MCPDMCPD(70-511)章節(jié)練習(xí)(2019.04.26)

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You add a custom command as a resource. The key of the command is saveCommand. 
You write the following code fragment. (Line numbers are included for reference only.) 

You need to ensure that saveCommand is executed when the user clicks the Button control.
What should you do? （）

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You write the following code fragment.  

You need to ensure that the StringMember property of the data-bound object is updated immediately when the user types the TextBox control. 
Which binding expression should you use?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.  
The application uses the background worker process (BWP).  
When the user clicks a button,
the background worker executes a method named DoCalculations asynchronously. 
You need to implement a progress bar on the user interface (UI) that informs the user of the progress of DoCalculations. 
Which two actions should you perform?（）

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
The application contains a custom control that is used to display customer information. 
You discover that the custom control is not rendering correctly. 
You need to identify the WPF element that is causing the issue. You want to achieve this goal by using the minimum amount of administrative effort. 
What should you do?（）

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?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You create a Button control for the application. 
You need to ensure that the application meets the following requirements: 
When the mouse pointer is over the Button control, the background color of the button is set to red and the Button control appears bigger. 
When the mouse pointer is not over the Button control, the button returns to its original state. 
What should you do?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You use the ClickOnce deployment methodology to distribute the application.  
You need to store application-specific data along with read/write permissions without requiring elevated permissions for the application. 
Where should you store the application data?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
The application contains the following code fragment. 
Hello World 
Ok 
You need to define a style that applies the following properties to the text in the StackPanel object: 
FontSize = 32 
FontWeight = Bold 
Which code fragment should you use?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.  
The application contains a composite user control that includes a TextBox control named txtInput.  
The user control will be hosted in a window and will have handlers for the text-changed event of txtInput.  
You need to ensure that the application meets the following requirements: 
Creates a text-changed event handler named Audit_TextChanged for the txtInput control. 
Executes Audit_TextChanged even when specific handlers mark the event as handled. 
Which code segment should you add to the constructor of the user control?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You write the following code segment.

The TextBox control is data-bound to an instance of the Contact class. You plan to implement an ErrorTemplate in the TextBox control. 
You need to ensure that the validation error message is displayed next to the TextBox control. Which code fragment should you use?（）