TS: Windows Applications Development with Microsoft .NET Framework 4 (070-511) Free Practice Test

Question 1

You use Microsoft .NET Framework 4 to create a Windows Forms application.
You plan to use a Windows Presentation Foundation (WPF) control of the UserControl1 type hosted in an ElementHos1 control named elementHost1.
You write the following code segment. (Line numbers are included for reference only.)
01 Public Class UPFInUInforms
02 Public Sub WPFInWInforms()
03 InitializeComponent() 04
05 End Sub
06 Private Sub OnBackColorChange(ByVal sender As Object, ByVal propertyName As [String], ByVal value As Object)
07 Dim host As ElementHost = TryCast(sender, ElementHost)
08 Dim col As System.Drawing.Color = DirectCast(value, System.Drawing.Color)
09 Dim brush As New SolidColorBrush(System.Windows.Media.Color.FromRgb(col,R, col.G, col.B))
10 Dim ucl As UserControll = TryCast(host.Child, UserControll)
11 ucl.Background = brush
12 End Sub
13 End Class
You need to ensure that the application changes the background color of the hosted control when the background color of the form changes.
Which code segment should you insert at line 04?

A. elementHostl.PropertyMap.Add("Background", New PropertyTranslator(OnBackColorChange))
elementHost1.PropertyMap.Apply("Background")

B. elementHostl.PropertyMap.Add("BackColor", New PropertyTranslator(OnBackColorChange)) elementHost1.PropertyMap.Apply("BackColor")

C. elementHostl.PropertyMap.Remove("BackColor") elementHost1.PropertyMap.Add("BackColor", New PropertyTranslator(OnBackColorChange))

D. elementHost1.PropertyMap.Remove("Background") elementHost1.PropertyMap.Add("Background", New PropertyTranslator(OnBackColorChange))

Correct Answer: C

Question 2

You are developing a Windows Presentation Foundation (WPF) application that displays financial data.
The following style is applied to every Label control that displays currency. (Line numbers are included for reference only.)

You need to ensure that the style is updated to meet the following requirements regarding currency:
Which markup segment should you insert at line 06?

A. It must be right-aligned.

B. It must display the number with the regional currency settings.

Correct Answer: A

Question 3

You are developing a Windows Presentation Foundation (WPF) application. The application contains a converter named DateOutputConverter that formats dates.
The window is defined as follows. (Line numbers are included for reference only.)

The window must display the OrderDate value found in shippedOrder. The text box must display the OrderDate formatted by the DateOutputConverter.
You need to ensure that the OrderDate is displayed and formatted correctly.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A. Insert the following code at line 07.
<m:DateCutputConverter x:Xey="internationalDataConverter"/>

B. Insert the following code at line 07.
<m:DateCutputConverter x:Key="DateOutputConverter"/>

C. Insert the following code at line 10.
<TextBox text="{Binding OrderDate}"/>

D. Insert the following code at line 10.
<TextBox text="'Binding OrderDate,
Converter= {StaticRescurce interationalDateConverter)}" DataContext="{StaticResource
ResourceKey=shippedOrder}"/>

Correct Answer: A,D

Question 4

You use Microsoft .NET Framework 4 to create a Windows Presentation Framework (WPF) application.
You plan to create a custom control that contains four text input fields. Each of the text input fields within the control will contain a label.
You need to ensure that the text input fields within the control can be validated by using a regular expression Validator.
Which class should you inherit from?

A. TextBox

B. UIElement

C. TextElement

D. UserControl

Correct Answer: D

Question 5

HOTSPOT
You use Microsoft .NET Framework 4 to create a Windows Presentation Framework (WPF)
application.
The application contains a DockPanel named DockPanel1. DockPanel1 contains a ListBox
named List1 and a Button named Button 1.
End-users discover that when they run the application, their mouse pointer disappears
when they hover over List1.
You run the application in debug mode and open the WPF Tree Visualizer.
You need to identify which property causes the issue.
Which property should you identify? (To answer, select the appropriate property in the
answer area.)

Correct Answer:

Question 6

DRAG DROP
You are developing a Windows Presentation Foundation (WPF) application.
You are creating a screen named NewsList that contains a ListView control. NewsList must meet the following requirements:
NewsList must display data from an object named News.
Each item displayed in NewsList must use a data template named dataTemplatel.
NewsList must be displayed by using a grid that has a maximum of four rows.
---
You need to identify which property to use for each requirement.
What should you identify? (To answer, drag the appropriate properties to the correct requirements. Each property may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Correct Answer:

Question 7

You develop a Windows Presentation Foundation (WPF) application. The application runs
on 64-bit machines only.
The application architects want to store application settings in the registry. The users do not have write access to these settings. These application settings apply to everyone using the application.
You need to read the application settings successfully from the registry.
Which code segment should you use?

A. RegistryKey
*OpenBaseKey{RegistryHive.LocalMachine, RegistryView.Registry64)
*OpenSubKey(@"Sofware\MyProgram")
*GetValue("ConnectionString") ;

B. RegiatryKey
*OpenBaseKey(RegistryHive.LocalMachine. RegistryView.Registry64)
*CreateSubKey(@"Software\MyProgram")
*GetValue("ConnectionString") ;

C. RegistryKey
*OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64)
*OpenSubKey(@"Software\MyProgram")
*GetValue("ConnectionString");

D. RegistryKey
*OpenBaseKey(RegistryHive.CurrentUser, RegistryView.Registry64)
*CreateSubKey(@"Software\MyProgram")
*GetValue("ConnectionString");

Correct Answer: A

Question 8

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The application contains a custom control that is used to display customer Information.
You discover that the custom control is not rendering correctly.
You need to identify the WPF element that is causing the issue.
What should you do?

