70-511 무료 덤프문제 온라인 액세스

You are developing a Windows Presentation Foundation (WPF) application. The window has the following markup. (Line numbers are included for reference only.)

You need to ensure that all ListBox controls have a border that matches the background color of the ListBox template.
Which markup segment should you insert at line 15?

• A.<Border Background="\Binding ListBox.Background}">
  <ItemsPresenter />
  </Border>
• B.<Border Background="{Binding ListBox.Background}">
  <ContentPresenter />
  </Border>
• C.<Border Background=" \TemplateBindding ListBox.Background} ">
  <ItemsPresenter />
  </Border>
• D.<Border Background="{TemplateBinding ListBox.Background} ">
  <ContentPresenter />
  </Border>

You are creating a Windows Presentation Foundation (WPF) application.
A control periodically appears to alert the user of status changes within the application.
You need to specify that each time the control appears, it fades out within half a second.
Which markup segment should you add to the Storyboard element of the control?

• A.<DoubleAn^mation Storyboard.rargetProperty="Opacity"
  From="l" To="0" Duration="0:0:.5"
  RepeatBehavior="Forever" />
• B.<DoubleAnimation Storyboard.TargetProperty="Opacity"
  From="0" To=".5" />
• C.<DoubleAnimation Storyboard.TargetProperty="Opacity"
  From"l" To="0" Duration"0:0:.5" />
• D.<DoubleAnimation Storyboard. TargetProperty="Opacity"
  From="1" To="0" Duration="0:0:.5"
  RepeatBehavior="0:0:5" />

You develop a Windows Presentation Foundation (WPF) application. You will use ClickOnce to publish it to a Web server.
You add a Button control to the Windows Form with the following code segment. (Line numbers are included for reference only.)

You need to ensure that the update performs as designed.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A.Insert the following code at line 06. info = updateCode.CheckForDetailedUpdate();
• B.Insert the following code at line 06. updateCode.DownloadFileGroup(null);
• C.Insert the following code at line 09. updateCode.UpdateAsyncCancel();
• D.Insert the following code at line 09. updateCode.Update();

You are developing a Windows Presentation Foundation (WPF) application.
An event triggers a workflow such that a parent control executes the event handlers before the child controls.
You need to ensure that if a parent control's event handler encounters an error, the subsequent handlers are not called.
What should you do?

• A.Use handlers for a bubbling routed event and set the Handled property of the RoutedEventArgs object to True in the Catch portion of a Try-Catch-Finally code block.
• B.Use handlers for a tunneling routed event and mark the event as handled in the Finally portion of a Try-Catch-Finally code block.
• C.Use handlers for a bubbling routed event and mark the event as handled in the case of a problem.
• D.Use handlers for a tunneling routed event and mark the event as handled in the case of a problem.

You are developing a Windows Presentation Foundation (WPF) application with multiple windows.
The majority of the buttons within the application are styled consistently. However, three buttons within the application must be styled differently.
You need to ensure that the application can handle this styling requirement.
What should you do?

• A.Create the styles in the main window resources. Omit the Key property for the default Button style and specify the Key property for the Button style and the three buttons.
• B.Create the styles in the application resources. Omit the Key property for the default Button style and specify the Key property for the Button style and the three buttons.
• C.Create the styles in the main window resources. Specify the TargetType property to be Button for the default style but not for the three buttons.
• D.Create the styles in the application resources. Specify the TargetType property to be Button for the default style but not for the three buttons.