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/BirtViewerReportService.java
import org.eclipse.birt.report.engine.api.IReportDocument;
import org.eclipse.birt.report.engine.api.IReportRunnable;
import org.eclipse.birt.report.engine.api.IScalarParameterDefn;
import org.eclipse.birt.report.engine.api.ReportParameterConverter;
import org.eclipse.birt.report.engine.api.TOCNode;
import org.eclipse.birt.report.model.api.ScalarParameterHandle;
import org.eclipse.birt.report.service.api.ExportedColumn;
import org.eclipse.birt.report.service.api.ExportedResultSet;
import org.eclipse.birt.report.service.api.IViewerReportDesignHandle;
import org.eclipse.birt.report.service.api.IViewerReportService;
import org.eclipse.birt.report.service.api.InputOptions;
import org.eclipse.birt.report.service.api.ReportServiceException;
import org.eclipse.birt.report.service.api.ToC;
import org.eclipse.birt.report.soapengine.api.Column;
import org.eclipse.birt.report.soapengine.api.ResultSet;
public class BirtViewerReportService implements IViewerReportService
{
	public BirtViewerReportService( ServletConfig conf )
	{
		try
		{
			ReportEngineService.initEngineInstance( conf );
		}
		catch ( BirtException e )
		{
			
			e.printStackTrace( );
		}
	}
	public String runReport( IViewerReportDesignHandle design,