Microsoft TS: Windows Applications Development with Microsoft .NET Framework 4 認定 070-511 試験問題:

1. You are developing a Windows Presentation Foundation (WPF) application to play audio files. You add a MediaElement control named mediaElementl and a Button control named btnPlayAudio to the design surface. The MediaElement control Source attribute is set to an audio file. The LoadedBehavior attribute is set to Manual.
You add the following code to the main window.
Sub playCoinroand_Executed (ByVal sender As Object,
ByVal e As RoutedEventArgs)
MediaElenient 1.Play ()
End Sub
You set the command of the button to MediaCommands.Play.
You need to ensure that the application will play the audio file when the button is pressed.
What should you add to the constructor of the main window?

A) Dim playCommand As CoinmandBinding =
New CommandBinding(MediaCommands.Play)
AddHandler playCommand.CanExecute,
New CanExecuteRoutedEventHandler(
AddressOf playCommand_Executed)
Me.CommandBindings.Add(playCommand)
B) Dim playCommand As RoutedUICommand = New RoutedUICommand()
AddHandler playCommand.CanExecuteChanged,
New EventHandler(AddressOf playCommand_Executed) Me . CommandBindings .
Add (New CommandBinding (playCommand) )
C) Dim playCommand As CoinmandBinding =
New CoinmandBinding (MediaCommands.Play)
AddHandler playCommand.Executed,
New ExecutedRoutedEventHandler(
AddressOf playCommand_Executed)
Me.CommandBindings.Add(playCommand)
D) Dim piayCommand As RoutedCommand = New RoutedCommand()
AddHandler playCommand.CanExecuteChanged,
New EventHandler(AddressOf playComrnand_Executed)
Me.CommandBindings.Add(New CoinmandBinding (playCommand))

2. You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a custom control named Wheel.
You need to ensure that the Speed property of Wheel can be animated.
What should you do?

A) Declare an animation of the Speed property from within the code-behind file.
B) Declare the Speed property as a dependency property.
C) Implement the System.Windows.Media.Animation.IAnimatable interface with the Wheel class.
D) Inherit the DependencyObject class.

3. You are developing a Windows Presentation Foundation (WPF) application.
You plan to deploy the WPF application by using ClickOnce. The application will be
associated to files that have an extension of .abc.
You need to ensure that when a user opens the application by double-clicking an .abc file,
a TextBlock named txtBlock1 displays the path of the file. Which code should you use?

A) Option A
B) Option C
C) Option D
D) Option B

4. You are developing a Windows Presentation Foundation (WPF) application. You are writing data templates for a calendar.
You must use the Weekend template for weekends and the Weekday template for weekdays. The Window markup is as follows. (Line numbers are included for reference only.)

You need to ensure that the Weekend and Weekday templates are applied correctly to the ListBox control.
Which markup segment should you insert at line 11?

A) <ListBox ItemTemplateSelector=" {StaticResource WeekendSelector}"/>
B) <ListBox ItemTemplateSelector="{Binding WeekendSelector}"/>
C) <ListBox ItemTemplate=" {Binding WeekendSelector} "/>
D) <ListBox ItemTemplate="{StaticResource WeekendSelector} "/>

5. You are developing a Windows Presentation Foundation (WPF) application.
The application configuration file is maintained in source control and must not be modified.
You need to ensure that developers can override individual settings.
Which XML segment should you use in the application configuration file?

A) Option A
B) Option C
C) Option D
D) Option B

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