TodoApp - ASP.NET Core MVC Todo List Application

A modern, responsive todo list application built with ASP.NET Core 8 MVC and Entity Framework Core with an in-memory database.

Features

• ✅ Create, read, update, and delete todo items
• 🎯 Priority levels (High, Medium, Low)
• 📊 Task status tracking (Pending/Completed)
• 📱 Responsive design with Bootstrap 5
• 🔍 Filter tasks by status and priority
• 📈 Task statistics dashboard
• ⚡ In-memory database for quick development

Technologies Used

• ASP.NET Core 8.0 - Web framework
• Entity Framework Core - ORM with In-Memory database
• Bootstrap 5 - CSS framework for responsive design
• Font Awesome - Icons
• jQuery - Client-side validation and interactions

Project Structure

TodoApp/
├── Controllers/
│   ├── HomeController.cs      # Home page controller
│   └── TodoController.cs      # Main todo CRUD operations
├── Models/
│   └── TodoItem.cs           # Todo item entity model
├── Data/
│   └── TodoContext.cs        # Entity Framework context
├── Views/
│   ├── Shared/
│   │   ├── _Layout.cshtml    # Main layout template
│   │   └── _ValidationScriptsPartial.cshtml
│   └── Todo/
│       ├── Index.cshtml      # Todo list view
│       ├── Create.cshtml     # Create new todo
│       ├── Edit.cshtml       # Edit existing todo
│       ├── Details.cshtml    # Todo details view
│       └── Delete.cshtml     # Delete confirmation
├── Properties/
│   └── launchSettings.json   # Development settings
├── appsettings.json          # Application configuration
└── Program.cs                # Application entry point

Getting Started

Prerequisites

• .NET 8.0 SDK or later
• Visual Studio 2022 or VS Code

Running the Application

1. Clone the repository:

   git clone <repository-url>
   cd copilot-demo

2. Restore NuGet packages:

   dotnet restore

3. Run the application:

   dotnet run

4. Open your browser and navigate to:

   • HTTP: http://localhost:5000
   • HTTPS: https://localhost:5001

The application will automatically create an in-memory database with sample data when it starts.

Key Features Explained

Todo Item Model

• Title: Required field with 200 character limit
• Description: Optional field with 1000 character limit
• Priority: Enum (Low, Medium, High)
• Status: Boolean indicating completion
• Timestamps: Creation and completion dates

Database Context

• Uses Entity Framework Core with In-Memory database
• Includes data seeding with sample todo items
• Configured with proper indexing for performance
• Proper data validation and constraints

Controller Features

• Full CRUD operations (Create, Read, Update, Delete)
• Task filtering by status and priority
• Toggle completion status
• Comprehensive error handling and logging
• Data validation with model binding

UI/UX Features

• Modern, responsive design
• Color-coded priority indicators
• Interactive task completion toggle
• Statistics dashboard
• Filter and search capabilities
• Success/error message notifications

Development Notes

Error Handling

• Comprehensive exception handling in controllers
• Logging for debugging and monitoring
• User-friendly error messages
• Validation error display

Security

• Anti-forgery tokens for form submissions
• Input validation and sanitization
• Model binding protection

Performance

• Efficient database queries
• Proper indexing on frequently queried fields
• Asynchronous operations where appropriate

Future Enhancements

Potential improvements for this application:

• User authentication and authorization
• Due dates and reminders
• Categories and tags
• File attachments
• Search functionality
• Data export capabilities
• Real database integration (SQL Server, PostgreSQL, etc.)
• API endpoints for mobile app integration

Contributing

Feel free to submit issues and enhancement requests!

License

This project is open source and available under the MIT License.