webBrowser控件实现自动登录Gmail邮件的实例

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

namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            webBrowser1.Url = new Uri("http://www.gmail.com");
        }

        private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            HtmlElement txtUserHtml = webBrowser1.Document.All["Email"];
            HtmlElement txtPasswordHtml = webBrowser1.Document.All["Passwd"];
            HtmlElement btnClickHtml = webBrowser1.Document.All["signIn"];


            txtUserHtml.SetAttribute("value", "这里填写用户名");//输入用户名
            txtPasswordHtml.SetAttribute("value", "这里填写密码");//输入密码
            btnClickHtml.InvokeMember("click");
        }
    }
}