Bug 145992 [regression] drill through to report document with toc in target does not work properly
steps to reproduce: - create 1st report - add a report element with toc entry - preview in viewer - create 2nd report - add a drill through link to the report document expected behavior: - drill through can be added actual behavior: - when select toc in target, exception was thrown out
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HyperlinkBuilder.java
false,
				true,
				"*.rptdocument" ); 
	}
	private void createDrillthroughSelectTargetAnchor( Composite container )
	{
		final Group group = new Group( container, SWT.NONE );
		group.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		group.setText( Messages.getString( "HyperlinkBuilder.DrillThroughStep2" ) ); 
		group.setLayout( new GridLayout( ) );
		targetBookmarkButton = new Button( group, SWT.RADIO );
		targetBookmarkButton.setText( Messages.getString( "HyperlinkBuilder.DrillThroughTargetBookmark" ) ); 
		targetBookmarkButton.addSelectionListener( new SelectionListener( ) {
			public void widgetSelected( SelectionEvent e )
			{
				initAnchorChooser( targetReportHandle, false );
			}
			public void widgetDefaultSelected( SelectionEvent e )
			{
			}
		} );
		tocButton = new Button( group, SWT.RADIO );
		tocButton.setText( Messages.getString( "HyperlinkBuilder.DrillThroughTargetToc" ) ); 
		tocButton.addSelectionListener( new SelectionListener( ) {
			public void widgetSelected( SelectionEvent e )
			{
				initAnchorChooser( targetReportHandle, true );
			}
			public void widgetDefaultSelected( SelectionEvent e )
			{