Package com.smartgwt.client.widgets.tree.events

# Interface HasFolderOpenedHandlers

All Superinterfaces:
  `HasHandlers`

All Known Implementing Classes:
  `EditTree`, `TreeGrid`, `TreePalette`

public interface HasFolderOpenedHandlers extends HasHandlers

- ## Method Summary

  Modifier and Type
  Method
  Description
  `HandlerRegistration`
  `addFolderOpenedHandler(FolderOpenedHandler handler)`
  This method is called when a folder is opened either via the user manipulating the expand/collapse control in the UI or via `openFolder()`.

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

  `fireEvent`

- ## Method Details

  - ### addFolderOpenedHandler

    HandlerRegistration addFolderOpenedHandler(FolderOpenedHandler handler)
    This method is called when a folder is opened either via the user manipulating the expand/collapse control in the UI or via `openFolder()`. You can return `false` to cancel the open.
    Parameters:
      `handler` - the folderOpened handler
    Returns:
      `HandlerRegistration` used to remove this handler