How To Create Text File And Write To It

In this blog, you will learn how to create text file and write to it.

Continuing with my new C# “how-to” theme, the code snippet below shows how to create a text file and write content to it using the StreamWriter class. Remember to add the “using System.IO;” directive at the top. Note that there is a StreamWriter constructor which supports a Boolean parameter “append” – if you pass true for this parameter and the file already exists, the StreamWriter will append content to the file rather than overwrite the existing content. 

conststring TextFilePath = @“C:\WriteTest.txt”;
using (StreamWriter writer = new StreamWriter(TextFilePath))
{
   writer.WriteLine(“Hello, world”);
   writer.WriteLine(“Bye, world”);
}

StreamWriter class provides several other methods to write to files. 

 

Here is a detailed tutorial: StreamWriter In C#