HtmlAgilityPack을 사용하여 html 요소의 너비와 높이를 가져 오려고합니다.

이 페이지의베이스 : page

public sealed class UtilParserHTML
{

    //Private Fields
    private Uri Uri;
    private Stream StreamPage;
    private HttpWebRequest HttpRequest;
    private HttpWebResponse HttpResponse;

    //Public Fields
    public HtmlDocument HtmlDocument { private set; get; }

    public UtilParserHTML()
    {
        if (this.HtmlDocument == null)
            HtmlDocument = new HtmlDocument();
    }

    public void LoadHTMLPage(string UrlPage)
    {
        if (string.IsNullOrEmpty(UrlPage))
            throw new ArgumentNullException("");

        CookieContainer cookieContainer = new CookieContainer();

        this.Uri = new Uri(UrlPage);
        this.HttpRequest = (HttpWebRequest)WebRequest.Create(UrlPage);
        this.HttpRequest.Method = WebRequestMethods.Http.Get;       
        this.HttpRequest.CookieContainer = cookieContainer;
        this.HttpResponse = (HttpWebResponse)this.HttpRequest.GetResponse();
        this.StreamPage = this.HttpResponse.GetResponseStream();
        this.HtmlDocument.Load(StreamPage);
    }

    public void LoadHTMLPage(FileStream StreamPage)
    {
        if (StreamPage == null)
            throw new ArgumentNullException("");

        HtmlDocument.Load(StreamPage);
    }

    public HtmlNodeCollection GetNodesByExpression(string XPathExpression)
    {
        if (string.IsNullOrEmpty(XPathExpression))
            throw new ArgumentNullException("");

        return this.HtmlDocument.DocumentNode.SelectNodes(XPathExpression);
    }

XPath 를 사용하여 html로 이동합니다. 이 경우에는이 Xpath 식을 사용했습니다. // div [@ class = 'arrowRibbon'] // img

봐봐 ...

this.ParserHTML.LoadHTMLPage("http://www.img.com.br/default.aspx");
            HtmlNodeCollection HtmlNodeCollectionResult = this.ParserHTML.GetNodesByExpression(Page.XPathExpression);

            if (HtmlNodeCollectionResult != null)
            {
                foreach (HtmlNode NodeResult in HtmlNodeCollectionResult)
                {
                    var src = NodeResult.Attributes["src"].Value;
                }
            }

...

편집하다

너비와 높이를 가진이 완벽한 예제를 보라.

this.ParserHTML.LoadHTMLPage("http://www.w3schools.com/tags/tag_img.asp");
            HtmlNodeCollection HtmlNodeCollectionResult = this.ParserHTML.GetNodesByExpression("//div[@class='tryit_ex'] //img");

            if (HtmlNodeCollectionResult != null)
            {
                foreach (HtmlNode NodeResult in HtmlNodeCollectionResult)
                {
                    var src = NodeResult.Attributes["src"].Value;
                    var w = NodeResult.Attributes["width"].Value;
                    var h = NodeResult.Attributes["height"].Value;
                }
            }

희망이 도움이됩니다.