TcxCustomHeader.OnSectionChangingSortOrder Event

Occurs before the sort order is changed.

Declaration

property OnSectionChangingSortOrder: TcxSectionChangingSortOrderEvent read; write;

Remarks

The OnSectionChangedSortOrder event occurs before the user changes the sort order of the header control. A user can change the sorting order for a section by clicking it. Handle this event if you wish to reject the order change or need to do something before it changes. For example, you may wish to reject the currently applied sorting mode.

Parameter	Meaning
Sender	The header control, which fired the event.
Section	A section whose sort order has changed.
AOldSortOrder	Previous sort order. Can take the following values: soNone - no sort order is applied; soAscending - ascending sort order is enabled; soDescending - descending sort order is enabled.
ANewSortOrder	New sort order applied. Can take the following values: soNone - no sort order is applied; soAscending - ascending sort order is enabled; soDescending - descending sort order is enabled.
AllowChange	True if new sort order settings are accepted; False if you wish to revert to the previous sort order.

If you need to do something after the sort order has changed, see the OnSectionChangingSortOrder event.