A. Start the application in debug mode.
Place a breakpoint at the main entry point of the application.
Use the WPF Tree Visualizer tool.

B. Enable IntelliTrace and configure Visual Studio to generate a trace log.
Start the application by double-clicking the executable file (.exe).

C. Start the application in release mode.
Place a breakpoint at the main entry point of the application.
Use the debugger to step through the application code.

D. Enable IntelliTrace and configure Visual Studio to generate a trace log.
Start the application in debug mode.

Correct Answer: A

Question 9

You are developing a Windows Presentation Foundation (WPF) application.
An element binding consistently throws errors because the data retrieval is slow.
You need to ensure that the PresentationTraceSource binding is configured to debug the source of these errors.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two).

A. Add the following markup segment to the window definition.
xmlns: diagnostics=
"clr-namespace:Microsoft.Build.Debugging;
assembly = Microsoft.Build"

B. Add the following markup segment to the problem element,
"diagnostics:ConsoleTraceListener"

C. Add the following markup segment to the window definition.
xmlns:diagnostics=
"clr-namespace:System.Diagnostics;assembly=WindowsBase"

D. Add the following markup segment to the problem element.
"diagnostics: PresentationTraceSources . TraceLevel=High"

Correct Answer: C,D

Question 10

You are developing a Windows Presentation Foundation (WPF) application. The application contains the following markup.

You need to ensure that the Filter combo box is hidden when the expander is collapsed.
What should you do?

A. Add the following DataTrigger element to the ComboBox control.
<DataTrigger Binding= "{Binding ElementName=Products, Path=Visibility}"
Value="Collapsed">
<Setter Property="Expander.IsExpanded"
Value="False"/>
</DataTrigger>

B. Add the following DataTrigger element to the ComboBox control.
DataTrigger Binding=" {Binding ElementName=Products, Path=isExpanded>
"Value="False">
<Setter Property="UIElement.Visibility"
Value="Collapsed"/>
</DataTrigger>

C. Add the following DataTrigger element to the Expander control.
<DataTrigger Binding="{Binding ElementName=Filter, Path=isExpanded} " Value="False">
<Setter Property="UIElementVisibility"
Value="Collapsed" />
</DataTrigger>

D. Add the following DataTrtgger element to the Expander control.
<DataTrigger Binding="{Binding ElementName=Filter, Path=Visibility}= Value="Collapsed">
<Setter Property="Expander.IsExpanded"
Value="False" />
</DataTrigger>

Correct Answer: B

Question 11

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The application uses the drag-and-drop functionality.
You need to ensure that the drag-and-drop operation is stopped when a user moves the cursor outside the boundaries of the application form
Which enumeration member should you use?

A. DragAction.Cancel

B. DragDropEffects.All

C. DragAction.Drop

D. DragDropEffects.None

Correct Answer: A

Question 12

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You write the following code segment. (Line numbers are included for reference only.)

You add the following code fragment within a WPF window control.

You need to ensure that the Contact class contains a business rule to ensure that the ContactName property is not empty or NULL. You also need to ensure that the TextBox control validates the input data.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two).

A. Replace line 01 with the following code segment. Public Class Contact Implements IDataErrorInfo

B. Replace line 01 with the following code segment. Public Class Contact Implements INotifyPropertyChanging

C. Replace line 01 with the following code segment. Public Class Contact Inherits ValidationRule

D. Add the following code segment at line 03. Public Event PropertyChanging As PropertyChangingEventHandler Modify line 08 with the following code segment: Set If Me.PcopertyChanging <> Nothing Then Proper:tyChanging(Me, New PropertyChangingEventArgs("ContactName")) End If If String. IsNull OrEmpty(value) Then Throw New ApplicationExceptionf'Contact name is required") End If contactNaroe = value End Set

E. Add the following code segment at line 12. Public Readonly Property [Error] () As String Get Throw New Exception( string.Empty ) End Get End Property Public Default Readonly Property Item(columnName As String) As String Get If columnName = "ContactName" AndAlso String.IsNullOrEmpty(Me.ContactName) Then Return "Contact name is re quired" End If Return Nothing End Get End Property

Correct Answer: A,E

Question 13

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 (this.Dispatcher.CheckAccess() )
UpdateUI ();
}
else
{
var function = new Action(UpdateUI);
this. Dispatcher.ReginInvoice(function, null);
}

B. this.Dispatcher.VerifyAccess();
var function = new Action(UpdateUI);
this. Dispatcher.BecginInvoke{function, null);

C. if (this.Dispatcher. CheckAccess ();
{
var function = new Action (Updated);
this.Dispatcher.ReginInvoke(function, null);
}
else
{ UpdateUI(); }

D. this.Dispatcher.VerifyAccess();
UpdateUI() ;

Correct Answer: A

Question 14

You use Microsoft .NET Framework 4 to create a Windows Forms application.
You write the following code segment. (Line numbers are included for reference only.)
01 NotInheritable Class FormSettings
02 Inherits ApplicationSettingsBase 03
04 Public Property Description() As [String]
05 Get
06 Return DirectCast(He("Description"), [String])
07 End Get
08 Set
09 Me("Description") -value
10 End Set
11 End Property
12 End Class
You need to ensure that the first time each user opens the application, a text field displays the following message: "Please enter your setting."
Which code segment should you insert at line 03?

A. <ApplicationScopedSetting()>
<DefaultSettingValue("Please enter your setting.")>

B. <UserScopedSetting()>
<SettingsDescription("Description: Please enter your setting.")>

C. <UserScopedSetting() >
<DefaultSettingValue("Please enter your setting.")>

D. <ApplicationScopedSetting()>
<SettingsDescription("Description: Please enter your setting.")>

Correct Answer: C

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Microsoft TS: Windows Applications Development with Microsoft .NET Framework 4 (070-511) Free Practice Test