internal bool TryAggregate(TAggregateType AggregateType, int colIndex, out double?ResultValue)
{
return(DataState.TryAggregate(AggregateType, colIndex, out ResultValue));
}
/// <summary>
/// This method is used by the "AGGREGATE" tag in a FlexCel report to calculate the mximum/minimum/average/etc of
/// the values in the table. If you don't implement this method, FlexCel will still calculate those values by looping
/// through the dataset, but if you have a faster way to do it (like with a "select max(field) from table") then implement this
/// method and return true.
/// </summary>
/// <param name="aggregateType">Which operation to do on the dataset. (Max/Min/etc)</param>
/// <param name="colIndex">Index of the filed in which we want to aggregate.</param>
/// <param name="resultValue">Returns the result of the operation in the dataset.</param>
/// <returns>True if this method is implemented, false if not. Note that even if we return false here,
/// FlexCel will still calculate the aggregate by looping through all the records.</returns>
public virtual bool TryAggregate(TAggregateType aggregateType, int colIndex, out double?resultValue)
{
resultValue = 0;
return(false);
}