| 1. | Directive in the user control file or by setting the
指令，或设置控件类定义中的 |
| 2. | Additionally , the main control class must implement the
另外，主控件类必须实现 |
| 3. | The default appearance defined by the control class
由控件类定义的默认外观。 |
| 4. | To create your own control class , inherit from the
若要创建自己的控件类，请从 |
| 5. | Implement interface from a control class only
实现接口（仅限从控件类中） |
| 6. | To inherit from a composite control in a control class library
从控件类库中的复合控件继承 |
| 7. | Data source control classes that implement the
接口的数据源控件类实现 |
| 8. | Locate the constructor for your control class
定位控件类的构造函数。 |
| 9. | Provide this feature in an object - oriented way
派生的相应控件类以面向对象的方式提供此功能。 |
| 10. | In class view , select the control class
在“类视图”中选择控件类( |
