Projects on C# Developer Portfolio

FuelFlow

Wed, 02 Jul 2025 00:00:00 +0000

Overview

FuelFlow is a Software-as-a-Service (SaaS) web-based application designed to digitize and streamline the management of gas stations in Sri Lanka. Targeting small and medium-sized enterprises (SMEs), FuelFlow replaces manual logbook systems with a user-friendly platform for managing fuel stock, pump operations, daily sales, gas sold quantities, and employee performance targets. Built with modern technologies, it ensures accessibility, efficiency, and scalability for gas station owners and workers, addressing local challenges like limited digital infrastructure and low digital literacy.

Learn Local

Sun, 22 Jun 2025 00:00:00 +0000

Overview

A comprehensive Flutter mobile application designed to help users learn local languages through interactive lessons, practice exercises, and engaging quizzes. The app focuses on making language learning accessible and enjoyable with features like pronunciation practice, progress tracking, and offline capabilities.

Key Features

Home Dashboard: Quick access to lessons and support for 4 languages.
Interactive Lessons: Speech practice and audio pronunciation guide.
Comprehensive Quizzes: Multiple difficulty levels, question count, performance tracking with best scores and attempt history.
User Profile & Progress: Personal learning statistics, achievements, lesson completion tracking and streak counters with points system.
Settings & Customization: User preference configuration.
Offline Capabilities: Lessons can be downloaded for offline studying and progress will be synced when back online.

Technical Implementation

WPF Architecture

The application developed using Flutter:

DEA.Next

Sun, 20 Mar 2022 00:00:00 +0000

Overview

DEA (Download Email Attachments) is a comprehensive .NET 8.0 application suite designed to automatically download email attachments from Microsoft Exchange Online using the Microsoft Graph API and process them through various delivery methods including FTP/SFTP and REST API integration.

Key Features

Microsoft Graph Integration: Secure OAuth2 authentication with Exchange Online
Multi-Protocol File Transfer: Support for FTP, FTPS, and SFTP
REST API Integration: Automated file and data submission to web services
Database Management: PostgreSQL backend with Entity Framework Core
Customer Configuration: Multi-tenant support with individual client settings
Automated Processing: Queue-based processing with configurable batch sizes
Comprehensive Logging: Structured logging with Serilog
PDF Generation: Built-in PDF creation capabilities
Windows Forms UI: User-friendly interface for configuration management

Technical Stack

.NET 8.0: Core framework
Entity Framework Core 9.0: ORM with PostgreSQL provider
Microsoft Graph SDK: Exchange Online integration
FluentFTP: FTP/FTPS operations
SSH.NET: SFTP operations
RestSharp: REST API client
Serilog: Structured logging
iText: PDF generation
Windows Forms: Desktop UI

Architecture Overview

DEA.Next consists of four interconnected projects: