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

1. 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 display the number with the regional currency settings.
B) It must be right-aligned.

2. You are developing a Windows Presentation Foundation (WPF) application. The main window of the application is defined by the following markup.
<Grid ShoTJGridLines="True">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDeiinition />
</Grid.ColumnDef initions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RouDefinitions>
<TextBlock Grid.Row="0" HorizontalAlignment="Center">
Products Shipped</TextBlock>
<TextBlock Grid.Row="l" Grid.Column="0">
Quarter K/TextBlock>
<TextBlock Grid.Row="2" Grid.Column-"0">
Quarter 2</TextBlock>
<TextBlock Grid.Row="l" Grid.Coiumn="l">
50000</TextBiock>
<TextBlock Grid.Row="2" Grid.Coluitin="l">
150000</TextBlock> </Grid>
When the application is run, it appears as follows?

You need to ensure that the TextBlock control with the contents "Products Shipped" is horizontally centered on the Grid control. Which markup segment should you add to the TextBlock control?

A) Manipulation.ManipulationParameter""2"
B) Grid.ColumnSpan="2"
C) TextBlock.TextAlignment-"Center"
D) GridView.ColumnCollection="l,2"

3. You use Microsoft .NET Framework 4 to create a Windows Forms application.
You add a new class named Customer to the application. You select the Customer class to
create a new object data source.
You add the following components to a Windows Form:
- A BindingSource component named customerBindingSource that is data-bound to
the Customer object data source.
- A set of TextBox controls to display and edit the Customer object properties. Each TextBox control is data-bound to a property of the customerBindingSource component.
- An ErrorProvider component named errorProvider that validates the input values for each TextBox control.
You need to ensure that the input data for each TextBox control is automatically validated by using the ErrorProvider component.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Implement the validation rules inside the TextChanged event handler of each TextBox control by throwing an exception when the value is invalid.
B) Add the following code segment to the InitializeComponent method of the Windows Form. Me.errorProvider.DataSource = Me.customerBindingSource
C) Add the following code segment to the InitializeComponent method of the Windows Form. Me.errorProvider.DataSource = Me.customerBindingSource.DataSource Me.errorProvider.DataMember = Me.customerBindingSource.DataMember
D) Implement the validation rules inside the setter of each property of the Customer class by throwing an exception when the value is invalid.
E) Implement the validation rules inside the Validating event handler of each TextBox control by throwing an exception when the value is invalid.

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

5. DRAG DROP
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You need to configure the application to meet the following requirements:
- When a TextBox control has focus and no characters, the background color of the TextBox must be Blue. - When the TextBox control loses focus, the background of the TextBox must revert to the original value.
What should you do? (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.)

Solutions: