How to refresh the FormGrid after updating the data in AX 2012 using X++

void clicked()
{
    FormRun callerForm;
    Args args = new Args();
 

    callerForm          = element.args().caller(); //caller form
    callerForm.dataSource().refresh(); //refresh the form cache
    callerForm.dataSource().reread(); //will only re-read the CURRENT record from the DB
    callerForm.dataSource().research(); // will rerun the existing form query against the data source, //therefore updating the list with    new/removed records as well as updating existing ones.

}