You can just set property “Auto refresh data” of a button to Yes or alternatively via x++ you can use this code
datasource.refresh();
datasource.research(true);AX / D365FO – How to refresh form in x++
You can just set property “Auto refresh data” of a button to Yes or alternatively via x++ you can use this code
datasource.refresh();
datasource.research(true);
AX / Dynamics 365 For Finance and Operations blog 