C#如何在webBrowser1控件通过TagName,Name查找元素(没有ID时)遍历窗体元素

//防止页面多次刷新页面执行



            if (num == 1)



            {



                string GetUserName = System.Configuration.ConfigurationSettings.AppSettings["Y2000UserName"].ToString();



                string GetUserPassword = System.Configuration.ConfigurationSettings.AppSettings["Y2000UserPassword"].ToString();



                int a = 1;



                int all = webBrowse东四饭店萨芬r1.Document.Body.All.Count;



                for (int i = 0; i < all; i++)



                {



                    HtmlElement GetElement = webBrowser1.Document.All[i];



                    //取到包含input标签的元素



                    if (GetElement.TagName.ToUpper().ToString() == "INPUT")



                    {



                        //根据input的Name属性，找到该元素并赋值：给用户名输入框赋值



                        if (GetElement.Name.ToString() == "UserName")



                        {



                            webBrowser1.Document.All[i].SetAttribute("value", GetUserName);



                        }

                       士大夫撒 上大夫大沙发 //根据input的Name属性，找到该元素并赋值：给密码输入框赋值



                        if (GetElement.Name.ToString() == "Passwd")



                        {



                            webBrowser1.Document.All[i].SetAttribute("value", GetUserPassword);



                        }1



                    //根据input的Name属性，找到提交按钮并执行动作



                    if (GetElement.Name.ToString() == "Submit")



                    {222222



                        //过滤点击页面中相同"name=Submit"的元素



                        if (a == 1)



                        {



                            webBrowser1.Document.All[i].InvokeMember("click");



                        }



                        a++;



                    }



                }



                num++;



            }