class MyDataGridView : DataGridView, ICloneable
    {
        public object Clone()
        {
            return OnClone();
        }
        public virtual object OnClone()
        {
            var res = new DataGridView();
            .............
                
            return res;
        }
    }

  private DataGridView GetClone(DataGridView dataGrid)
        {
            var res = new DataGridView();
            .................
            return res;
        }