You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The application has a window named MainWindow that has a StackPanel control named sp as the root element.
You want to create a Button control that contains a TextBlock control with the "Save" Text property.
You need to create the control dynamically and add the control to sp.
Which code segment should you write in the constructor of the MainWindow class?（）
A.
B.
C.
D.
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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application that displays an image.
You need to ensure that users can stretch and scale the image.
Which control should you use?（）
A. Frame
B. Slider
C. Viewbox
D. ScrollViewer
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You need to ensure that users can view content in a book-reading format that displays two pages at a time.
Which control should you use?（）
A. FlowDocument
B. FlowDocumentReader
C. FlowDocumentPageViewer
D. FlowDocumentScrollViewer
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.)
01sealed class FormSettings :
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. [UserScopedSetting()] [DefaultSettingValue("Please enter your setting.")]
B. [UserScopedSetting()] [SettingsDescription("Description: Please enter your setting.")]
C. [ApplicationScopedSetting()] [DefaultSettingValue("Please enter your setting.")]
D. [ApplicationScopedSetting()] [SettingsDescription("Description: Please enter your setting.")]
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
ElementHost control named elementHost1.
You write the following code segment. (Line numbers are included for reference only.)
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 05?（）
A. elementHost1.PropertyMap.Remove("BackColor"); elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange));
B. elementHost1.PropertyMap.Remove("Background"); elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange));
C. elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange)); elementHost1.PropertyMap.Apply("BackColor");
D. elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange)); elementHost1.PropertyMap.Apply("Background");
You use Microsoft Visual Studio 2010 and Microsoft .
NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a WPF window in the application.
You add the following code segment to the application.
public class ViewModel
{
public CollectionView Data { get; set; }
}
public class BusinessObject
{
public string Name { get; set; }
}
The DataContext property of the window is set to an instance of the ViewModel class.
The Data property of the ViewModel instance is initialized with a collection of BusinessObject objects.
You add a TextBox control to the Window.
You need to bind the Text property of the TextBox control to the Name property of the current item of the CollectionView of the DataContext object.
You also need to ensure that when a binding error occurs, the Text property of the TextBox control is set to N/A .
Which binding expression should you use?（）
A. { Binding Path=Data/Name, FallbackValue='N/A' }
B. { Binding Path=Data.Name, FallbackValue='N/A' }
C. { Binding Path=Data/Name, TargetNullValue='N/A' }
D. { Binding Path=Data.Name, TargetNullValue='N/A' }
You create a Windows client application by using Windows Presentation Foundation (WPF).
The application contains the following code fragment.
You need to assign lbDetails to use the detail data template when btnDetails is clicked.
Which code segment should you write for the click event handler for btnDetails?（）
A. lbDetails.ItemsPanel.FindName("detail",lbDetails);
B. var tmpl = (ControlTemplate)FindResource("detail"); lbDetails.Template = tmpl;
C. var tmpl = (DataTemplate)FindName("detail"); lbDetails.ItemTemplate = tmpl;
D. var tmpl = (DataTemplate)FindResource("detail"); lbDetails.ItemTemplate=tmpl;
You have definded a style in app.xaml
You want to use this style in your application in code behind.
How can you achieve this? （）
A. button1.Style = FindName("A") as Style
B. button1.Style = FindName("B") as Style
C. button1.Style = FindResource("A") as Style
D. button1.Style = FindResource("B") as Style
A. Dependency Property
B. INotifyPropertyChanged
C. net Property
最新试题
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. The application has a window named MainWindow that has a StackPanel control named sp as the root element. You want to create a Button control that contains a TextBlock control with the "Save" Text property. You need to create the control dynamically and add the control to sp. Which code segment should you write in the constructor of the MainWindow class?（）
You are developing a Windows Presentation Foundation (WPF) application for a travel reservation systemYou need to ensure that users can select a range of travel dates.What should you do ?（）
Which of the following examples of the pack URI syntax accesses a file named myImage.jpg in a folder named MyFolder in another assembly named myAssembly? （）
You are developing WPF application for managing student information... btnSort and a DataGrid control named dgStudents on the design surface of the MainWindow.xaml properties : FirstName and LastName. You create the following code segment in the constructor of...The DataGrid control displays the list of students unsorted.You need to ensure that the list of students is sorted by last name.Which code segment should you add to the click event handler of the Button control？（）
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application that displays an image.You need to ensure that users can stretch and scale the image. Which control should you use?（）
You upgrade a Windows Forms application to Microsoft .NET Framework 4. The application was developedby using a previous version of the .NET Framework. The application uses the Code Access Security (CAS) policy for file access. When the application is executed, you receive the following exception: "NotSupportedException: This method uses CAS policy, which has been obsoleted by the .NET Framework." You need to resolve the error. What should you do?（）
You have a custom button, with should have a Property "IsActive", one must be able to bind this Property on a class Property.（）
You use Microsoft .NET Framework 4 to create an application. The application performs resource-intensive calculations that consist of multiple layers of nested looping.The application will be deployed to servers that contain varying hardware configurations. You need to ensure that the application utilizes CPU resources on the server in the most efficient manner. You want to achieve this goal by using the minimum amount of code. What should you do?（）
You use Microsoft Visual Studio 2010 and Microsoft . NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You create a WPF window in the application. You add the following code segment to the application. public class ViewModel { public CollectionView Data { get; set; } }public class BusinessObject { public string Name { get; set; } }The DataContext property of the window is set to an instance of the ViewModel class. The Data property of the ViewModel instance is initialized with a collection of BusinessObject objects. You add a TextBox control to the Window. You need to bind the Text property of the TextBox control to the Name property of the current item of the CollectionView of the DataContext object. You also need to ensure that when a binding error occurs, the Text property of the TextBox control is set to N/A . Which binding expression should you use?（）
You have definded a style in app.xamlYou want to use this style in your application in code behind.How can you achieve this? （）