Package com.smartgwt.client.widgets.tree

# Interface HasDataChangedHandlers

All Superinterfaces:
  `HasHandlers`

All Known Implementing Classes:
  `ResultTree`, `Tree`

public interface HasDataChangedHandlers extends HasHandlers

- ## Method Summary

  Modifier and Type
  Method
  Description
  `HandlerRegistration`
  `addDataChangedHandler(DataChangedHandler handler)`
  Called when the structure of this tree is changed in any way.

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

  `fireEvent`

- ## Method Details

  - ### addDataChangedHandler

    HandlerRegistration addDataChangedHandler(DataChangedHandler handler)
    Called when the structure of this tree is changed in any way.
    Note that on a big change (many items being added or deleted) this may be called multiple times
    Parameters:
      `handler` - the dataChanged handler
    Returns:
      `HandlerRegistration` used to remove this handler