🏪 Store Management System

A Store Management System built with C# and Windows Forms, designed using a multi-layer architecture. The system allows store employees to manage customers, products, promotions, and orders at the checkout while maintaining inventory and performing advanced searches and sorting.

The project follows SOLID design principles and implements a clear separation between business logic, data access, and user interface layers.

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📋 Overview

This project demonstrates structured .NET development using a layered architecture. It includes business logic management, multiple data access implementations, logging mechanisms, and XML-based data persistence.

The application supports store operations such as product management, customer management, promotions, checkout orders, and inventory tracking.

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🏗️ Project Structure

Store-Management-System/
├── BL/              # Business Logic Layer
├── BlTest/          # Business Logic Tests
├── DalFacade/       # Data Access Layer Interface
├── DalList/         # In-Memory List Implementation
├── DalXml/          # XML File Implementation
├── DalTest/         # Data Access Tests
├── Tools/           # Utility classes and helpers
├── UI/              # Windows Forms User Interface
├── xml/             # XML data files
├── bin/             # Binary output
└── StoreManagementSystem.sln

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✨ Features

• Store Management

  • Manage products, customers, and promotions
  • Create orders at the checkout

• Full CRUD Operations

  • Create, read, update, and delete for all entities

• Search and Sorting

  • Advanced search capabilities
  • Multiple sorting options

• Inventory Management

  • Track and manage store stock

• Logging System

  • Logs stored in a dedicated folder
  • Organized by date

• XML Data Persistence

  • Data stored using DataContractSerializer

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💻 Tech Stack

• Language: C#
• Framework: .NET
• UI: Windows Forms
• Data Storage: XML
• Queries: LINQ
• Serialization: DataContractSerializer
• Architecture: Layered Architecture
• Design Principles: SOLID, Single Responsibility Principle

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🛠️ Installation

Prerequisites

• .NET SDK
• Visual Studio 2022 or later
• Windows OS

Setup

1. Clone the repository

git clone https://github.com/your-username/Store-Management-System.git

2. Open the solution file

StoreManagementSystem.sln

3. Build the solution

dotnet build

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🚀 Running the Application

Using Visual Studio

1. Open the solution file
2. Set the UI project as the startup project
3. Press F5 to run the application

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🧪 Running Tests

Run all tests:

dotnet test

Run specific test projects:

dotnet test BlTest
dotnet test DalTest

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📊 Data Storage

The project supports two storage mechanisms:

• In-Memory Storage (DalList) – useful for testing and development
• XML Files (DalXml) – persistent storage located in the xml/ directory