Do yourself a favor and use a class somebody else has debugged. My two favorites for this are:
- piDog’s DataView with LOTS of features
- Kem’s Data-on-Demand shareware
The piDog DataView is written from the ground up using a container control, so can do LOTS of things a Xojo Listbox cannot. Amazing product. The more I use it, the less I use a Xojo Listbox for anything.
Kem’s Data-on-Demand shareware is subclassed from a Xojo Listbox, but handles all the dirty work for you. Near instant loading and scrolling in any size recordset. And while on his download page, look over his other stuff too. Very useful stuff.