Techniques learned:

 Routed input event

XAML

Finished some example code about XAML and learned the routed event.

Technique Summary:

1, first I want to make a summary about the hierarchical tree about event in WPF, the relationship are about as following:

 Object

      EventArgs

            RoutedEventArgs

                  inputEventArgs

                              KeyBoardEventArgs

                                          ……

                              MouseEventArgs

                                          ……

                               StylusEventArgs

                            ……

 In WPF, there many routed events. Routed events are events that are designed to work well with a tree of elements. When a routed event is raised, it can travel up or down the visual and logical tree.

2,  XAML is a very usefully tool in WPF, in most cases, it’s used to initialize object and define their properties. Like the constructor in c#.

Code related:

 I: using the XAML programming.

<Window xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation”

Title=”About WPF Unleashed” SizeToContent=”WidthAndHeight”

Background=”OrangeRed”>

    <StackPanel>

        <Label FontWeight=”Bold” FontSize=”20” Foreground=”White”>

            WPF Unleashed (Version 3.0)

        </Label>

        <Label>© 2006 SAMS Publishing</Label>

        <Label>Installed Chapters:</Label>

        <ListBox>

            <ListBoxItem>Chapter 1</ListBoxItem>

            <ListBoxItem>Chapter 2</ListBoxItem>

        </ListBox>

        <StackPanel TextElement.FontSize=”30” TextElement.FontStyle=”Italic”

Orientation=”Horizontal” HorizontalAlignment=”Center”>

            <Button MinWidth=”75” Margin=”10”>Help</Button>

            <Button MinWidth=”75” Margin=”10”>OK</Button>

        </StackPanel>

        <StatusBar>You have successfully registered this product.</StatusBar>

    </StackPanel>

</Window>            

Ii: using the c# programming.

StackPanel panel = new StackPanel();

TextElement.SetFontSize(panel, 30);

TextElement.SetFontStyle(panel, FontStyles.Italic);

panel.Orientation = Orientation.Horizontal;

panel.HorizontalAlignment = HorizontalAlignment.Center;

Button helpButton = new Button();

helpButton.MinWidth = 75;

helpButton.Margin = new Thickness(10);

helpButton.Content = “Help”;

Button okButton = new Button();

okButton.MinWidth = 75;

okButton.Margin = new Thickness(10);

okButton.Content = “OK”;

panel.Children.Add(helpButton);

panel.Children.Add(okButton);

..