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
* 
	 * @param input
	 *            the serialized string
	 * @throws DesignFileException
	 */
	public void setInputString( String input ) throws DesignFileException
	{
		setInput( ModuleUtil.deserializeAction( input ) );
	}
	/**
	 * Returns the serialized result action.
	 * 
	 * @return the serialized result action
	 * @throws IOException
	 */
	public String getResultString( ) throws IOException
	{
		return ModuleUtil.serializeAction( (ActionHandle) getResult( ) );
	}
	/**
	 * Set radio members enable, and others radio's members disable.
	 * 
	 * @param container
	 * @param radio
	 * @param enable
	 */
	private void selectRadio( Composite container, Button radio )
	{
		Control[] children = container.getChildren( );
		boolean isChoiceChild = false;