html - Getting attribute of element in XPath -


i want learn web-scraping. therefore, started practicing. trying data-ad-id html using xpath.

html structure this: 

<body id="z1234">     <div class="viewport">         <div class="g-row">             <div class="g-col-9">                 <div class="cbox cbox--content cbox--resultlist">                     <div class="cbox-body cbox-body--resultitem dealerad rbt-reg rbt-no-top"><a class="link--muted no--text--decoration result-item" href="url" data-ad-id="248059713"></a>                 </div>             </div>         </div>     </div> </body>

xpath <a class="link--muted no--text--decoration result item" > //*[@id="z1234"]/div[3]/div[4]/div[2]/div[1]/div[11]/a. if choose different car, last div changes.

according write c# code:

var url = "https://suchen.mobile.de/fahrzeuge/search.html?damageunrepaired=no_damage_unrepaired&issearchrequest=true&maxpowerasarray=kw&maxprice=10000&minpowerasarray=kw&minprice=10000&scopeid=c";             httpwebrequest request = (httpwebrequest)webrequest.create(url);             httpwebresponse response = (httpwebresponse)request.getresponse();             streamreader sr = new streamreader(response.getresponsestream());             string sourcecode = sr.readtoend();              htmlagilitypack.htmldocument document = new htmlagilitypack.htmldocument();             document.loadhtml(sourcecode);                 var rows = document.documentnode.selectnodes("//*[@id='z1234']/div[3]/div[4]/div[2]/div[1]/div[11]");               foreach (var row in rows)             {                 var id = row.selectsinglenode("a[@data-ad-id]").innertext;                 console.writeline("id:" + id);             }         }

i cannot node. null. how can data-ad-id?

edit change c# code:

var rows = document.documentnode.selectnodes("//a[@data-ad-id]")[0]; var id = rows.attributes["data-ad-id"].value;

now can data-ad-id.

as per code of site, sense have no innertext "a" tag. contains div , img tags.

you need fetch data-ad-id using 

//a[@data-ad-id]/@data-ad-id

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