Refreshing a Form with a Single Root Data Source

public void closeOk()
{
    #Task
    FormRun formRun;
    
    super();
    
    // Get an instance of the calling form.
    formRun = element.args().caller();
    
    // If the caller is a form, refresh that form.
    if(formRun)
    {
        formRun.task(#taskF5);
    }
}