ChapterÂ 8.Â Styles
In a word-processing document, a style is a set of properties to be applied to ranges of content (e.g., text, images, etc.). For example, the name of the style I'm using now is called Normal,Body,b and for this document in prepublication, that means a font family of Times, a size of 10, and full justification. Later in the document, I'll be using a style called Code,x,s, which will use a font family of Courier New, a size of 9, and left justification. Styles are applied to content to produce a certain look when the content is rendered.
In WPF, a style is also a set
of properties applied to content used for visual rendering, like setting
the font weight of a
Button control. In
addition to the features in word-processing styles, WPF styles have
specific features for building applications, including the ability to
apply different visual effects based on user events. All of these features
come without the need to build a custom control (although that's still a
useful thing to be able to do, as discussed in ChapterÂ 18).
As an example of how styles can make themselves useful in WPF, let's look at a simple implementation of tic-tac-toe (see ExampleÂ 8-1).
ExampleÂ 8-1.Â A simple tic-tac-toe layout
<!-- Window1.xaml --> <Window x:Class="TicTacToe.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="TicTacToe" Height="300" Width="300"> <!-- the black background lets the tic-tac-toe ...