inherit.cs

public class GridColumnFactory<TModel> : IHideObjectMembers where TModel : class
{
}

public class MyFactory<T> : GridColumnFactory<T> where T : class
{
  public MyFactory() : base(insert_params_here)
  {
  }
  
    public MyFactory(Grid<T> container, ViewContext viewContext, IUrlGenerator urlGenerator)
      : base(container, viewContext, urlGenerator, (IGridColumnContainer<T>) container)
    {
    }
  
}