I want to create a small app that will allow user to add users and their phone numbers to a listbox and create groups for that listbox if desired and all information is kept in database. When the app opens it loads the listbox from the data in the database and seperates it into the users groups.

John
Group1:
Dave
Mark
Jason
Group2:
Lisa
David

I would be wiling to pay some for this part of the app to be completed for me.