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
this.paramDef = BirtUtility.findParameterDefinition( paramDefList,
				param.getName( ) );
		if ( paramDef == null )
			return;
		
		String dataType = ParameterDataTypeConverter.ConvertDataType( paramDef
				.getDataType( ) );
		
		this.pattern = param.getPattern( );
		if ( this.pattern == null )
			this.pattern = paramDef.getPattern( );
		if ( "true".equalsIgnoreCase( param.getIsLocale( ) ) ) 
			this.isLocale = true;
		
		if ( param.getValue( ) != null )
		{
			if ( param.getValue( ) instanceof String )
			{
				
				Object valueObj = DataUtil.validateWithPattern( dataType,
						this.pattern, (String) param.getValue( ), locale,
						isLocale );
				if ( this.paramDef.isMultiValue( ) )
					param.setValue( new Object[]{valueObj} );
				else
					param.setValue( valueObj );
			}
			else if ( this.paramDef.isMultiValue( )
					&& param.getValue( ) instanceof String[] )
			{