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/api/IViewerReportService.java
/**
	 * Get parameter selection list
	 * 
	 * @param design
	 * @param options
	 * @param paramName
	 * @return a Collection of IParameterSelectionChoice
	 * @throws ReportServiceException
	 */
	Collection getParameterSelectionList( IViewerReportDesignHandle design,
			InputOptions options, String paramName )
			throws ReportServiceException;
	/**
	 * Get the default value for a parameter
	 * 
	 * @param design
	 * @param parameterName
	 * @param options
	 * @return
	 * @throws ReportServiceException
	 */
	Object getParameterDefaultValue( IViewerReportDesignHandle design,
			String parameterName, InputOptions options )
			throws ReportServiceException;
	/**
	 * Get a collection of parameter handles
	 * 
	 * @param design
	 * @param options
	 * @return a Collection of ParameterHandle