I created my custom controller using LeBlender, it works good on frontend, but in backoffice its throwing an error in my grid as i have my custom model view an it expects LeBlender model and it should be MyClass model.

How to solve this problem in backoffice?

public MyClass : RenderModel
{
    // do some stuff
}

public MyController : LeBlenderController {

      public ActionResult Index(LeBlenderModel model) {
           //do some stuff
      }
}