Provides data for the TreeList.CustomDrawFooterCell event.
The TreeList.CustomDrawFooterCell event gives you the ability to paint footer cells using custom draw. The basic information required to paint an element is supplied by the CustomDrawFooterCellEventArgs class via properties inherited from the CustomDrawEventArgs class. These properties allow you to obtain footer cell specific data such as the column under which it is displayed, the summary value which is about to be displayed within it, etc.
Instances of the CustomDrawFooterCellEventArgs class are automatically created, modified and passed to TreeList.CustomDrawFooterCell event handlers.