Modify HTML file in a c sharp class

Question

First of all my application is not a web application. My aim is reading html files and modify them.

So that I write this code:

    string fileName = "~\\ActivationMail.html";
    string textLine = string.Empty;

    System.IO.StreamReader objReader;
    objReader = new System.IO.StreamReader(fileName);

    do
    {
        textLine += objReader.ReadLine();
        if (textLine.Contains("id=\"link\""))
        {
            textLine += "href=\"www.google.com\"";
        }
    } while (objReader.Peek() != -1);

    objReader.Close();

But each time reading whole html file is not seems to best solution. Can I change specific divs without reading(looping) whole html file? Is it possible?

Answer 1

If you are wanting to just change certain things, you could be able to do this with XPath. Using the HTML Agility Pack, you can do this using C#.

http://htmlagilitypack.codeplex.com/