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
};
		getTreeViewer( ).addDragSupport( ops,
				transfers,
				new DesignerDragListener( getTreeViewer( ) ) );
		transfers = new Transfer[]{
			TemplateTransfer.getInstance( )
		};
		DesignerDropListener dropListener = new DesignerDropListener( getTreeViewer( ) );
		
		
		
		
		
		
		
		
		
		
		dropListener.addDropConstraint( CascadingParameterGroupHandle.class,
				new IDropConstraint( ) {
					public int validate( Object transfer, Object target )
					{
						return RESULT_NO;
					}
				} );
		
		
		dropListener.addDropConstraint( ScalarParameterHandle.class,
				new IDropConstraint( ) {
					public int validate( Object transfer, Object target )