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

1. You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You add a property named ServiceContext to a control.
You need the value of ServiceContext to flow to the child controls exactly like the value of the DataContext property of the FrameworkElement class.
What should you do?

A) Inherit the control class from the Dependency-Object class.
B) Declare a new property.
In the get method of the new property call VisualTreeHelper.GetParent.
In the set method of the new property, call VisualTreeHelper.GetChild.
C) Register a dependency property.
In the options settings of the property metadata, specify the Inherits option.
D) Declare a new property.
In the get and set methods of the new property, create an instance of the TraversalRequest
class.

2. You are developing a Windows Presentation Foundation (WPF) application.
The application configuration file is maintained in source control and must not be modified.
You need to ensure that developers can override individual settings.
Which XML segment should you use in the application configuration file?

A) Option B
B) Option A
C) Option D
D) Option C

3. DRAG DROP
You use Microsoft .NET Framework 4 to create a Windows Forms application. The application contains a form named Form1. Form1 contains the following code:

The Form1_DragDrop method populates the picture and the pictureLocation variables, if the content being dropped is a bitmap. Once the variables are populated, the Forml_DragDrop method calls the Invalidate method.
You need to render the contents of the bitmap on the form in the location where the user drops a bitmap file.
What should you add to Form1? (Develop the solution by selecting and ordering the required code snippets. You may not need all of the code snippets.

4. 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.)

5. 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.Controls.Button =
New System.Windows.Controls.Button()
wfButton.Content = "Button"
grid1.Children.Add(wfButton)
B) 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)
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.Forms.Button =
New Systern.Windows.Forms.Button()
wfButton.Text = "Button"
host.Child = wfButton
grid1.Children.Add(host)

Solutions: