The first thing to do is to find a suitable proxy server with an IP address and port. Then you should check whether the proxy works by means of a special program or an online service providing such services. The next step is to configure the type of browser you are going to use. The procedure of setting itself depends on the type of browser and does not take much time. After correctly entering the IP address, username and password of the proxy server, don't forget to save the changes you made.

To find an element by its HTML code in Selenium, you can use the ExecuteScript method to execute JavaScript code that returns the element corresponding to the provided HTML code. Here's an example of how to do this using C#:

Install the required NuGet packages:

Install-Package OpenQA.Selenium.Chrome.WebDriver -Version 3.141.0
Install-Package OpenQA.Selenium.Support.UI -Version 3.141.0

Create a method to find an element by its HTML code:

using OpenQA.Selenium;
using OpenQA.Selenium.Support.UI;
using System;
using System.Text.RegularExpressions;

public static IWebElement FindElementByHtml(this IWebDriver driver, string htmlCode)
{
    // Execute JavaScript to create a new element with the provided HTML code
    var script = $@"var div = document.createElement('div'); div.innerHTML = arguments[0]; document.body.appendChild(div); return div.children[0];";
    var element = (IWebElement)driver.ExecuteScript(script, htmlCode);

    // Remove the created element from the DOM
    driver.ExecuteScript("document.body.removeChild(document.body.children[document.body.children.length - 1]);");

    return element;
}

Use the FindElementByHtml method in your test code:

using OpenQA.Selenium;
using System;

namespace SeleniumFindElementByHtmlExample
{
    class Program
    {
        static void Main(string[] args)
        {
            // Set up the WebDriver
            IWebDriver driver = new ChromeDriver();
            driver.Manage().Window.Maximize();

            // Navigate to the target web page
            driver.Navigate().GoToUrl("https://www.example.com");

            // Find an element by its HTML code
            IWebElement element = driver.FindElementByHtml(@"
                

                    
Example Heading
                    
Example paragraph text.
                
");

            // Perform any additional actions as needed

            // Close the browser
            driver.Quit();
        }
    }
}

In this example, we first create a method called FindElementByHtml that takes an IWebDriver instance and a string containing the HTML code as input. Inside the method, we use the ExecuteScript method to execute JavaScript code that creates a new element with the provided HTML code, appends it to the document body, and returns the created element.

We then remove the created element from the DOM using another ExecuteScript call. The method returns the created element as an IWebElement.

In the test code, we set up the WebDriver, navigate to the target web page, and use the FindElementByHtml method to find an element by its HTML code. After finding the element, you can perform any additional actions as needed.

Remember to replace the HTML code in the FindElementByHtml method call with the actual HTML code you want to use.

If PhantomJS doesn't find an element by XPATH, there are a few potential issues that could be causing the problem. Here are some steps you can take to troubleshoot and resolve the issue:

1. Check the XPATH: Make sure the XPATH you're using is correct and points to the right element on the page. You can use browser developer tools to inspect the element and obtain the correct XPATH.

2. Wait for the element to load: Sometimes, the element might not be loaded when the script tries to find it. In such cases, you can use the WebDriverWait class to wait for the element to be present before interacting with it.

Example:

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.PhantomJS()
driver.get("http://example.com")

wait = WebDriverWait(driver, 10)
element = wait.until(EC.presence_of_element_located((By.XPATH, "//your/xpath/here")))

3. Use different locator strategies: If the XPATH is correct but still not working, try using other locator strategies like ID, NAME, or CSS_SELECTOR to locate the element.

4. Update PhantomJS: Make sure you are using the latest version of PhantomJS. Older versions might have issues with certain web pages or elements.

5. Check for JavaScript errors: PhantomJS might not be able to find the element if there are JavaScript errors on the page. Open the page in a regular browser and check for any errors in the console.

6. Use a different headless browser: If PhantomJS continues to give you trouble, consider using a different headless browser like Headless Chrome or Headless Firefox. These browsers are more up-to-date and have better support for modern web technologies.

Remember to replace "//your/xpath/here" with the actual XPATH you are trying to use, and ensure that the XPATH points to the correct element on the page.

Create the first profile by specifying its name and selecting the desired configuration. The configuration is a non-repeating combination of different versions of the operating system and browser. After setting the language, open the "Network" tab and select the type of proxy (socks5 or https). Now it remains only to fill in the data in the highlighted fields to complete the installation of the proxy.

There are HTTP proxy, FTP proxy, SOCKS proxy, SMTP proxy, CGI proxy. They differ only in the data transmission protocol used and the purpose for which they are used. For example, SMTP proxy allows you to organize a secure server for e-mail.