在2.0版本中，所有控件无论有什么样的实际实现过程和用户界面特点，均从同一个基类(basedataboundcontrol类)派生。

In version 2.0, all controls derive from the same base class (the BaseDataBoundControl class), regardless of the actual implementation or user interface characteristics.

youdao

该库还提供基客户端对象类型组件、控件和行为类，可以从这些类进行派生以提供丰富的客户端功能。

The library also provides the base client object types Component, Control, and Behavior classes from which you can derive to provide rich client functionality.

youdao

该库还提供基客户端对象类型组件、控件和行为类，可以从这些类进行派生以提供丰富的客户端功能。

The library also provides the base client object types Component, Control, and Behavior classes from which you can derive to provide rich client functionality.

youdao