Microsoft TS: Windows Applications Development with Microsoft .NET Framework 4 Sample Questions:

1. You are developing a Windows Presentation Foundation (WPF) application.
The application contains stylized body text and heading test. The heading text is a slight variation of the body text.
You need to ensure that if the body text changes, the heading text automatically inherits those changes.
What should you do?

A) Set the BasedOn property of the heading style to point to a static resource for the body text style.
B) Set the Key property of the heading style to start with the name of the body text style.
C) Set the Value property of the style setter to point to a static resource.
D) Set the TargetType property of the heading style to TextBlock.

2. You are developing a Windows Presentation Foundation (WPF) application.
You build a dictionary that implements INotifyPropertyChanged. You want to use an indexer to bind to the UI. The relevantimplementation of the dictionary is as follows. (Line numbers are included for reference only.)

You need to ensure that the PropertyChanged event is triggered so that the UI is updated if you modify the collection using theindexer.
Which code should you insert at line 17?

A) RaiseEvent PropertyChanged(Me,
New PropertyChangedEventArgs("Me"))
B) RaiseEvent PropertyChanged(Me,
New PropertyChangedEventArgs("Item()"))
C) RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("Item"))
D) RaiseEvent PropertyChanged(Me,
New PropertyChangedEventArgs("Me()"))

3. You are developing a Windows Presentation Foundation (WPF) application.
The application contains the following code in the code-behind file for an application window. (Line numbers are included for reference only.)
01 Dim stack As StackPanel = New StackPanel() 02 Content = stack 03 For i As Integer = 0 To 9 04 Dim btn As Button = New Button () 05 btn.Name = Convert.ToChar (Asc("A") + i) .ToString () 06 btn.Content - btn.Name "says" "Click me1" 07 08 Next
You need to ensure that all of the Button controls that are defined in this code segment appear in the application window.
Which code segment should you insert at line 07?

A) Content = New Button ()
With {Name = (Asc("A") + i) .ToString(), .
Content = (i & " says Click me'").ToString()}
B) stack.Children.Add (btn)
C) stack.Children.Insert (i + 1, btn)
D) Content = btn

4. You are developing a Windows Presentation Foundation (WPF) application. The application uses a DockPanel control with its HorizontalAlignment property set to Left to divide the main window into three distinct columns. Each column is a panel that is responsible for the layout of its own controls.
You need to reverse the order of the columns.
What should you do?

A) set the DockPanel.Dock property to Right on each of the panels.
B) set the LayoutTransform property to Identity on the DockPanel.
C) Set the HorizontalAlignment property to Right on the DockPanel.
D) Set the FlowDirection property to RightToLeft on each of the panels.

5. You are developing a Windows Presentation Foundation (WPF) application to display service cases by category in a ListBox You create a class named Case with the properties Description and Category, as follows.

You bind to the IstService control a static resource named ServiceCases.
You need to ensure that the service cases are grouped by category.
What should you do in the MainWindow.xaml file?

A) Add the following markup segment to ListBox.Binding.
<ListBox.BindingGroup>
<BindlngGroup Name="Category"/>
</ListBox.BindingGroup>
B) Add the following markup segment to DockPanel.Binding.
<DockPanel.BindingGroup>
<BindingGroup Name="Category">
</DockPanel.BindingGroup>
C) Add the following markup segment to CollectionViewSource.
<CollectionViewSource.GroupDescriptions>
<dataPropertyGroupDescription
PropertyName="Category"/></CollectionViewSource.GroupDescripcion">
D) Add the following markup segment to CollectionViewSource.
<CollectionViewSource.GroupDescriptions/>

Solutions: