Binding Navigator Delete problem

private void bindingNavigatorDeleteItem_Click(object sender, 
                                                  DataGridViewCellEventArgs e) 
{
   int cRow =  gridEventType.Rows[e.RowIndex];

   //delete row from persisted storage

   //rebind data to persisted storage or remove row directly:
   gridEventType.Rows.RemoveAt(cRow);
}