我可以从泛型类型 T 继承泛型 class 吗？ 喜欢我的班级<t> : T</t>

Question

What I want to achieve is something like this below, which Visual Studio complains about and I don't know how to achieve it:

public abstract class My_BaseControl<T> : T, IRightBasedUsability
        where T : System.Web.UI.WebControls.WebControl 
{

    // Some methods that I want to have for all 
    //the extended asp.net controls along my application
    //which implements IRightBasedUsability

}

Answer 1

Perhaps c# extension methods are in this case a way to solve your problem.

@see http://msdn.microsoft.com/en-us/library/bb383977.aspx

Eric De Carufel wrote some interesting articles about extension methods and how to manage their scope: http://blog.decarufel.net/2009/02/extension-methods-series-managing-scope.html

Answer 2

You can't inherit from a non-existent type at all, no; that's what you would be doing with the code you've shown.

The closest you can get would be to inherit from the class in your where T clause. The effect would not be much different, anyway.