Using C# I would like to know how to get the Textbox value (i.e: john) from this sample html script :
<TD class=texte width="50%"> <DIV align=right>Name :<B> </B></DIV></TD> <TD width="50%"><INPUT class=box value=John maxLength=16 size=16 name=user_name> </TD> <TR vAlign=center> There are a number of ways to select elements using the agility pack.
Let's assume we have defined our HtmlDocument as follows:
string html = @"<TD class=texte width=""50%""> <DIV align=right>Name :<B> </B></DIV></TD> <TD width=""50%""> <INPUT class=box value=John maxLength=16 size=16 name=user_name> </TD> <TR vAlign=center>"; HtmlDocument htmlDoc = new HtmlDocument(); htmlDoc.LoadHtml(html); 1. Simple LINQ
We could use the Descendants() method, passing the name of an element we are in search of:
var inputs = htmlDoc.DocumentNode.Descendants("input"); foreach (var input in inputs) { Console.WriteLine(input.Attributes["value"].Value); // John } 2. More advanced LINQ
We could narrow that down by using fancier LINQ:
var inputs = from input in htmlDoc.DocumentNode.Descendants("input") where input.Attributes["class"].Value == "box" select input; foreach (var input in inputs) { Console.WriteLine(input.Attributes["value"].Value); // John } 3. XPath
Or we could use XPath.
string name = htmlDoc.DocumentNode .SelectSingleNode("//td/input") .Attributes["value"].Value; Console.WriteLine(name); //John 
where input.Attributes["class"] != null && input.Attributes["class"].Value == "box"HtmlDocument doc = new HtmlDocument(); doc.LoadHtml(html); XPathNavigator docNav = doc.CreateNavigator(); XPathNavigator node = docNav.SelectSingleNode("//td/input/@value"); if (node != null) { Console.WriteLine("result: " + node.Value); } I wrote this pretty quickly, so you'll want to do some testing with more data.
NOTE: The XPath strings apparently have to be in lower-case.
EDIT: Apparently the beta now supports Linq to Objects directly, so there's probably no need for the converter.
