More than one form was opened at once for lookup control. - solution

Issue: More than one form was opened at once for lookup control.

Resolution: The form control lookup can be extended to get desired lookup using below code:

[FormControlEventHandler(formControlStr(EcoResProductParameters, EcoResProductParameters_ProductEntityAttributeMasterCompanyId), FormControlEventType::Lookup)]

    public static void EcoResProductParameters_ProductEntityAttributeMasterCompanyId_OnLookup(FormControl sender, FormControlEventArgs e)

    {

        FormControlCancelableSuperEventArgs fccse = e as FormControlCancelableSuperEventArgs;

        SysTableLookup sysTableLookup = SysTableLookup::newParameters(tableNum(CompanyInfo), sender);

        Query query = new Query();

        query.addDataSource(tableNum(CompanyInfo));

        sysTableLookup.addLookupfield(fieldNum(CompanyInfo, DataArea));

        sysTableLookup.addLookupfield(fieldNum(CompanyInfo, TSTGlobalNumber));

        sysTableLookup.parmQuery(query);

        sysTableLookup.performFormLookup();

        fccse.CancelSuperCall();

    }