Designer Not Implementing Interface Members

I'm writing a small WinForms application, and am attempting to use the MVP pattern for the first time.

I have a UserControl that implements an interface. I am receiving errors compiling because the designer file (.designer.cs) does not implement the members of the interface that it's User Control does.

I apologize for this being a dumb question, but how does one get around this? I'm assuming it's not standard practice to implement all interface members in the designer code as well as the regular code-behind?