Package com.smartgwt.client.widgets.grid.events

# Interface HasGroupStateChangedHandlers

All Superinterfaces:
  `HasHandlers`

All Known Implementing Classes:
  `CalendarView`, `CubeGrid`, `DateGrid`, `EditTree`, `ListGrid`, `ListPalette`, `Menu`, `MenuPalette`, `PickListMenu`, `RecordEditor`, `SelectionTreeMenu`, `TableView`, `TreeGrid`, `TreePalette`

public interface HasGroupStateChangedHandlers extends HasHandlers

- ## Method Summary

  Modifier and Type
  Method
  Description
  `HandlerRegistration`
  `addGroupStateChangedHandler(GroupStateChangedHandler handler)`
  Notification method executed whenever the groupState of this grid changes.

  ### Methods inherited from interface com.google.gwt.event.shared.HasHandlers

  `fireEvent`

- ## Method Details

  - ### addGroupStateChangedHandler

    HandlerRegistration addGroupStateChangedHandler(GroupStateChangedHandler handler)
    Notification method executed whenever the groupState of this grid changes. Group state is accessible via `getGroupState()`, and contains group state information.
    Parameters:
      `handler` - the groupStateChanged handler
    Returns:
      `HandlerRegistration` used to remove this handler