Bug 165677 folder is not opened by double click
Data explorer pane contains following tree: + Data Sources - Postgres + Data Sets - Header DS - Chart DS + Report Parameters - Id It is common then if you double click on menu item, that is folder for other menu items (submenu), that it is opened. But in BIRT I can click to Data Sources (Data Sets, Report Params) as many times as I want but it never opens the submenu. In other words, when I doubleclick Data Sets, I want to open it and see which data sets are defined.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/views/outline/DesignerOutlinePage.java
public void run( )
					{
						if ( isDispose( ) )
						{
							return;
						}
						getTreeViewer( ).refresh( );
					}
				};
		}
	}
	protected void expandNodeAfterCreation( Object obj )
	{
		if ( obj instanceof IDesignElement )
		{
			IDesignElement element = (IDesignElement) obj;
			getTreeViewer( ).expandToLevel( element.getHandle( getRoot( ).getModule( ) ),
					0 );
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.designer.internal.ui.views.DesignerOutlineEventProcessor.IFactConsumerFactory#isDispose()
	 */
	public boolean isDispose( )
	{
		return getTreeViewer( ).getTree( ).isDisposed( );
	}
}