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/taglib/ParamDefTag.java
writer.write( "  valCtl.value = obj.value;\n" ); 
		writer
				.write( "  var labelCtl = document.getElementById( obj.id + \"_label\");\n" ); 
		writer.write( "  displayCtl.value = labelCtl.innerHTML;\n" ); 
		writer.write( "  displayCtl.name = \"" + displayTextName + "\";\n" ); 
		writer.write( "}\n" ); 
		writer.write( "}\n" ); 
		writer.write( "</script>\n" ); 
		String onClick = "handleParam" + encParamId + "( event )"; 
		int index = 0;
		for ( Iterator iter = selectionList.iterator( ); iter.hasNext( ); )
		{
			ParameterSelectionChoice selectionItem = (ParameterSelectionChoice) iter
					.next( );
			Object value = selectionItem.getValue( );
			try
			{
				
				value = DataUtil.convert( value, paramDef.getDataType( ) );
			}
			catch ( Exception e )
			{
				value = null;
			}
			
			String displayValue = DataUtil.getDisplayValue( value );
			if ( displayValue == null )
				continue;