有几个方法,我给你一个最土的,用webbrowser,你实例一个webbrowser对象即可,不需要拖控件,之后去抓取对应网页的HTML,模拟表单事件提交即可。
百度一下C#模拟表单提交,相信你会有收获。
										
					
	
	
	
	      
程序代码:
using System;
using System.Collections.Generic;
using using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using WriteAndReadWebpage;
namespace FirstWebBrower
{
    public partial class FrmWenBrowser : Form
    {
        // 应用程序根目录
        private readonly string executePath;
        // HTML文件名称
        private readonly string htmlFileName;
        // 读取网页实体
        private WebPageControl wpc;
        public FrmWenBrowser()
        {
            InitializeComponent();
            // 初始化
            executePath = System.AppDomain.CurrentDomain.BaseDirectory;
            htmlFileName = executePath + "WebPageDemo.html";
            //htmlFileName = "C:\\Program Files\\Foxmail\\SMIMEHELP\\ENCHELP.html";
            wpc = new WebPageControl(this.webBrowser);
            this.webBrowser.AllowWebBrowserDrop = false;
            this.webBrowser.IsWebBrowserContextMenuEnabled = false;
            this.webBrowser.WebBrowserShortcutsEnabled = false;
            this.cmbNameOrID.SelectedIndex = 0;
            // Event register
            this.Load += new EventHandler(FrmWenBrowser_Load);
            this.btnGetText.Click += new EventHandler(btnGetText_Click);
            this.btnWrite.Click += new EventHandler(btnWrite_Click);
            this.btnCommit.Click += new EventHandler(btnCommit_Click);
            // Web Navigate
            this.btnFoward.Click += new EventHandler(btnFoward_Click);
            this.btnBackward.Click += new EventHandler(btnBackward_Click);
            this.btnStop.Click += new EventHandler(btnStop_Click);
            this.btnRefresh.Click += new EventHandler(btnRefresh_Click);
        }
        // Handling
        // Window Create
        void FrmWenBrowser_Load(object sender, EventArgs e)
        {
            // 加载html文件 & 打开网址
            this.webBrowser.Navigate(htmlFileName);
        }
        
        // 单击按钮Get响应
        void btnGetText_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.txtAttributeName.Text != string.Empty)
                {
                    this.txtText.Text = this.cmbNameOrID.Text == "By Name" ? this.wpc.ReadText(this.txtAttributeName.Text)
                        : this.wpc.ReadTextByID(this.txtAttributeName.Text);
                }
            }
            catch
            {
                MessageBox.Show("读取控件文本失败,请检查网页中是否包含" + this.txtAttributeName.Text + "控件!", 
                    "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        
        //单击按钮Write响应
        void btnWrite_Click(object sender, EventArgs e)
        {
            try
            {
                if (this.txtAttributeName.Text != string.Empty)
                {
                    this.wpc.WriteText(this.txtAttributeName.Text, this.txtText.Text);
                }
            }
            catch
            {
                MessageBox.Show("读取控件文本失败,请检查网页中是否包含" + this.txtAttributeName.Text + "控件!",
                    "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        // 单击按钮Commit响应
        void btnCommit_Click(object sender, EventArgs e)
        {
            try
            {
                //if (this.txtAttributeName.Text != string.Empty)
                //{
                //    this.wpc.WriteText(this.txtAttributeName.Text, this.txtText.Text);
                //}
                if (this.cmbNameOrID.Text == "By Name")
                {
                    this.wpc.ClickButton("btnCommit");
                }
                else
                {
                    //this.wpc.ClickButtonByID("btnContinue");
                }
            }
            catch
            {
                MessageBox.Show("读取控件文本失败,请检查网页中是否包含" + this.txtAttributeName.Text + "控件!",
                    "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
        // 网站导航:向前
        void btnFoward_Click(object sender, EventArgs e)
        {
            this.webBrowser.GoForward();
        }
        // 网站导航:向后
        void btnBackward_Click(object sender, EventArgs e)
        {
            this.webBrowser.GoBack();
        }
        // 网站导航:停止
        void btnStop_Click(object sender, EventArgs e)
        {
            this.webBrowser.Stop();
        }
        // 网站导航:刷新
        void btnRefresh_Click(object sender, EventArgs e)
        {
            this.webBrowser.Refresh();
        }
        private void btnImg_Click(object sender, EventArgs e)
        {
            FrmImage img = new FrmImage();
            HtmlElement imgEle = this.webBrowser.Document.GetElementById("imgIBM");
            HtmlElement imgNew = img.wb.Document.CreateElement("IMG");
            imgNew.SetAttribute("src", imgEle.GetAttribute("src"));
            //img.wb.Document.Body.AppendChild(imgNew);
            img.ShowDialog();
        }
    }
}