I have the following JQUERY code that relates to a html document from a website.
$
Anything is appreciated,
Salute.
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2You will need a lib to parse the html string like HtmlAgilityPackVsevolod Goloviznin– Vsevolod Goloviznin2014-12-18 21:11:26 +00:00Commented Dec 18, 2014 at 21:11
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jQuery and c# are not interchangeable, so there isn't a direct translation from the javascript you write for your jQuery, to c#. Do you mean that you are trying to generate the javascript in your example by using c#?Zack– Zack2014-12-18 21:31:36 +00:00Commented Dec 18, 2014 at 21:31
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2 Answers
From what I can remember using the HtmlAgilityPack
var rawText = "<html><head><head><body><div id='container'><article><p>stuff<p></article><article><p>stuff2</p></article></div></body></html>";
var doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(rawText);
var stuff = doc.DocumentNode.Descendants("div")
.SelectMany(div => div.Descendants("article"));
var length = stuff.Count();
var textValues = stuff.Select(a => a.InnerHtml).ToList();
Output:
length: 2
textValues: List<String> (2 items)
<p>stuff<p>
<p>stuff2</p>
To get the HTML, instead of hardcoding it as above, use the WebClient class since it has a simplier API than WebRequest.
var client = new WebClient();
var html = client.DownloadString("http://yoursite.com/file.html");
Comments
To answer your question specifically related to using the System.Net namespace you would do this:
go here to see the way to use the WebRequest class itself to get the content.
http://msdn.microsoft.com/en-us/library/456dfw4f%28v=vs.110%29.aspx
Next after you get the content back you need to parse it using HTMLAgility pack found here: http://htmlagilitypack.codeplex.com/
How would one code the JQUERY into C#, this is an untested example:
var doc = new HtmlDocument();
doc.Load(@"D:\test.html"); //you can also use a memory stream instead.
var container = doc.GetElementbyId("continer");
foreach (HtmlNode node in container.Elements("img"))
{
HtmlAttribute valueAttribute = node.Attributes["value"];
if (valueAttribute != null) Console.WriteLine(valueAttribute.Value);
}
In your case the attributes you want after you find the element are alt, src, and href
It will take you about 1 day to learn agilitypack but it's mature fast and well liked by the community.
