Via that code i have extracted all desired text out of a html document
private void RunThroughSearch(string url)
{
private IWebDriver driver;
driver = new FirefoxDriver();
INavigation nav = driver.Navigate();
nav.GoToUrl(url);
var div = driver.FindElement(By.Id("results"));
var element = driver.FindElements(By.ClassName("sa_wr"));
}
though as i need to refine results of extracted document
Container
HEADER -> Title of a given block
Url -> Link to the relevant block
text -> body of a given block
/Container
as u can see in my code i am able to get the value of the text part
as a text value , that was fine, but what if i want to have
the value of the container as HTML and not the extracted text ?
<div class="container">
<div class="Header"> Title...</div>
<div class="Url"> www.example.co.il</div>
<div class="ResConent"> bla.. </div>
</div>
so the container is about 10 times in a page
i need to extract it's innerHtml .
any ideas ? (using Selenium)
This seemed to work for me, and is less code:
var element = driver.FindElement(By.ClassName("sa_wr"));
var innerHtml = element.GetAttribute("innerHTML");
Find the element first, then use IJavaScriptExecutor to get the inner HTML.
var element = driver.FindElements(By.ClassName("sa_wr"));
IJavaScriptExecutor js = driver as IJavaScriptExecutor;
if (js != null) {
string innerHtml = (string)js.ExecuteScript("return arguments[0].innerHTML;", element);
}
I found the solution from SQA-SO
IWebDriver driver;
IJavaScriptExecutor js = driver as IJavaScriptExecutor;
js.ExecuteScript("document.getElementById("title").innerHTML = "New text!";");
Related
I noticed some results of call to GetAttribute provide not fully decoded strings.
var element = driver.FindElement(By.CssSelector($"#lien_batiment_{id}"));
var href = element.GetAttribute("href");
Actual:
"javascript:f_affiche_contenu(9367718,'coopr_detail_batiment.php?id=9367718&filtre=32&contenuonly=1%27);"
Expected:
"javascript:f_affiche_contenu(9367718,'coopr_detail_batiment.php?id=9367718&filtre=32&contenuonly=1');"
If it was normal, first apostrophe should have been encoded too, and probably & too.
Expected value is provided as well by chrome developper panel. Edge provide the same, and it almost seems logic to have correct decoded JS to execute it with IJavaScriptExecutor.
I use a href= href.Replace("%27","'"), but it's not a serious option if I have js containing real decode %27 sequence.
Any Idea ?
Dependencies :
Selenium.WebDriver.ChromeDriver 103.0.5060.13400
Selenium.WebDriver 4.3.0
Selenium.Support 4.3.0
.Net Framework 4.8
here some more informations to reproduce :
var chromeOptions = new ChromeOptions();
var driverService = ChromeDriverService.CreateDefaultService();
using(var driver = new ChromeDriver(driverService, chromeOptions))
{
driver.Navigate().GoToUrl("https://france2.simagri.com/");
// have to login with account here
driver.FindElement(By.Name("Login")).SendKeys("login");
driver.FindElement(By.Name("Password")).SendKeys("password");
driver.FindElement(By.Name("FAccesCompte")).Submit();
driver.Navigate().GoToUrl("https://france2.simagri.com/liste_batiment.php");
// you need to have some batiments
var id = 9132371; // feed matching one
var element = driver.FindElement(By.CssSelector($"#lien_batiment_{id}"));
var href = element.GetAttribute("href");
}
as you can see, very simple...
Presumably you need to wait a bit for the element to completely render before you extract the href attribute inducing WebDriverWait for the _ElementIsVisible_as follows:
var href = new WebDriverWait(driver, TimeSpan.FromSeconds(30)).Until(ExpectedConditions.ElementIsVisible(By.CssSelector($"#lien_batiment_{id}"))).GetAttribute("href");
Hello i am pretty new in c# sphere. I want to make a little program that will fetch data from the given page.
It is a fragment of website:
<h3 class="filmInfo__header cloneToCast cloneToOtherInfo" data-type="directing-header">reżyseria</h3>
<div class="filmInfo__info cloneToCast cloneToOtherInfo" data-type="directing-info"> <span itemprop="url" content="/person/Rupert+Sanders-1121101"></span> <span itemprop="name">Rupert Sanders</span> </div>
I want to get data from "Data-type="Directing-info" and get a result from title="Rupert Sanders"
Somebody can help me ?
My very simple code:
private void button1_Click(object sender, EventArgs e)
{
var url = "https://www.filmweb.pl/film/Kr%C3%B3lewna+%C5%9Anie%C5%BCka+i+%C5%81owca-2012-600541";
var httpClient = new HttpClient();
var html = httpClient.GetStringAsync(url);
textBox1.Text = (html.Result);
}
C# or .NET does not offer native HTML parsing functionality. However, there are a handful of libraries which provides HTML parsing functionality. For example, you can use Html Agility Pack.
First, you need to install it into your project. You can easily install it with NuGet Package Manager in Visual Studio if you use it.
After that, you can use it like this with your input HTML:
private void button1_Click(object sender, EventArgs e)
{
var url = "https://www.filmweb.pl/film/Kr%C3%B3lewna+%C5%9Anie%C5%BCka+i+%C5%81owca-2012-600541";
var httpClient = new HttpClient();
var html = httpClient.GetStringAsync(url);
// Create a HtmlDocument and load your HTML into it.
var htmlDocument = new HtmlDocument();
htmlDocument.LoadHtml(html.Result);
// Find your desired node inside it.
HtmlNode directingInfoNode = htmlDocument.DocumentNode.SelectSingleNode("//div[#data-type='directing-info']/a");
// Get the title attribute of that node.
HtmlAttribute titleAttribute = directingInfoNode.Attributes["title"];
textBox1.Text = (titleAttribute.Value);
}
Of course, you will need to put necessary using statement to the top of your file:
using HtmlAgilityPack;
I am trying to get element by using x-path tree element but showing null, and this type of x-path work for other site for me, only 2% site this types of X-Path not working, also i tried x-path from chrome also but when my x-path not work that time chrome x-path also not work.
public static void Main()
{
string url = "http://www.ndrf.gov.in/tender";
HtmlWeb web = new HtmlWeb();
var htmlDoc = web.Load(url);
var nodetest1 = htmlDoc.DocumentNode.SelectSingleNode("/html[1]/body[1]/section[2]/div[1]/div[1]/div[1]/div[1]/div[2]/table[1]"); // i want this type // not wroking
//var nodetest2 = htmlDoc.DocumentNode.SelectSingleNode("//*[#id=\"content\"]/div/div[1]/div[2]/table"); // from Google chrome // not wroking
//var nodetest3 = htmlDoc.DocumentNode.SelectSingleNode("//*[#id=\"content\"]"); // by ID but i don't want this type // wroking
Console.WriteLine(nodetest1.InnerText); //fail
//Console.WriteLine(nodetest2.InnerText); //fail
//Console.WriteLine(nodetest3.InnerText); //proper but I don't want this type
}
The answer that #QHarr suggested works perfectly, But the reason you get null with a correct x-path, is that there is a javascript file in the header of the site, that adds a wrapper div around the table, and since getting result in HtmlAgilityPack seems not loading or executing js, the x-path returns null.
what you observe, after that js runs is:
<div class="view-content">
<div class="guide-text">
...
</div>
<div class="scroll-table1">
<!-- Your table is here -->
</div>
</div>
but what actually you get whithout that js, is:
<div class="view-content">
<!-- Your table is here -->
</div>
thus your x-path should be:
var nodetest1 = htmlDoc.DocumentNode.SelectSingleNode("/html[1]/body[1]/section[2]/div[1]/div[1]/div[1]/div[1]/table[1]");
Your xpath when used in browser selects for entire table. You can shorten and use as follows (fiddle):
using System;
using HtmlAgilityPack;
public class Program
{
public static void Main()
{
string url = "http://www.ndrf.gov.in/tender";
HtmlWeb web = new HtmlWeb();
var htmlDoc = web.Load(url);
var nodetest1 = htmlDoc.DocumentNode.SelectSingleNode("//table");
Console.WriteLine(nodetest1.InnerText);
}
}
Use Fizzler.Systems.HtmlAgilityPack
details here : https://www.nuget.org/packages/Fizzler.Systems.HtmlAgilityPack/
This library adds extension methods called QuerySelector and QuerySelectorAll, that takes CSS Selector not XPath.
Ali Bordbar caught perfect, This Url adds a wrapper div when I navigating URL in WebBrowser control in this all JavaScript file are loaded,
but when i load URL using HtmlWeb there is none of the JavaScript file loaded.
The HtmlWeb retrieves the static HTML response that the server sends, and does not execute any javascript, whereas a WebBrowser would.
So WebBrowser control HTML DOM data XPath and HtmlWeb HTML DOM data XPath not match.
My below code work perfect for this switchvation
HtmlWeb web = new HtmlWeb();
web.AutoDetectEncoding = true;
HtmlAgilityPack.HtmlDocument theDoc1 = web.Load("http://www.ndrf.gov.in/tender");
var HtmlDoc = new HtmlAgilityPack.HtmlDocument();
var bodytag = theDoc1.DocumentNode.SelectSingleNode("//html");
HtmlDoc.LoadHtml(bodytag.OuterHtml);
var xpathHtmldata = HtmlDoc.DocumentNode.SelectSingleNode(savexpath); //savexpath is my first xpath make from HTML DOM data of WebBrowser control which is work for most url.
if (xpathHtmldata == null)
{
//take last tag name from first xpath
string mainele = savexpath.Substring(savexpath.LastIndexOf("/") + 1);
if (mainele.Contains("[")) { mainele = mainele.Remove(mainele.IndexOf("[")); }
//collect all tag name with name of which is sotre in mainele variable
var taglist = HtmlDoc.DocumentNode.SelectNodes("//" + mainele);
foreach (var ele in taglist) //check one by one element
{
string htmltext1 = ele.InnerText;
htmltext1 = Regex.Replace(htmltext1, #"\s", "");
htmltext1 = htmltext1.Replace("&", "&").Trim();
htmltext1 = htmltext1.Replace(" ", "").Trim();
string htmltext2 = saveInnerText; // my previus xpath text from HTML DOM data of WebBrowser control
htmltext2 = Regex.Replace(htmltext2, #"\s", "");
if (htmltext1 == htmltext2) // check equality to my previus xpath text..if it is equal thats my new xpath
{
savexpath = ele.XPath;
break;
}
}
}
I have to check the page's canonical tag, but I have a problem when the href is empty.
