Set AutoSum property on sorting field into Query with x++

static void Job2(Args _args)
{
SysReportRun sysReportRun;
Args args = new Args(reportstr(SysReportAuto));
People people;
SysQueryRun sysQueryRun;
Query query = new Query();
QueryBuildDataSource queryBuildDataSource;
Report report;
ReportDesign reportDesign;
 ReportAutoDesignSpecs reportAutoDesignSpecs;
ReportSection reportSection;
Object reportControl;
ReportRealControl reportRealControl;
;  
//Init reportRun sysReportRun = classfactory.reportRunClass(args);
sysReportRun.init();  
//Setup group total field(s) with autoSum and autoHeader
queryBuildDataSource = query.addDataSource( tablenum(people) );
queryBuildDataSource.addSortField( fieldnum(people, Salary) );
queryBuildDataSource.autoSum(1, true); 
//Autosum for 1st sort field
queryBuildDataSource.addSortField( fieldnum(people, MyGroup) );
queryBuildDataSource.autoHeader(2, true); 
//AutoHeader for 2nd sort field //Init queryRun on reportRun
sysQueryRun = new SysQueryRun( query );
sysQueryRun.promptLoadLastUsedQuery( false ); 
// use created queryRun 
  sysReportRun.queryRun( sysQueryRun );  
//Setup and create repor design
  report = sysReportRun.report();
 report.query(sysReportRun.queryRun().query());
reportDesign = report.design();
 reportDesign.caption( 'Test for people' );
reportDesign.reportTemplate( 'FrontPage' );
 reportAutoDesignSpecs = reportDesign.autoDesignSpecs();
 // Add section and fields on the report
  reportSection = reportAutoDesignSpecs.addSection(ReportBlockType::Body, people.TableId); reportControl = reportSection.addControl(people.TableId, fieldnum(people, Name));
 reportControl = reportSection.addControl(people.TableId, fieldnum(people, MyGroup));
 reportControl = reportSection.addControl(people.TableId, fieldnum(people, Salary));
 reportRealControl = reportControl;  
//calculate grand total on this field 
  reportRealControl.sumAll( true );
 reportAutoDesignSpecs.grandTotal( true );
 //Block form usage
sysReportRun.queryRun().query().interactive( false );
 report.interactive( false );  
//Setup print options: //Print ranges, print totals only, print grand total, remove...repetitive, remove ...identical sysReportRun.printRemoveRepeatedHeaders(true);
 sysReportRun.buildPrintRemoveRepeatedHeaders();
 sysReportRun.run();
 }