I found this on Stackoverflow. It might help:
Is the database in your bin directory? Is it also part of your project? I have seen this happen when every time you build it overwrites the database in your bin directory with the one from the project directory, so it appears things are not getting saved.
--- To view any and all changes to your DB via application use this one When you initially add the DB to the project, it is set to always update the product on build. This can be a good thing, but I find it rather annoying. In order to fix this: Select the MS Access DB from your Solution Explorer, Hit F4 to go to it's properties, Change the field "Copy to Output Directory" to "Copy if newer" instead of "Always".
http://stackoverflow.com/questions/5...er-execution-c