Sometimes you may want to create an temporary file . Instead of manipulating the user’s temporary directory and then manually generating the random file name , you can use the GetTempFileName method defined in the Path class.

If you don’t need to create the file , you can use the Path.GetRandomFileName() instead.

How to Create a Unique and Temporary Filenames in C# ?

Below is a sample code snippet demonstrating how to create a temporary file and write a text to it.

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Text;
using System.IO;
namespace GinktageConsoleApp
{
    internal class Program
    {
        private static void Main(string[] args)
        {
           string tempFileName = Path.GetTempFileName();
           using (StreamWriter streamWriter = File.CreateText(tempFileName))
           {
               streamWriter.WriteLine("Welcome to Ginktage");
           }
           Console.ReadLine();
        }     
    }
    
}