You are creating a Windows Forms application by using the .Net Framework 3.5.You plan to design a composite control for the application.You need to derive the control from a base class that supports templates.What should you do?()
- A、Derive from the Control class.
- B、Derive from the UserControl class.
- C、Derive from the ScrollableControl class.
- D、Derive from the ContainerControl class.
正确答案:A
答案解析:有

微信扫一扫手机做题