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?（）
1、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.The application displays a list of books.You wri...
2、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You add a property named ServiceContext to a co...
3、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.The application has multiple data entry windows....
4、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a Windows Forms application.You plan to use a Windows Presentation Foundation (WPF) control of the...
5、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a custom Windows Presentation Foundation (WPF) application.Your environment includes several WPF appl...
6、You use Microsoft .NET Framework 4 to
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You write the following code fragment. (Line num...