| 1. | Serves as the abstract base class for validation controls 用作验证控件的抽象基类。 |
| 2. | An abstract base class that represents a member of a type 表示类型成员的抽象基类。 |
| 3. | An abstract base class that provides functionality for the 的类提供功能的抽象基类。 |
| 4. | Represents the abstract base class from which all 元素从中派生的抽象基类。 |
| 5. | Provides an abstract base class for all options objects 为所有选项对象提供抽象基类。 |
| 6. | Controls for building custom layout engines 抽象基类生成自定义布局引擎。 |
| 7. | Represents the abstract base class from which the classes 类的抽象基类。 |
| 8. | Elements that can be used in an xml digital signature derive 元素从中派生的抽象基类。 |
| 9. | The abstract base class for codedom objects Codedom对象的抽象基类。 |
| 10. | Is an abstract base class that allows multiple implementations 是允许多个实现的抽象基类。 |