Before i have cholecystectomy, do i have to ask my surgeon to do intra-operative cholangiography, or is this standard procedure during surgery?

Standard but?: First yes you can ask second it is a standard most of the time unless there is a technical problem like duct too small or too short some surgeon do not do it unless there is an indication like multiple stones or jaundice it is ok to ask.

Yes, ask: There is still substantial debate whether intraoperative cholangiography (ioc) should be routine or selective. There are clear indications for ioc, such as having elevated bilirubin and common bile duct stone on ultrasound - while having a history of gallstone pancreatitis is a relative indication. If a stone is seen on ioc, some surgeons are facile in removing them, otherwise endoscopic removal.