Display Image using asp:Image based on ID from database and folder using c# asp.net

Hi
I want display image using asp:Image based on ID from database and folder using c# asp.net. So, the image will be display based on IDQuestion from sqlserver and folder.
This is my folder directory
klik this url http://24.media.tumblr.com/58a96dc0bfea3b1cdd55d2196eb397dd/tumblr_mmtpe8wvF41rd6hnpo1_500.jpg
explanation for folder directory :
1. In folder Images store, there is a folder "IDQuiz".
2. In folder IDQuiz consist of folder "Q001" , folder "Q002", folder "Q003", etc
3. In folder "Q001" , folder "Q002", folder "Q003", etc, consist of folder "QR001", folder "QR002", folder "QR003", etc
4. In folder "QR001", folder "QR002", folder "QR003", etc, consist of picture ...