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Generate a Sitemap from HTML Files in C#

In this exercise, you will create a C# program that generates a preliminary "sitemap" file from the list of .html files in the current folder. The program will display the sitemap content, which will include the file names, with a frequency of "weekly" and the current date as the "last modification" date for each file. This sitemap will be displayed on the screen as a part of the output.



Group

Using Additional Libraries in C#

Objective

1. Retrieve the list of .html files in the current directory using Directory.GetFiles().
2. Use DateTime.Now to get the current date.
3. Display each HTML file as an entry in the sitemap, with "weekly" frequency and the current date as the "last modification" date.
4. Format the output as per the sitemap structure.

A "sitemap" is a file that webmasters can use to inform Google about the webpages that their website includes, with the aim of achieving better search engine rankings.
You must create a program that displays the contents of a preliminary "sitemap" on the screen. The sitemap should be generated from the list of ".html" files in the current folder, with a "weekly" frequency and the current date as the "last modification" date.

Example C# Exercise

 Copy C# Code 
using System;  // Importing the System namespace for basic functionalities
using System.IO;  // Importing the System.IO namespace to handle file operations

class Program
{
    static void Main()
    {
        // Get the current directory path
        string currentDirectory = Directory.GetCurrentDirectory();

        // Retrieve all .html files from the current directory
        string[] htmlFiles = Directory.GetFiles(currentDirectory, "*.html");

        // Get the current date
        DateTime currentDate = DateTime.Now;

        // Start of the sitemap display
        Console.WriteLine("Sitemap:");

        // Loop through each file and display it in the sitemap format
        foreach (var file in htmlFiles)
        {
            // Extract the file name (excluding the path)
            string fileName = Path.GetFileName(file);

            // Display the file entry in the sitemap format
            Console.WriteLine($"");
            Console.WriteLine($"  {fileName}");
            Console.WriteLine($"  {currentDate:yyyy-MM-dd}");
            Console.WriteLine($"  weekly");
            Console.WriteLine($"");
        }
    }
}

 Output

//Sitemap:
<url>
  <loc>index.html</loc>
  <lastmod>2025-04-03</lastmod>
  <changefreq>weekly</changefreq>
</url>
<url>
  <loc>about.html</loc>
  <lastmod>2025-04-03</lastmod>
  <changefreq>weekly</changefreq>
</url>
<url>
  <loc>contact.html</loc>
  <lastmod>2025-04-03</lastmod>
  <changefreq>weekly</changefreq>
</url>

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