如何在自定义控件中实现BaseValidator和IValidator - ASP.Net

I have a custom control that inherits from WebControl and implements IValidator, but I also want to have a property for ValidationGroup. From research, it appears I need to inherit from BaseValidator to do so. Can anybody provide a successfull example from a ASP.Net custom control that implements both BaseValidator and IValidator?I have a custom control that inherits from WebC