Validating a Registration Form Using C#
Validating a Registration Form Using Regular Expression in C# Today, I will teach you how to validate a Registration Form using Regular Expressions in C#. Regular Expression contains the formated rules and …
C# Projects with Source Code: 55+ Free C# + SQL Server Tutorials & Mini Systems (2026)
itsourcecode.com hosts 55+ free C# projects, code snippets, and SQL Server tutorials (2026): full Windows Forms management systems and reusable how-to patterns for DataGridView, ListView, ComboBox, autocomplete, and login flows. Most projects use Visual Studio + SQL Server 2005-2019 (or LocalDB for development). Browse the management systems below if you need a capstone-scale project, or jump to the C# + SQL Server reference snippets if you need a specific control pattern.
Why C# is still a panel-friendly capstone stack in 2026
Two reasons C# stays relevant for BSIT capstones: (1) Windows Forms + SQL Server is the “professional Microsoft stack”: panels familiar with VB.NET, .NET Framework, or enterprise software recognize C# instantly. Smoother defenses than newer stacks. (2) Visual Studio Community is free + powerful: IntelliSense, debugger, designer surface for forms. Lab machines run it well on 8GB RAM.
Featured C# capstone-scale projects
🏥 Healthcare & Management
🎓 School, Student & Library
School Management System
Library Management System
Student Evaluation System
Student Grading System
💼 HR, Payroll & Leave
Payroll Management System
Leave Management System
🛒 Shop, Inventory & Billing
Inventory Management System
Pizza Ordering System
Cafe Billing System
📦 Other systems
Investment Management System
Open Source Project Management Software
C# + SQL Server reference snippets
Need a specific Windows Forms control pattern? These how-to posts give you copy-paste C# code for the most common SQL Server-backed UI tasks.
🔐 Login, Registration & User Management
Login Code with SQL Server
Login System with SQL Server 2005
Login User and User Registration
User CRUD in C# and SQL Server
Validate Registration Form (Regex)
🔌 Database connection (MySQL & SQL Server)
Connect MySQL Database to C#
Connect SQL Server to C#
Save and Retrieve Data (MySQL)
Save and Retrieve Data (SQL Server)
Retrieve and Delete Data (MySQL)
Retrieve and Update (MySQL)
Update Data (SQL Server)
Delete and Retrieve (SQL Server 2005)
Multiple Save with SQL Server
📊 DataGridView
Populate DataGridView with MySQL
Add Columns/Rows Programmatically
Search Data in DataGridView
Fill DataGridView Based on ComboBox
Autocomplete TextBox Column in DataGridView
AutoComplete ComboBox in DataGridView
Calculate Total Quantity in DataGridView
📋 ListView, ListBox & ComboBox
Load Data in ListView
Search Data in ListView
Load Data in ListBox
Get Value Member in ListBox
Get Value Member in ComboBox
Search Records via ComboBox
Fill ComboBox with Two Display Members
Save and Fill ComboBox
📝 TextBox & Form Controls
Auto-Suggest in TextBox
Multi-Column AutoComplete TextBox
AutoNumber in TextBox
Create TextBox Programmatically
Clear Multiple TextBoxes
Validate TextBox with ErrorProvider
Add Button Programmatically
🧮 Calculators & Utilities
Calculator in C#
Simple Calculator in C#
MDAS Calculator in C#
Calculate Age with Zodiac Sign
Date and Time Calculation Methods
Segregate Days and Time
Get Time Interval
Create and Read Text File
📚 Intro tutorials
01, Introduction to C#
02, Syntax in C#
About this C# projects collection
Curated since 2015 by PIES Information Technology Solutions, Binalbagan, Negros Occidental, Philippines. Each project tested in Visual Studio + SQL Server before publishing. Used by 12,000+ BSIT students monthly.
