Bug 142691 Switch between the window of two design file. The display of the binding list is abnormal.
Description: Switch the window of between two design file. The display of the binding list is abnormal. Step to reproduce: please refer to the screenshot Actual result: The first design files binding data set list will display the second ones.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
if ( type == IContentOutlinePage.class )
		{
			Object adapter = getOutlinePage( );
			updateOutLineView( getActivePageInstance( ) );
			return adapter;
		}
		if ( type == DataViewPage.class )
		{
			Object adapter = getDataPage( );
			updateDateView( getActivePageInstance( ) );
			return adapter;
		}
		if ( getActivePageInstance( ) != null )
		{
			return getActivePageInstance( ).getAdapter( type );
		}
		return super.getAdapter( type );
	}
	private void updateDateView( IFormPage activePageInstance )
	{
		if ( dataPage == null )
		{
			return;
		}
		Object adapter = activePageInstance.getAdapter( DataViewPage.class );
		dataPage.setActivePage( (IPageBookViewPage) adapter );
	}
	private void updateOutLineView( IFormPage activePageInstance )
	{
		if ( outlinePage == null )