This was the project which I completed for Unit 42 Programming in .NET of my HND in Computing and Systems Development.

System Requirements:

Design a .NET application for a customer. This customer has a company that sends information about local sales and offers to people who have opted to receive it. The customer has asked you for a Windows application that will store the contact information of the people who want to receive this information.

The system needs to store, for each user: their full name, postal address, landline & mobile phone numbers, email address, and some comments. This information needs to be accessible via a Windows-based Graphical User Interface to allow for ease-of-access.

The structure of the data file that the application will use to store the user information is a text file.
The email address needs validation to ensure that it is in the correct format.

Below is some screenshots of the finished application and some of the code used.

Screenshots and Code. Please click to enlarge