D365F&O - X++ - create button onclicked eventhandler on form extension

[FormControlEventHandler(formControlStr(CostingVersion, CalcInMass), FormControlEventType::Clicked)]

public static void CalcInMass_OnClicked(FormControl sender, FormControlEventArgs e)

{

    FormDataSource  formDatasource;

    BOMCalcJob_All  BOMCalcJob_All;

    CostingVersion      CostingVersion;

    formDatasource = sender.formRun().dataSource(1);

    CostingVersion = formDatasource.cursor();

    BOMCalcJob_All = BOMCalcJob_All::newAll(CostingVersion);

   

    if (BOMCalcJob_All.prompt())

    {

        BOMCalcJob_All.modifyQuery();

        BOMCalcJob_All.run();

    }

}