Event is fired when OK button is clicked in drop down. Function takes arguments evt and ui. Use ui.columnKey to get column key for which OK button is clicked. Use ui.eventData to get data about which summary methods are(not) selected. Format of event data is {type = "min"; active: false};. Use ui.owner in order to access the igGridSummaries widget object.
Target Platforms: Windows 8.1, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
