System.Data.DataRowView.CancelEdit C# (CSharp) Method

        public void CancelEdit()
        {
            DataRow tmpRow = Row;
            if (IsNew)
            {
                _dataView.FinishAddNew(false);
            }
            else
            {
                tmpRow.CancelEdit();
            }
            _delayBeginEdit = false;
        }

 /// <summary>
 /// Запускает форму для редактирования строки.
 /// </summary>
 /// <param name="source"></param>
 private void EditRow(DataRowView source)
 {
     source.BeginEdit();
     Editor.ReBindControlsToDataRow(source);
     if (Editor.ShowDialog() == DialogResult.OK)
     {
         source.EndEdit();
     }
     else
     {
         source.CancelEdit();
     }
 }