You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. <br /> You add a property named ServiceContext to a control. <br /> You need the value of ServiceContext to flow to the child controls exactly like the value of the DataContext property of the FrameworkElement class. <br /> What should you do? ()
A、 Inherit the control class from the DependencyObject class.
B、 Register a dependency property. In the options settings of the property metadata, specify the Inherits option.
C、 Declare a new property. In the get and set methods of the new property, create an instance of the TraversalRequest class.
D、 Declare a new property. In the get method of the new property call VisualTreeHelper.GetParent. In the set method of the new property, call VisualTreeHelper.GetChild.