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Programming WPF, 2nd Edition
book

Programming WPF, 2nd Edition

by Chris Sells, Ian Griffiths
August 2007
Intermediate to advanced content levelIntermediate to advanced
864 pages
25h 52m
English
O'Reilly Media, Inc.
Content preview from Programming WPF, 2nd Edition

Content Models

Although the different kinds of WPF application types are useful, the core of any presentation framework is in the presentation elements themselves. In presentation systems of old, fundamentally we had "chunks of look and behavior" (often called controls) and "containers of chunks of look and behavior." In WPF, this characterization doesn't really hold up very well. Many elements that provide their own content and behavior can also be containers of elements (and so on). As an example, let's take a look at a Button.

The first thing that may surprise you about a WPF Button object is that you don't need to use a string as the content; it will take any .NET object. You've already seen a string as a button's content (see Example 1-17).

Example 1-17. A button with string content

<Window ...>
  <Button Width="100" Height="100">Hi</Button>
</Window>

However, as Example 1-18 shows, you can also use an image (see Figure 1-11).

Example 1-18. A button with image content

<Window ...>
  <Button Width="100" Height="100">
        <Image Source="tom.png" />
  </Button>
</Window>
A button with image content

Figure 1-11. A button with image content

You can even use an arbitrary control, like a TextBox, as shown in Example 1-19 and Figure 1-12.

Example 1-19. A button with control content

<Window ...>
  <Button Width="100" Height="100">
        <TextBox Width="75">edit me</TextBox>
  </Button>
</Window>

Figure 1-12. A button with control content

Further, ...

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Publisher Resources

ISBN: 9780596510374Supplemental ContentErrata Page