/// <summary>
/// Commits the changes in the unbound cell where the renderer doesn't support value changed event.
/// </summary>
/// <param name="record">
/// Specifies the corresponding record to commit the cell value.
/// </param>
/// <param name="column">
/// Specifies the corresponding column to commit the cell value.
/// </param>
/// <param name="value">
/// Specifies the cell value to commit it.
/// </param>
public void CommitUnBoundCellValue(object record, GridColumn column, object value)
{
var args = new GridUnboundColumnEventsArgs(UnBoundActions.CommitData, value, column, record, this.DataGrid);
DataGrid.RaiseQueryUnboundValue(args);
}
} // end method DataGridStrikePriceVolumeTable_FilterItemsPopulating
// Populate data of each day's volume for unbound columns.
private void DataGridStrikePriceVolumeTable_QueryUnboundColumnValue(object sender, GridUnboundColumnEventsArgs e)
{
if (e.UnBoundAction != UnBoundActions.QueryData)
return;
var strikePrice = Convert.ToDecimal(e.Record.GetType().GetProperty("StrikePrice")?.GetValue(e.Record));
// Round each volume value which is not null.
for (var nodeCount = 0; nodeCount < _nodeTotalCount; nodeCount++)
if (_strikePriceVolumeRowCollection[nodeCount][0] == strikePrice)
{
var dayVolume = _strikePriceVolumeRowCollection[nodeCount][2 + Convert.ToInt32(e.Column.MappingName)];
/*
* 每日成交量（1手 = 100股）。
* First, round the day volume. Second, convert it to a string representation in a specified format. Then, convert it back to a decimal value. These steps are necessary to keep the specified number of decimal digits without dropping 0.
*/
e.Value = dayVolume == null
? null
: (decimal?) Convert.ToDecimal(decimal.Round((decimal) dayVolume / (Properties.Settings.Default.DayVolumeUnit * 100m), Properties.Settings.Default.DayVolumeDecimalDigits).ToString("N" + Properties.Settings.Default.DayVolumeDecimalDigits));
break;
} // end if
} // end method DataGridStrikePriceVolumeTable_QueryUnboundColumnValue
