具有单击和突出显示 Frame/iFrame 元素的 C# Web 浏览器 [英] C# Web Browser with click and highlight of Frame/iFrame elements

问题描述

我正在寻找一个浏览器控件，用户可以在其中预览网页中的框架/iframe，然后突出显示其中的元素，一旦突出显示，我就可以获得所选元素的 div 或 id.

Iam looking for a browser control where users can preview frame/iframe in web page and then highlight elements of it and once highlighted, I can get the div or id of the element selected.

有什么办法可以做到吗?

Is there any way we can do it ?

推荐答案

我有另一种方法...

          using System.Runtime.InteropServices;

声明一个委托

          public delegate void DOMEvent(IHTMLEventObj e);

  private void webBrowser1_DocumentCompleted_1(object sender, WebBrowserDocumentCompletedEventArgs e)
    {

        if (this.webBrowser1.ReadyState != WebBrowserReadyState.Complete)

            return;
        else
        {

            HTMLDocument htmlDoc = (HTMLDocument)this.webBrowser1.Document.DomDocument;
            DispHTMLDocument doc = (DispHTMLDocument)htmlDoc;

            DOMEventHandler onmousedownhandler = new DOMEventHandler(doc);
            onmousedownhandler.Handler += new DOMEvent(Mouse_Down);
            doc.onmousedown = onmousedownhandler;

            if (htmlDoc.frames.length > 0)
            {
                FramesCollection FrameList = htmlDoc.frames;

                for (int i = 0; i < FrameList.length; i++)
                {
                    object id = (object)i;

                    IHTMLWindow2 frameWindow = (IHTMLWindow2)FrameList.item(ref id);
                    HTMLDocument frameDoc = (HTMLDocument)frameWindow.document;
                    DispHTMLDocument frameDispDoc = (DispHTMLDocument)frameDoc;
                    DOMEventHandler onmousedownhand = new DOMEventHandler(frameDispDoc);
                    onmousedownhand.Handler += new DOMEvent(Mouse_Down);
                    frameDispDoc.onmousedown = onmousedownhand;

                }
            }

        }
    }


        public class DOMEventHandler
        {
        public DOMEvent Handler;
        DispHTMLDocument Document;
        public DOMEventHandler(DispHTMLDocument doc)
        {

            this.Document = doc;

        }
        [DispId(0)]

        public void Call()
        {
            Handler(Document.parentWindow.@event);
        }
    }

       public void Mouse_Down(IHTMLEventObj e)
        {
        IHTMLElement element = (mshtml.IHTMLElement)e.srcElement;
        label1.Text = element.id;

         }

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