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

# Interface GroupTreeChangedHandler

All Superinterfaces:
  `EventHandler`

public interface GroupTreeChangedHandler extends EventHandler

- ## Method Summary

  Modifier and Type
  Method
  Description
  `void`
  `onGroupTreeChanged(GroupTreeChangedEvent event)`
  Callback fired when a `grouping` operation completes, whether it started as a direct call to `groupBy()` or `regroup()` or data changing, including incremental changes.

- ## Method Details

  - ### onGroupTreeChanged

    void onGroupTreeChanged(GroupTreeChangedEvent event)
    Callback fired when a `grouping` operation completes, whether it started as a direct call to `groupBy()` or `regroup()` or data changing, including incremental changes.

    If `changeType` is "groupBy", `ListGrid.groupBy()` should have been called at the beginning of the operation, and `ListGrid.groupByComplete()` will be called immediately before this method. If `changeType` is "regroup", then `ListGrid.regroup()` should have been called at the beginning of the operation.

    Parameters:
      `event` - the event