QUESTION 211
You are developing a Windows Presentation Foundation (WPF) application page. The page uses extensive graphics controls and animation that require absolute positioning. You need to select a control to use as a container. Which control should you select?

A.    Canvas
B.    DockPanel
C.    StackPanel
D.    Grid

Answer: A

QUESTION 212
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.    <DoubleAnimation Storyboard.TargetProperty="Opacity" From="0" To=".5" />
B.    <DoubleAn^mation Storyboard.rargetProperty="Opacity" From="l" To="0" Duration="0:0:.5"
RepeatBehavior="Forever" />
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" />

Answer: C

QUESTION 213
You are developing a Windows Presentation Foundation (WPF) application. You pull employee information from an XML file named EmployeeData.xml. The XML file is as follows.

You need to display all the employee information from the XML file in EmployeeList.
Which markup segment should you use?

A.    <Window. Resources>
<XmlDataProvider x:Key=FeedData" Source="EnployeeData.xml" XPath="/Employees" />
</Window.Resources>
B.    <ListBox.Resources>
<XmlDataProvider x:Key="FeedData" Source="EmployeeData.xml" XPath="/Employees/Employee"/>
</ListBox.Resources>
C.    <Window. Resources>
<XmlDataProvider x:Key="FeedDoca" Source="EmployeeData.xml" XPath="/Employees/Employee"/>
</Window.Resources>
D.    <ListBox.Resources>
<XmlDataProvider x:Key="FeedData" Source="EmployeeData.xml” XPath="/Employees" />
</ListBox.Resources>

Answer: A

QUESTION 214
You are developing a Windows Presentation Foundation (WPF) application. Two styles, Blue and Green, are used for Border objects. The two styles have the same values for the CornerRadius and BrushThickness properties and different values for the Background property. You need to define the CornerRadius and BrushThickness settings in either the Blue or the Green style, but not both. What should you do?

A.    Separate Blue and Green into two files. Put the base settings in Blue and use MergedDictionaries. Ensure that the Blue file is second in the list.
B.    Separate Blue and Green into two files. Put the base settings in Blue and use MergedDictionaries. Ensure that the Green file is second in the list.
C.    Put Blue and Green into the same file. Put the base settings in Blue and mark Green as BasedOn Blue.
D.    Put Blue and Green into the same file. Put the base settings in Blue and mark Blue as BasedOn Green.

Answer: C

QUESTION 215
You are developing a Windows Presentation Foundation (WPF) application page. The controls on the page must be enclosed within a single rectangular border. The border must contain an image in the header. You need to select a control to use as a container. Which control should you select?

A.    Border
B.    Rectangle
C.    Expander
D.    GroupBox

Answer: D

QUESTION 216
You are developing a Windows Presentation Foundation (WPF) application. The movement of a control within the application is animated. You need to ensure that the animated control is continually animated in one direction. What should you specify for the easing function of the animations?

A.    BackEase
B.    BounceEase
C.    ElasticEase
D.    SineEase

Answer: D

QUESTION 217
You develop a Windows Presentation Foundation (WPF) application. This application is used to output data trends to customer service representatives. You use threading to keep the UI responsive. You have a function named UpdateUI that updates all of the UI components. You use the following code to update the _Data variable. (Line numbers included for reference only.)

You need to update the user interface without knowing if you are on the UI thread.
Which code segment should you insert at line 06?

A.    If (Me.Dispatcher.CheckAcce33()) Then
Dim [function] = New Action(Addre33Cf UpdateUI)
Dim args() As Object = Nothing
Me.Dispatcher.Beginlnvoke([function], args)
Else
UpdateUI()
End If
B.    If (Me. Dispatcher. CheckAccess())
Then UpdateUI()
Else
Dim (function] = New Action(AddressCf OpdateUI)
Dim args() As Object = Nothing
Me .Dispatcher ,BeginInvoIce ( [function; , args)
End If
C.    Me.Dispatcher.VerifyAccess()
Dim [function] = New Action(AddressCf UpdateUI)
Dim args() As Object = Nothing
Me .Dispatcher .BeginlnvoJce ([function], args)
D.    Me. Dispatcher.VerifyAccess ()
UpdateUI()

Answer: B

QUESTION 218
You are developing a Windows Presentation Foundation (WPF) application. A custom control has a dependency property that is bound to a property of type Int16 on a business layer object. You need to ensure that the bound value always falls within the range of an Int16 value, even if the value that the user enters does not. What should you do?

A.    within the Dependency property’s metadata, specify a callback for coercion.
B.    within the Dependency property’s metadata, specify a callback for validation.
C.    Specify code in the common language runtime (CLR) wrapper to adjust the value if it falls outside the range of an Intl6 value.
D.    Register the property type of the Dependency property as Int 16.

Answer: A

QUESTION 219
You are developing a Windows Presentation Foundation (WPF) application. A window is defined in the following markup segment.

You need to add a Windows Forms Button control to the window programmatically.
Which code segment should you use?

A.    Dim host As WindowsFormsHost = New WindowsFormsHost()
Dim wfButton As System.Windows.Forms.Button =
New System.Windows.Forms.Button()
wfButton.Text = "Button"
host.FindName("Button")
grid1.Children.Add(host)
B.    Dim host As WindowsFormsHost = New WindowsFormsHost()
Dim wfButton As System.Windows.Forms.Button =
New Systern.Windows.Forms.Button()
wfButton.Text = "Button"
host.Child = wfButton
grid1.Children.Add(host)
C.    Dim wfButton As System.Windows.Controls.Button = New System.Windows.Controls.Button() wfButton.
Content = "Button"
grid1.Children.Add(wfButton)
D.    Dim host As WindowsFormsHost = New WindowsFormsHost()
Dim wfButton As System.Windows.Controls.Button =
New System.Windows.Controls.Button()
wfButton.Content = "Button"
grid1.Children.Add(wfButton)

Answer: B

QUESTION 220
You are developing a Windows Presentation Foundation (WPF) application. You add several TextBox controls within a StackPanel control. You next add several Image controls within a second StackPanel control.
During testing, you discover that some of the textboxes do not appear in the proper layout. You need to quickly search for the textboxes and view their properties to identify which ones are incorrect.
What should you do?

A.    Open the QuickWatch window and select the Text Visualizer.
B.    Open the Locals window and select the WPF Tree Visualizer.
C.    Open the Autos window and select the HTML Visualizer.
D.    Open the Watch window and select the XML Visualizer.

Answer: B

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