This is the code:
ChromeOptions chromeCapabilities = new ChromeOptions();
chromeCapabilities.AddArguments("disable-infobars");
IWebDriver webDriver = new ChromeDriver(chromeCapabilities);
webDriver.Manage().Window.Maximize();
webDriver.Navigate().GoToUrl("https://www.example.com/subpage/page");
List <IWebElement> linkElements = webDriver.FindElements(By.TagName("link")).ToList();
string canonicalHref = linkElements.Find(x => String.Compare(x.GetAttribute("rel"), "canonical") == 0).GetAttribute("href");
//debug
var html = linkElements.Find(x => String.Compare(x.GetAttribute("rel"), "canonical") == 0);
Console.WriteLine(html.GetAttribute("outerHTML")); //<link href="" rel="canonical" />
Console.WriteLine(html.GetAttribute("href")); // should be "" but I get https://www.example.com/subpage/page
Console.WriteLine(html.GetAttribute("rel")); //canonical
Console.WriteLine(canonicalHref); // should be "" but I get https://www.example.com/subpage/page
Wrong settings example:
And I get the URL not empty string... but why? Did I call the wrong attribute? Any idea to get the real value?
The method GetAttribute returns the DOM property if it's present or the HTML attribute if the property is missing. It looks like the page changed the property.
To get the HTML attribute, you'll have to use a script injection:
string href = (string)((IJavaScriptExecutor)driver).ExecuteScript(
"return arguments[0].getAttribute('href') || '';",
link)
I have been trying to download an public Instagram profile to the fetch stats such as followers and bio. I have been doing this in a c# console application and downloading the HTML using HTML Agility Pack.
Code:
string url = #"https://www.instagram.com/" + Console.ReadLine() + #"/?hl=en";
Console.WriteLine();
HtmlWeb web = new HtmlWeb();
HtmlDocument document = web.Load(url);
document.Save(path1);
When I save it though all I get is a bunch of scripts and a blank screen:
I was wondering how to save the html once all the scripts had run and formed the content
When you retrieve content using a web request, it returns a HTML document which is then rendered by the browser to display the content.
Right now, you're saving the HTML document given to you by the server. Instead of doing this, you need to render it before getting the details. One way to do this is using a web browser control. If you set the URL to the instragram URL, let the rendering engine handle it and once the load event is fired by the control, you can get the rendered HTML output.
From there, you can deserialize as an XmlDocument and identify exactly what details you need to retrieve from the rendered output.
public MainWindow()
{
InitializeComponent();
WB_1.Navigate(#"https://www.instagram.com/" + Console.ReadLine() + #"/?hl=en");
WB_1.LoadCompleted += wb_LoadCompleted;
}
void wb_LoadCompleted(object sender, NavigationEventArgs e)
{
dynamic doc = WB_1.Document;
string htmlText = doc.documentElement.InnerHtml;
}
ANSWER
Thanks for the suggestions on how to download the HTML! I managed to return some instagram information in the end. Here is the code:
//(This was done using HTML Agility Pack)
string url = #"https://www.instagram.com/" + Console.ReadLine() + #"/?hl=en";
HtmlWeb web = new HtmlWeb();
HtmlDocument document = web.Load(url);
var metas = document.DocumentNode.Descendants("meta");
var followers = metas.FirstOrDefault(_ => _.HasProperty("name", "description"));
if (followers == null) { Console.WriteLine("Sorry, Can't Find Profile :("); return; }
var content = followers.Attributes["content"].Value.StopAt('-');
Console.WriteLine(content);
And HasProperty() & StopAt()
public static bool HasProperty(this HtmlNode node, string property, params string[] valueArray)
{
var propertyValue = node.GetAttributeValue(property, "");
var propertyValues = propertyValue.Split(' ');
return valueArray.All(c => propertyValues.Contains(c));
}
public static string StopAt(this string input, char stopAt)
{
int x = input.IndexOf(stopAt);
return input.Substring(0, x);
}
NOTE:
However this is still not the answer I am looking for. I still have a wreck of HTML which is not structred the same as the HTML I recieve when I look at it in Google Chrome. Doing some searching in the HTML I managed to scalvage the content-less html for a meta tag which contains the content. This is okay for this but if I going to continue this method of finding HTML content then it may not be the same :(