MCPDMCPD(70-511)單項選擇題每日一練(2019.05.10)

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You plan to implement a test strategy for the application. 
You need to ensure that the test strategy meets the following requirements: 
Test data can be added to the test project without recompiling. 
Multiple variations of a test can be executed at run time.  
What should you do? （）

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?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You write the following code fragment. (Line numbers are included for reference only.)

You need to ensure that a video file begins to play only when a user clicks Play. 
Which code fragment should you insert at line 06?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You add a ListBox control to the application. The ListBox control is data-bound to an instance of a custom collection class of the Product objects named ProductList. 
You need to ensure that changes to ProductList are automatically reflected in the ListBox control. 
What should you do? （）