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Microsoft 70-511 Exam Syllabus Topics:

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

1. You are developing a Windows Presentation Foundation (WPF) application that displays opportunities from List<T> named Leads, where T is a class named Lead. The Lead class contains the properties Title and Revenue.
You add a DataGrid control named dgQualifiedLeads to the MainWindow.xaml file. You set the ItemSource property of dgQualifiedLeads to Leads as follows. (Line numbers are included for reference only.)

You need to ensure that CollectionViewSource is used to filter the list to display only Lead objects with revenue of more than $1,000.
What should you do?

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

2. You are developing a Windows Presentation Foundation (WPF) application.
The application is bound to a data source.
You need to ensure that the style of controls is bound to values retrieved from the data source.
What should you do?

A) Create the style and specify the BasedOn attribute.
B) Create the style and specify the TargetType attribute.
C) Create a Trigger element within the style that specifies the property value as the bound property.
D) Create a DataTrigger element within the style that specifies the path to the bound property.

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a
Windows Presentation Foundation (WPF) application.
The application contains a ListBox control named IbxItems that is data-bound to a
collection of objects. Each object has a DisplayValue property.
You add a Button control to the application.
You need to ensure that the Content property of the Button control is data-bound to the
DisplayValue property of the selected item of IbxItems.
Which binding expression should you use?

A) {Binding ElementName= IbxItems, Source=SelectedItem, Path=DisplayValue}
B) {Binding ElementName=IbxItems, Path=SelectedItem.DisplayValue}
C) {Binding Source=lbxItems, Path=SelectedItem.DisplayValue}
D) {Binding Source=lbxItems, ElementName=SelectedItem, Path=DisplayValue}

4. You are developing a Windows Presentation Foundation (WPF) application to play audio files. You add a MediaElement control named mediaElementl and a Button control named btnPlayAudio to the design surface. The MediaElement control Source attribute is set to an audio file. The LoadedBehavior attribute is set to Manual.
You add the following code to the main window.
void playCommand_Executed(object sender, RoutedEventArgs e) {
mediaElementl.Play();
} You set the command of the button to MediaCommands.Play.
You need to ensure that the application will play the audio file when the button is pressed.
What should you add to the constructor of the main window?

A) RoutedUICommand playCommand = new RoutedUICommand(); playCommand.CanExecuteChanged += new EventHandler(playCommand_Executed); this.CommandBindings.Add(new CommandBinding(playCommand));
B) CommandBinding playCommand = new CommandBinding(MediaCommands.Play); playCommand.Executed += new ExecutedRoutedEventHandler(playCommand_Executed); this.CommandBindings.Add(playCommand);
C) CommandBinding playCommand = new CommandBinding(MediaCommands.Play); playCommand.CanExecute += new CanExecuteRoutedEventHandler(playCommand_Executed); this.CommandBindings.Add(playCommand);
D) RoutedCommand playCommand = new RoutedCommand(); playCommand.CanExecuteChanged += new EventHandler(playCommand_Executed); this.CommandBindings.Add(new CommandBinding(playCommand));

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

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