Bug 146790 Help text/help text key for cascading parameter group is not supported
Steps to reproduce: 1.New a cascading parameter group 2.Switch to Properties, select the cascading parameter group 3.Set help text to "helpme" 4.Preview Expected result: Help text appears when hovering over the cascading parameter group name in Parameter input dialog Actual result: Help text/help text key is not supported
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
columns.add( exportedColumn );
			}
			ExportedResultSet exportedResultSet = new ExportedResultSet(
					queryName, columns );
			ret.add( exportedResultSet );
		}
		return ret;
	}
	/**
	 * Gets the report design name from the input options.
	 * 
	 * @param options
	 *            the input options
	 * @return the report design name if the request contains a valid name,
	 *         otherwise null
	 */
	private String getReportDesignName( InputOptions options )
	{
		String reportDesignName = null;
		if ( options != null )
		{
			HttpServletRequest request = (HttpServletRequest) options
					.getOption( InputOptions.OPT_REQUEST );
			if ( request != null )
			{
				ViewerAttributeBean attrBean = (ViewerAttributeBean) request
						.getAttribute( IBirtConstants.ATTRIBUTE_BEAN );
				assert attrBean != null;
				reportDesignName = attrBean.getReportDesignName( );
				if ( reportDesignName != null )