6. Invoice Generator
An invoice generator creates customer invoices, line items, totals, payment status, and printable invoice views.
Why employers care
Employers care because invoices show practical business math, validation, document-style output, and database-backed financial records.
Main build outline
- Create customer, invoice, invoice line item, payment status, and due date records.
- Add invoice create/edit screens with line item totals and validation.
- Add printable invoice detail view with business-friendly formatting.
- Add filters for unpaid, overdue, paid, draft, and recent invoices.
- Add a dashboard showing unpaid totals and overdue invoice counts.
Modern .NET stack
- Blazor Server or ASP.NET Core MVC/Razor Pages for the web UI.
- C# services for validation, workflow rules, and business logic.
- Entity Framework Core with SQL Server locally, then SmarterASP SQL Server or Azure SQL.
- SmarterASP for practical hosting, with Azure App Service or AWS as cloud stretch paths.
- Optional GitHub Actions, Docker, dashboard reporting, and small AI helper features.
Portfolio proof
- README with the business problem, screenshots, setup steps, and tech stack.
- Database schema or diagram that explains the main tables and relationships.
- Screenshots of list, detail, create/edit, search, filtering, and status workflows.
- Small commit history showing steady feature work and clean fixes.
- Secret-safety note confirming connection strings and API keys are not committed.