Bug 201236 Issue about Allow multiple and duplicate values in Layout preview[0705]
Description: Issue about Allow multiple and duplicate values in Layout preview Build number:2.2.1.v20070827 Steps to reproduce: 1. New sample data source and dataset from CUSTOMERS. 2. New a parameter p1, listbox, dynamic, value field COUNTRY, tick on allow duplicate value, tick on allow multiple values. 3. Insert a data item to Layout, set expression as var values=""; for (i=0;i<params["p1"].value.length;i++) values=values+params["p1"].value[i]+"."; values; 4. In Layout, click Preview and select France. Expected result: Display one France. Actual result: Display several France. I tried the same action but preview in Web viewer and extenal html, the result is only one France. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/context/ViewerAttributeBean.java
Collection parameterList, HttpServletRequest request,
			InputOptions options ) throws ReportServiceException
	{
		Map map = new HashMap( );
		
		for ( Iterator iter = parameterList.iterator( ); iter.hasNext( ); )
		{
			ParameterDefinition parameter = (ParameterDefinition) iter.next( );
			if ( parameter == null )
				continue;
			String paramName = parameter.getName( );
			if ( paramName != null )
			{
				Object paramValue = this.getReportService( )
						.getParameterDefaultValue( design, paramName, options );
				map.put( paramName, paramValue );
			}
		}
		return map;
	}
	/**
	 * get parsed parameters as string.
	 * 
	 * @param parameterList
	 *            Collection
	 * @param request
	 *            HttpServletRequest
	 * @param options
	 *            InputOptions
	 *