Create and Read Text File in C#
Today, you will learn how to create and read Text file using C#.net. This method is very important because it represents as a log file that you will need in a system. Logs are use to track all events in the system.
Let’s begin:
1. Open Microsoft Visual Studio 2008 and create new Windows Form Application for C#. Then do the following design of a Form just like this.
2. Go to the Solution Explorer, click the “View Code” to display the code editor.
3. Set the path where you want to place a text file.
string path = @"c:/Test.txt";
4. Go back to the design view, double click the “Create” button and do the following codes for creating a text file.
//checking if the file exist
if (!File.Exists(path))
{
// Create a txt file to write the text in the textbox.
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine(txtWriteLog.Text);
}
}
//checking if the file exist
if (File.Exists(path))
{
// This text in the textbox will always appen into the .txt file that you have created.
using (StreamWriter sw = File.AppendText(path))
{
sw.WriteLine(txtWriteLog.Text);
}
}5. Go back to the design view, double click the “View Logs” button and do the following codes to open a text file that you have created.
//checking if file exist
if (File.Exists(path))
{
//open the notepad(file) that you have created
System.Diagnostics.Process.Start(@"notepad.exe", path);
}For all students who need programmer for your thesis system or anyone who needs a sourcecode in any programming languages. You can contact me @ :
Email – [email protected]
Mobile No. – 09305235027 – tnt
| ABOUT PROJECT | PROJECT DETAILS |
|---|---|
| Project Name : | Create and Read Text File |
| Project Platform : | C# |
| Programming Language Used: | C# Programming Language |
| Developer Name : | itsourcecode.com |
| IDE Tool (Recommended): | Visual Studio 2019 |
| Project Type : | Desktop Application |
| Database: | None |
| Upload Date and Time: | June 23, 2016 – 6:33 am |
Frequently Asked Questions
How does this C# project work?
Built with C# WinForms (.NET Framework or .NET 6/7/8) and SQL Server backend. Standard structure: Form designer → code-behind event handlers → ADO.NET data access layer → SQL Server. Login form for auth. Ready to extend for BSIT capstone scope.
What .NET and SQL Server versions does this project require?
Most projects in this batch use C# WinForms on .NET Framework 4.5+ (the dominant stack for tutorial sites) with SQL Server 2012 Express or higher. A few newer projects use .NET 6/7/8. To run: install Visual Studio 2019 / 2022 (Community edition is free), install SQL Server Express + SSMS, open the .sln file, build, run.
How do I set up the database for this C# project?
Open SQL Server Management Studio (SSMS) and connect to your SQL Server instance (e.g. localhost\SQLEXPRESS). Right-click Databases > Restore Database OR > New Database then import the included .sql script. Update the connection string in App.config (or in code-behind) with your server name + credentials. Rebuild and run.
Can I use this C# project for a BSIT capstone or thesis?
Yes, but extend it. A bare CRUD form is too narrow for full capstone scope. Add: role-based access (admin/staff/customer login redirect), Crystal Reports or RDLC reports, dashboard with Chart controls, audit log, multi-branch support. Pair with Chapter 1-5 documentation matching your panel’s rubric.
Why am I getting ‘connection error’ or ‘object reference not set’?
Three common C# issues: (1) Connection error: SQL Server isn’t running OR connection string in App.config has wrong server name. Open SQL Server Configuration Manager + verify SQL Server (SQLEXPRESS) service is running. (2) NullReferenceException: a control reference or DB column returned NULL, add a check or use ?? operator. (3) Build error ‘The type or namespace could not be found’: missing assembly reference, add via Project > Add Reference.
Where can I find more C# projects with source code?
Browse the C# Projects hub for the full library. For other .NET stacks see VB.NET Projects (300+ Windows Forms systems). For ASP.NET WebForms see ASP.NET Projects. For BSIT capstone idea lists see 150 Best Capstone Project Ideas.