I am developing a stock control system and front of box and I intend to create a warning screen in the main form (it can be with datagridview), where, if when selling certain product and it reaches the minimum stock limit, then the warning screen should display this warning automatically. So far, the only alternative I could think of is to put this warning screen to update automatically every 1 minute, but still it would not be something online.
What is the best possible alternative to this development? Please do not want to leave the system heavy, I want something LIGHT!
Thank you! Abs!