HOw to get selection node h2 tag on http agility pack

Question

<div id="content">
<div class="sense-block" id="1-1>
<h2>
<span class="hw">appear</span>
<span class="posgram">
<span class="pos" title="A word that describes an action, condition or experience.">verb</span>
</span>
<span class="guideword" title="Guide word: helps you find the right meaning when a word has more than one meaning">
(BE PRESENT)
</span>
</h2>
<div class="sense-body">
<span class="def-block">
<span class"def-body">
<span class"examp"></span>
<span class"examp"></span>
</span>
</span>
<span class="def-block>
<span class="def-body">
<span class"examp"></span>
<span class"examp"></span>
</span>
</span>
</div>
</div>
<div class="sense-block" id="1-2>
<h2></h2>
<div class="sense-body">
<span class="def-block"></span>
<span class="def-block></span>
</div>
</div>
</div>
var newsListNodehtml = htmlDoc.GetElementbyId("1-1");
if(newsListNodehtml!=null)
var senseblock = newsListNodehtml.Descendants("span").Where(x => x.GetAttributeValue("class", "") == "def-block");
if(senseblock!=null)
foreach(var node in senseblock)
Dictionaries = new Models.EnglishDictionary();
var title = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "def");
var examp = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "def-body");
//Dictionaries.Symbol = "/Photos/glasses-50.png";
if (title != null)
Dictionaries.Description = title.InnerText.Trim();
if (examp != null)
Dictionaries.Examp = examp.InnerText.Trim();
var hw = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "hw");
var prsgram = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "posgram");
var word = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "guideword");
if (hw != null)
Dictionaries.Word = hw.InnerText.Trim();
if (word != null)
Dictionaries.GuideWord = word.InnerText.Trim();
if (prsgram != null)
Dictionaries.Grammar = prsgram.InnerText.Trim();
//Dictionaries.Phrase=pharsel.InnerText;
arrays.Add(Dictionaries);
<div id="x_x_1-1>">
var senseblock = newsListNodehtml.Descendants("span").Where(x => x.GetAttributeValue("class", "") == "def-block");
So, senseblock will not be have <h2> tag. Of couse that results is null to (foreach will be play two time and getting def-block two times"
 But If I changed It(senseblock ) to 
          var newsListNodehtml = htmlDoc.GetElementbyId("content"); // content is contain all tag
            if(newsListNodehtml!=null)
                var senseblock = newsListNodehtml.Descendants("span").Where(x => x.GetAttributeValue("class", "") == "sense-block");
Then  foreach that just play the def-block once time.
Note: I'm still want get all of h2 tag and def-block(two time because of having 2 div def-block tag)in id 1-1. How???

Answer 1

Thanks, I figured out this my ways to solve it.
I want ask you: How to return Lis<> (async). 
Ex:
public async void loaddata(string id)
var httpClient = new HttpClient();
var srtHtml = await httpClient.GetStringAsync("http://dictionary.cambridge.org/dictionary/british/appeal");
var htmlDoc = new HtmlDocument();
htmlDoc.LoadHtml(srtHtml);
List<Models.EnglishDictionary> arrays = new List<Models.EnglishDictionary>();
var newsListNodehtml = htmlDoc.GetElementbyId("entryContent");
if (newsListNodehtml != null)
var senseblock = newsListNodehtml.Descendants("div").Where(x => x.GetAttributeValue("id", "") == id);
if (senseblock != null)
foreach (var node in senseblock)
Dictionaries = new Models.EnglishDictionary();
var def = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "def");
var examp = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "def-body");
//Dictionaries.Symbol = "/Photos/glasses-50.png";
if (def != null)
Dictionaries.Description = def.InnerText.Trim();
if (examp != null)
Dictionaries.Examp = examp.InnerText.Trim();
var hw = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "hw");
var prsgram = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "posgram");
var word = node.Descendants("span").FirstOrDefault(x => x.GetAttributeValue("class", "") == "guideword");
if (hw != null)
Dictionaries.Word = hw.InnerText.Trim();
if (word != null)
Dictionaries.GuideWord = word.InnerText.Trim();
if (prsgram != null)
Dictionaries.Grammar = prsgram.InnerText.Trim();
arrays.Add(Dictionaries);
else
// error = "No data";
Listview.itemsource=arrays;
I want on ousite it will called back into "itemsource" of lisview.
Ex:Listview.itemsource=loaddata("1-1");
How???