单击并突出显示C#Web浏览器

Question

在我开始编码之前,我想我会看到这里是否有人知道已经建立的任何开源(或付费)等价物.

我正在寻找一个浏览器控件,用户可以在其中预览网页,然后突出显示它的元素,一旦突出显示,我可以获得所选元素的div或id.

有没有人见过这样的事情？

Answer 1

这是使用.NET WebBrowser控件的原始版本,它使用Internet Explorer.

namespace WindowsFormsApplication1
{
    using System;
    using System.Collections.Generic;
    using System.Diagnostics;
    using System.Windows.Forms;

    public partial class Form1 : System.Windows.Forms.Form
    {
        private HtmlDocument document;

        private IDictionary<HtmlElement, string> elementStyles = new Dictionary<HtmlElement, string>();

        public Form1()
        {
            InitializeComponent();
        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            this.Text = e.Url.ToString();
            this.document = this.webBrowser1.Document;
            this.document.MouseOver += new HtmlElementEventHandler(document_MouseOver);
            this.document.MouseLeave += new HtmlElementEventHandler(document_MouseLeave);
        }

        private void document_MouseLeave(object sender, HtmlElementEventArgs e)
        {
            HtmlElement element = e.FromElement;
            if (this.elementStyles.ContainsKey(element))
            {
                string style = this.elementStyles[element];
                this.elementStyles.Remove(element);
                element.Style = style;
            }
        }

        private void document_MouseOver(object sender, HtmlElementEventArgs e)
        {
            HtmlElement element = e.ToElement;
            if (!this.elementStyles.ContainsKey(element))
            {
                string style = element.Style;
                this.elementStyles.Add(element, style);
                element.Style = style + "; background-color: #ffc;";
                this.Text = element.Id ?? "(no id)";
            }
        }
    }
}