c# - How to get all the contents of specified class from string? -

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i trying make app windows phone forum. here function far (just taking xaml):

private async void go_click(object sender, routedeventargs e)     {         httpclient wc = new httpclient();         httpresponsemessage response = await wc.getasync("http://www.myforum.com/");         response.ensuresuccessstatuscode();         string xaml = await response.content.readasstringasync();         textxaml.text = json;     }

there no errors in code , xaml.

what want category names of forum. category names have class of "category-name".

how can category names? can them string? have parse string or something?

i think article on codeproject you:

http://www.codeproject.com/tips/804660/how-to-parse-html-using-csharp

it uses library called htmlagilitypack can install via nuget:

http://www.nuget.org/packages/htmlagilitypack

the below example may work purposes due firewall issues haven't been able test works , helps answer question.

using system; using system.collections.generic; using system.linq; using system.net; using system.net.http; using system.text; using htmlagilitypack;  namespace htmlparserdemo {     class program     {         // update url page trying parse         private const string url = "http://www.bing.com/";         private const string tagname = "a";         private const string classname = "forumtitle";          static void main(string[] args)         {             try             {                 console.writeline("getting html from: {0}", url);                  foreach (var category in getcategories(url, tagname, classname))                 {                     console.writeline(category);                 }             }             catch (exception exception)             {                 while (exception != null)                 {                     console.writeline(exception);                     exception = exception.innerexception;                 }             }                         {                 console.writeline("press key exit...");                 console.readkey(true);             }         }          public static ienumerable<string> getcategories(string url, string htmltag, string classname = "")         {             var response = new httpclient().getbytearrayasync(url).result;             string source = encoding.getencoding("utf-8").getstring(response, 0, response.length - 1);             source = webutility.htmldecode(source);             var result = new htmldocument();             result.loadhtml(source);              return result.documentnode.descendants()                 .where(node =>  node.name == htmltag &&                                  (string.isnullorempty(classname) || (node.attributes["class"] != null &&                                  node.attributes["class"].value == classname)))                 .select(node => node.innertext);         }     } }

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