Bug 138828 Export data column are disordered
Steps to reproduce: 1.Add a sample data source and a data set with table "CUSTOMERS" 2.Preview in Web Viewer 3.Click "Export data", choose columns "CUSTOMERNAME","PHONE","CITY","STATE" to be exported, click "OK" Expected result: The exported columns is alphabetic order or the same order as selected columns Actual result: The exported columns is disordered. they are "STATE","CITY","CUSTOMERNAME","PHONE".
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
paramValueObj = converter.parse( paramValue, parameterObj
						.getDataType( ) );
			}
			else if ( ParameterAccessor.isDesigner( request )
					&& configVars.containsKey( paramName ) )
			{
				
				String configValue = (String) configVars.get( paramName );
				ReportParameterConverter cfgConverter = new ReportParameterConverter(
						format, Locale.US );
				paramValueObj = cfgConverter.parse( configValue, parameterObj
						.getDataType( ) );
			}
			else
			{
				paramValueObj = task.getDefaultValue( parameterObj.getName( ) );
			}
			params.put( paramName, paramValueObj );
		}
		return params;
	}
	/**
	 * Check whether missing parameter or not.
	 * 
	 * @param task
	 * @param parameters
	 * @return
	 */
	public boolean validateParameters( IGetParameterDefinitionTask task,
			Map parameters )