我想弄一个注册一个网站的程序，在winform里有两个button和一个webBrowser控件，代码如下，想了很久都还是不会怎么在webBrowser控件打开的网页里填写内容，然后实现自动注册的功能，有高手帮帮忙……      小弟qq联系联系我
public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button2_Click(object sender, EventArgs e)  //这个按钮是打开网页
        {
            string url = "http://signup.         
            webBrowser1.Navigate(url);           
         /*   System.Uri url = new Uri("http://signup.);
            webBrowser1.Url = url ;
            */
        }

        private void button1_Click(object sender, EventArgs e)   //实现自动填写的按钮事件
        {
                     
            string name = txtName.Text;
            string age = txtAge.Text;
            string pwd = txtPwd.Text;
            string rpwd = txtPwd.Text;
            
            HtmlDocument doc = null;
            doc = webBrowser1.Document;

            HtmlElement btnSubmit = webBrowser1.Document.All["submitbutton"];
            HtmlElement tbUserid = webBrowser1.Document.All["username"];
            HtmlElement tbPasswd = webBrowser1.Document.All["password"];

            if (tbUserid == null || tbPasswd == null || btnSubmit == null)
                return;

            tbUserid.SetAttribute("value",name);
            tbPasswd.SetAttribute("value", pwd);

            btnSubmit.InvokeMember("click"); ;
            HtmlElement formLogin = webBrowser1.Document.Forms["loginForm"];
            //……
            formLogin.InvokeMember("submit");
            
      
      
        }

                }