C#：在WebBrowser控件中阻止alert[警告框],confirm[确认对话框]对话框」及解析网页框架集\触发按钮事件

时间：2010-09-09 来源：且行且思

代码 using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using mshtml;

namespace GoodClient
{
    public partial class FrmMain : Form
    {
        public FrmMain()
        {
            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (this.comboBox1.Text != "")
            {
                try
                {
                    webBrowser1.Navigate(this.comboBox1.Text);
                }
                catch { }
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (this.comboBox2.Text != "")
            {
                try
                {
                    webBrowser2.Navigate(this.comboBox2.Text);
                }
                catch { }
            }
        }

        /*在WinForm中设置要使用组合键的窗体的KeyPreview(向窗体注册键盘事件)属性为True;
          然后使用窗体的KeyDown事件(在首次按下某个键时发生).
        */
        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {

            if (e.KeyCode == Keys.F5)
            {
                button1_Click(sender,  e);
            }
            if (e.KeyCode == Keys.F6)
            {
                button2_Click(sender, e);
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.comboBox1.Text = http://aaaa.com/;
        }

        private void button3_Click(object sender, EventArgs e)
        {

            if (webBrowser1.Document.Window.Frames == null)
                return;

            HtmlDocument htmlDoc = webBrowser1.Document.DomDocument as HtmlDocument;
            int row = 0;

            //订单页
            this.textBox1.Text = webBrowser1.Document.Window.Frames[0].Frames[1].Document.Body.InnerHtml;

            // row = webBrowser1.Document.Window.Frames.Count;
            //for (int i = 0; i < row; i++)
            //{
            //    MessageBox.Show(webBrowser1.Document.Window.Frames[i].Document.Body.InnerHtml, row.ToString() + "A");

            //}

            ////框架集
            // row = webBrowser1.Document.Window.Frames[0].Frames.Count;
            //for (int i = 0; i < row; i++)
            //{
            //    //MessageBox.Show(webBrowser1.Document.Window.Frames[0].Frames[i].Document.Body.InnerHtml , i.ToString() + "B");
            //    //MessageBox.Show(webBrowser1.Document.Window.Frames[0].Frames[i].Name, i.ToString() + "Name");
            //}

            ////左框架列表页
            row = webBrowser1.Document.Window.Frames[0].Frames[2].Frames.Count;
            for (int i = 0; i < row; i++)
            {
               // MessageBox.Show(webBrowser1.Document.Window.Frames[0].Frames[2].Frames[i].Document.Body.InnerHtml, i.ToString() + "T");
                this.textBox2.Text = webBrowser1.Document.Window.Frames[0].Frames[2].Frames[i].Document.Body.InnerHtml;
            }

            //htmlDoc = webBrowser1.Document.Window.Frames[0].Frames[2].Frames[1].Document;
            //System.Windows.Forms.HtmlElementCollection myLiks = htmlDoc.Links;
            //foreach (HtmlElement link in myLiks)
            //{
            //    this.textBox1.Text += link.GetAttribute("href") + "\r\n ";
            //}

        }

        private void button4_Click(object sender, EventArgs e)
        {

            HtmlDocument htmlDoc = webBrowser1.Document.Window.Frames[0].Frames[2].Frames[1].Document;
            System.Windows.Forms.HtmlElementCollection myLiks = htmlDoc.Links;
            string tmp_ads_url = "&type=C&gnum=30241&odd_f_type=H";
            foreach (HtmlElement link in myLiks)
            {
                if (link.GetAttribute("href").Contains(tmp_ads_url))
                {
                    link.InvokeMember("click");

                    break;
                }
            }

        }

        private void button6_Click(object sender, EventArgs e)
        {

            HtmlDocument htmlDoc = webBrowser1.Document.Window.Frames[0].Frames[1].Document;
            foreach (HtmlElement h in htmlDoc.All)
            {
                if (h.GetAttribute("type").ToString() == "button")
                {

                    if (h.GetAttribute("value").ToString() == "确定")
                    {
                        h.InvokeMember("onclick");
                        break;
                    }
                }
            }

        }

        private void button5_Click(object sender, EventArgs e)
        {
            HTMLDocument doc = webBrowser1.Document.DomDocument as HTMLDocument;
            HtmlWindow window = webBrowser1.Document.Window.Frames[0].Frames[1];
            doc = window.Document.DomDocument as HTMLDocument;

            HTMLInputElementClass input = doc.all.item("gold", 0) as HTMLInputElementClass;
            input.value = "1";



        }
        //阻止alert[警告框],confirm[确认对话框]对话框
        private void webBrowser1_Navigated(object sender, WebBrowserNavigatedEventArgs e)
        {
            //IHTMLDocument2 vDocument = (IHTMLDocument2)webBrowser1.Document.DomDocument;
            //vDocument.parentWindow.execScript(
            //    "function alert(str){if(str=='未输入下注金额')confirm(str);}", "javaScript");

            HtmlDocument doc = webBrowser1.Document.Window.Frames[0].Frames[1].Document;
            //框架结构中，必须正确的指定目标框架
            IHTMLWindow2 win = (IHTMLWindow2)doc.Window.DomWindow;

            string s = @"function confirm() {";
            s += @"return true;";
            s += @"}";

            s += @"function alert() {}";

            win.execScript(s, "javascript");

        }

       //***********************************************************************************************
        //HtmlWindow window = webBrowser1.Document.Window.Frames[0].Frames[2].Frames[1];
        //htmlDoc = window.Document.DomDocument as HtmlDocument;
        ////this.textBox2.Text = htmlDoc.Body.InnerHtml;
        //按钮点击事件
        //HtmlElement btnElement = htmlDoc.All["btnClose"];
        //if (btnElement != null)
        //{
        //     btnElement.Click += new HtmlElementEventHandler(btnElement_Click);
        //}

//doc.GetElementById("SearchUnitBtn").InvokeMember("click");

        //*******************************************************************************************
        ////存取网页的DOM元素：
        ////HtmlElement euser = webBrowser1.Document.All["txtUserName"];
        ////HtmlElement bSubmit = webBrowser1.Document.All["Button1"];

////euser.SetAttribute("value","想设置的值"); //设置DOM元素value属性
////bSubmit.InvokeMember("click"); //激发该元素的click事件

}
}