Related capstone project collections
C Projects with Source Code, 70+ C language mini projects
C++ Projects with Source Code, 60+ C++ OOP mini projects
VB.NET Projects with Source Code, 20+ VB.NET capstone projects (sister Microsoft stack)
Java Projects with Source Code, 120+ Java + NetBeans capstones
Best Python Projects with Source Code, 250+ Python capstone projects
UML Diagrams Library, 300+ ER, DFD, Class, Use Case diagrams
How to Load Data in the ListView Using C#
How to Load Data in the DataGridView in C# and SQL Server How to Load Data in the ListView Using C# In this tutorial, I will teach you how to …
Getting Time Interval Using C#
Getting Time Interval Using C# Today, I’m going to teach you how to get a time interval using C#.NET. In this project, I use the TimeSpan properties to get the time interval between …
Adding Button Using C#
Adding Button Programmatically Using C# In this tutorial I will teach you how to add a Button programmatically in C#.Net. With this method, there’s no need for you to drag and …
Multiple Save Using C# and SQL Server
Multiple Save Using C# and SQL Server Saving data in the database takes you a lot of time but, In this tutorial I will teach you how to save multiple …
Load Data in the ListBox Using C# and SQL Server
Load Data in the ListBox Using C# and SQL Server In this tutorial, I will teach you how to load data in the ListBox using C#.net and Microsoft SQL Server …
User CRUD in C# and SQL Server
User CRUD in C# and SQL Server This time, I will teach you how to perform Crud using C# and SQL server 2005. CRUD is very important for a system because …
Login System in C# and SQL Server 2005
Login System in C# and SQL Server 2005 In this tutorial, I will teach you how to create a Login System in C#.net and SQL server 2005. This is a …
Clear Multiple TextBoxes in C#
Clear Multiple TextBoxes in C# If you are a beginner in Programming Languages and you’re using C#.net, this tutorial will help you minimize your codes and lessen your work. This …
How to Delete and Retrieve Data in C# and SQL Server 2005
How to Delete and Retrieve Data in C# and SQL Server 2005 This time, I will teach you how to delete and retrieve the data in C#.net and SQL server …
Save and Fill Data in a ComboBox in C# and SQL Server
In this tutorial, I will show you how to save and fill data in the ComboBox in C# and SQL Server 2005. This method is use for displaying data in the database to …
Updating Data in C# and SQL Server
In this tutorial, I will teach you how to update data in the database in C#.Net and SQL Server Manangement Studio Express. With this, you can update data in the …
Auto-Suggest in a TextBox Using C# and SQL Server
Searching an accurate information or record in the database is very difficult without a hard copy for your basis. So, in this tutorial, I will teach you how to create a …
Frequently Asked Questions
Are these C# projects free for capstone and thesis use?
Yes. All projects are free to download, modify, and submit. No attribution required for academic use. Most are MIT-licensed.
What .NET version (Framework, .NET 6, .NET 8) do I need?
Most of these projects target .NET Framework 4.5-4.8 (Windows Forms), the classic Visual Studio default. They open in any modern Visual Studio (2019, 2022). For new projects, use .NET 8 with Windows Forms (still supported on .NET 8 under Windows). Avoid .NET 5/6/7, they are end-of-life as of 2024-2025.
Visual Studio Community vs Visual Studio Code?
Visual Studio Community for Windows Forms projects, it has the form designer, IntelliSense, and debugger that make C# productive. VS Code works for .NET 8 console / ASP.NET projects via the C# Dev Kit extension, but Windows Forms designer does not run in VS Code. Use full Visual Studio for these.
SQL Server vs MySQL, which does C# work with?
Both. Use SQL Server plus System.Data.SqlClient for the classic Microsoft stack. Use MySQL plus MySql.Data NuGet package if your school standardizes on MySQL. Most snippets above show the SQL Server pattern; the MySQL ones use MySqlConnection instead of SqlConnection, otherwise identical.
Can I deploy a C# Windows Forms capstone to the web?
No, Windows Forms is desktop-only. For web deployment, you would rewrite as ASP.NET Core MVC or Blazor (different framework). Most BSIT capstones submit Windows Forms with a local SQL Server / SQL Server LocalDB demo on the panel laptop.
How do I run these C# projects locally?
(1) Install Visual Studio Community 2022 (free) with the .NET desktop development workload. (2) Install SQL Server Express or LocalDB (often bundled with Visual Studio). (3) Open the project's .sln file in Visual Studio. (4) Import the SQL backup into your local SQL Server instance. (5) Update the connection string in App.config or the data access class. (6) Press F5 to run.
How often is this C# projects list updated?
New C# tutorials and projects are added periodically. Last refreshed May 2026.