看看这个：controls-based-security-in-a-windows-forms-application/ [ ^ ]

to create a simple application for my user.
1. The login should be role based i.e. the user will login using two different login types: Admin and User.

2. Admin can Insert, update, delete and create user as well as has full rights to the entire application.

3. User should be only able to view their own details and the data they want form the excel sheet.

Data is about softwares and their different versions and keys stored in a file.

When a user selects a certain software name their different versions should be shown in a list and when user selects s version the keys of that version should be shown.

Thanks and regards

Check this out: controls-based-security-in-a-windows-forms-application/[^]