Smart Retail
Mini Sales Management System — Desktop application for small retail businesses: point-of-sale, table service, transactions, and reporting.
Released Dates:
Jul 2021 — Project completed and released in Vietnamese version.
Aug 2025 — Translated to English version.
Overview
Smart Retail is a Windows desktop application for managing sales, inventory, and finances in small shops, cafes, and retail stores. It supports two user roles (employee and shop owner), table-based ordering, income/expense tracking, and export to Excel.
Key Features
| Module | Description |
|---|---|
| Login | Role-based access: Employee (sales only) and Shop owner (full management). Optional manager password. |
| Sales | Create orders, add products to cart, set unit price and quantity, checkout and print invoice. |
| Table service | Manage multiple tables/orders (e.g. cafe, restaurant). Create tables, open orders, save draft, checkout per table. |
| Purchase (stock-in) | Record purchase transactions and link to inventory. |
| Store settings | Configure shop name, address, phone, introduction, and owner password. |
| Product catalog | Add/remove products (name, unit price). Bulk import/export via Excel template. |
| Transaction management | List all income/expense transactions, filter by date (today, week, month), search by keyword. View totals: revenue, expenses, profit (overall and from sales). |
| Reports | Export to Excel: financial summary, sales detail by product, inventory (import/export/stock). |
| Invoice | Print receipt/invoice with shop info, customer, time, line items, and total (DevExpress XtraReports). |
| Activation | First-run setup: store info and activation code. Optional 30-day trial. |
Technology Stack
| Category | Technology |
|---|---|
| Language | C# |
| Framework | .NET Framework 4.7.2 |
| UI | Windows Forms, DevExpress (XtraEditors, XtraGrid, XtraLayout, XtraReports, XtraNavBar) |
| Data storage | EPPlus — Excel (.xlsx) as database (password-protected) |
| Serialization | Newtonsoft.Json (e.g. order details, table state) |
| Reports | DevExpress XtraReports (invoice layout and print preview) |
Highlights
- Full desktop lifecycle: login, main dashboard, multiple workflows (sales, tables, settings, reports).
- Role-based UI: different permissions for employee vs shop owner (e.g. no delete transaction, no store edit for employee).
- Rich UI: DevExpress grids, layout controls, galleries (tables), and printable reports.
- Export and reporting: multi-sheet Excel (financial, sales detail, inventory) and formatted invoice.
- Activation flow: registration number, verification code, and optional trial period for distribution scenarios.
Impact & Achievements
Timeline:
- Jul 2021 — Project completed and released in Vietnamese version.
- Aug 2025 — Translated to English version.
Traction:
- 100+ downloads from Vietnam since released.
- 2 active customers currently using in Adelaide, Australia.
Screenshots
Login — Role selection
Login screen: shop owner password or employee login.
Sales — Products, cart & checkout
Sales tab: initial view with empty cart, product catalog, customer info.
Sales tab: customer info, product catalog, cart and total amount.
Sales tab: cart with multiple items ready for checkout.
Table service — Table and dine-in order management
Table management: active tables list, time, order value.
Store settings — Shop, products & income/expense
Store setup: shop info, create income/expense transactions, product catalog.
Transaction management — Time-based statistics
Filter by day/week/month, total revenue, expenses, profit and transaction list.
Invoice — Print invoice (DevExpress XtraReports)
Preview and print invoice: shop info, customer, product details, total amount.
Export Excel — Financial & sales reports
Financial summary report (Financial Report):
Detailed product sales report (Sales Report):
Inventory / import-export report (Import Export Inventory):
