k4kasun 0 Newbie Poster

Hi, this is for my final year IT Project.
By using 32 InTheHand libraries, I have manage to identify and get the bluetooth enabled devices mac addresses to an array. I use a timer to refresh the list but for some reason it won't refresh. The past discovered devices remains in the list even they are off. how can i avoid this. and the program get crashed when trying to close. please help. I am developing the system using C#