Possible Duplicates:
C# -Generic Extension Method
How do you write a C# Extension Method for a Generically Typed Class通用類的擴展方法
是否可以聲明泛型類的擴展方法?
public class NeedsExtension<T>
{
public NeedsExtension<T> DoSomething(T obj)
{
// ....
}
}
http://stackoverflow.com/questions/1825952/c-generic -extension-method – stuartd