox
TabControl
DataGrid
desCriPTion
The classes Menu and ContextMenu are derived from the abstract base class
MenuBase. You can offer menus to the user by placing MenuItem elements in the
items list and associating commands.
The StatusBar control is usually shown at the bottom of an application to give
status information to the user. You can put StatusBarItem elements inside a
StatusBar list.
For a hierarchical display of items, you can use the TreeView control.
ListBox, ComboBox, and TabControl have the same abstract base class,
Selector. This base class makes it possible to select items from a list. The ListBox
displays the items from a list. The ComboBox has an additional Button control
to display the items only if the button is clicked. With TabControl, content can be
arranged in tabular form.
The DataGrid control is a customizable grid that displays data. This control is new
with .NET 4 and is discussed in detail in the next chapter.
headered items Controls
HeaderedItemsControl is the base class of controls that include items but also has a header. The
class HeaderedItemsControl is derived from ItemsControl.
Classes that are derived from HeaderedItemsControl are listed in the following table.
headerediTemsConTrol
MenuItem
TreeViewItem
ToolBar
desCriPTion
The menu classes Menu and ContextMenu include items of the MenuItem
type. Menu items can be connected to commands, as the MenuItem class
implements the interface ICommandSource.
The TreeView class can include items of type TreeViewItem.
The ToolBar control is a container for a group of controls, usually
Button and Separator elements. You can place the ToolBar inside a
ToolBarTray that handles rearranging of ToolBar controls.
decoration
Adding decorations to a single element is done
with the Decorator class. Decorator is a base
class that has derivations such as Border,
Viewbox, and BulletDecorator. Theme elements
such as ButtonChrome and ListBoxChrome are
also decorators.
The following example demonstrates a Border,
Viewbox, and BulletDecorator, as in
Figure 35-12.
figure 35-12
The Border class decorates the Children element by adding a border around it. You can define a brush and
the thickness of the border, the background, the radius of the corner, and the padding of its children:
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