// Change for non-preferred codes.
private void grid_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
if (!ignoreCellChanges)
{
string newValue = grid[e.ColumnIndex, e.RowIndex].FormattedValue.ToString();
string reason;
QueryEvent.IsPreferredControlCode(eventDB, newValue, out reason);
if (reason != null)
{
((MainFrame)Owner).WarningMessage(reason);
}
}
}