页面刷新后Selenium C#陈旧元素错误

我有一个问题，机器人给了一个错误的“过时的元素”，但它只是在第一个“军官”。起初我认为这与没有足够的时间刷新页面有关，因此技术上元素不存在，但在我添加了thread.sleep之后，它仍然抛出错误

using System;
using System.Threading;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Support.Extensions;
using OpenQA.Selenium.Support.UI;

namespace bot_test
{

    class Program
    {
        static void Main(string[] args)
        {
            //  url used to create this -https://www.guru99.com/selenium-csharp-tutorial.html 

            IWebDriver driver = new ChromeDriver("C:\\");

            // To change the date to find and replace datetovar to the date 
            //To change the date from find and replace darefromvar to the date
            // Don't forget to switch the date back to the var format

            string datefromvar = "12/05/2019";
            string datetovar = "12/21/2019";


            driver.Url = "https://odyssey.gwinnettcourts.com/Portal/Home/Dashboard/26";
            driver.Manage().Window.Maximize();

            //  Officer 1- Argo, James .R

            // Category Select
            IWebElement typeElement = driver.FindElement(By.Id("cboHSSearchBy"));
            var typeSelect = new SelectElement(typeElement);
            typeSelect.SelectByValue("JudicialOfficer");



            // JudicialOfficer ID
            IWebElement officerId = driver.FindElement(By.Id("selHSJudicialOfficer"));
            var officerIdSelect = new SelectElement(officerId);
            officerIdSelect.SelectByValue("12942");

            // Date From
            IWebElement fromDate = driver.FindElement(By.Id("SearchCriteria_DateFrom"));
            fromDate.SendKeys(datefromvar);

            // Date To
            IWebElement toDate = driver.FindElement(By.Id("SearchCriteria_DateTo"));
            toDate.SendKeys(datetovar);

            // Click Button
            IWebElement buttonSubmitElement = driver.FindElement(By.Id("btnHSSubmit"));

            buttonSubmitElement.Click();

            driver.Navigate().Back();

            driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(15);

            //  Officer 2- Assistance, Judicial

            Thread.Sleep(2000);

            IWebElement typeElement2 = driver.FindElement(By.Id("cboHSSearchBy"));
            typeSelect.SelectByValue("JudicialOfficer");

            IWebElement officerId2 = driver.FindElement(By.Id("selHSJudicialOfficer"));
            officerIdSelect.SelectByValue("19024"); //Assistance, Judicial

            fromDate.SendKeys(datefromvar);

            toDate.SendKeys(datetovar);

            buttonSubmitElement.Click();

            driver.Navigate().Back();

            driver.Manage().Timeouts().ImplicitWait = TimeSpan.FromSeconds(6);

            //  Officer 3- Ballar Christopher, A

            Thread.Sleep(2000);

            IWebElement typeElement3 = driver.FindElement(By.Id("cboHSSearchBy"));
            typeSelect.SelectByValue("JudicialOfficer");

            IWebElement officerId3 = driver.FindElement(By.Id("selHSJudicialOfficer"));
            officerIdSelect.SelectByValue("12933"); //Ballar Christopher, A

            fromDate.SendKeys(datefromvar);

            toDate.SendKeys(datetovar);


            buttonSubmitElement.Click();

            driver.Navigate().Back();
}
}
}

---

我对此进行了更多的研究，发现问题在于，每次刷新新页面时，我没有为“typeElement”、“OfficerSelect”、“toDate”、“fromDate”和“ButtonsSubmitement”声明新的web元素，这导致我试图使用的元素变得过时

下面是修复错误的新代码

它可能不是最有效的，因为我不是C#或Selenium大师，但它很有效

//  Officer 3- Ballar Christopher, A

            Thread.Sleep(2000);

            IWebElement typeElement3 = driver.FindElement(By.Id(elemSrchByStr));
            var typeSelect3 = new SelectElement(typeElement3);
            typeSelect3.SelectByValue(judOfficer);

            IWebElement officerId3 = driver.FindElement(By.Id(officerSrchByStr));
            var officerIdSelect3 = new SelectElement(officerId3);
            officerIdSelect3.SelectByValue("12933"); //Ballar Christopher, A

            IWebElement fromDate3 = driver.FindElement(By.Id(srchDateFrom));
            fromDate3.SendKeys(dateFromVar);

            IWebElement toDate3 = driver.FindElement(By.Id(srchDateTo));
            toDate3.SendKeys(dateToVar);

            IWebElement buttonSubmitElement3 = driver.FindElement(By.Id(button));
            buttonSubmitElement3.Click();

            driver.Navigate().Back();

---

您了解什么是StaleElementException以及它的原因吗？如果没有，你应该花些时间研究它。一旦你明白了这一点，修复它就会容易得多。我已经做了更多的研究，并添加了一个答案。出于某种原因，我认为这将是一个更复杂的解决方案。