问题:
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a custom control named Wheel.
You need to ensure that the Speed property of Wheel can be animated.
What should you do?()
A . Inherit the DependencyObject class.
B . Declare the Speed property as a dependency property.
C . Declare an animation of the Speed property from within the code-behind file.
D . Implement the System.Windows.Media.Animation.IAnimatable interface with the Wheel class.
You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a custom control named Wheel.
You need to ensure that the Speed property of Wheel can be animated.
What should you do?()
● 参考解析
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