com.smartgwt.client.widgets.tree.events

## Interface FolderOpenedHandler

- All Superinterfaces:
    com.google.gwt.event.shared.EventHandler

      public interface FolderOpenedHandler
      extends com.google.gwt.event.shared.EventHandler

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `onFolderOpened(FolderOpenedEvent event)` This method is called when a folder is opened either via the user manipulating the expand/collapse control in the UI or via `TreeGrid.openFolder`.

- - ### Method Detail

    - #### onFolderOpened

          void onFolderOpened(FolderOpenedEvent event)

      This method is called when a folder is opened either via the user manipulating the expand/collapse control in the UI or via `TreeGrid.openFolder`. You can return `false` to cancel the open.
      Parameters:
        `event` - the event