Develop Reference

I want to parse this website url "https://www.171chryslerdodgejeepram.com/" to get value of DealerId but I have no idea how to do it

foreach (HtmlNode node in doc.DocumentNode.SelectNodes("//script").Where(x => x.InnerHtml.Contains("DealerId:")))
{
}
I am trying to get value of dealer id with the help of above code but it is not returning anything, but if you trying to find DealerId from page source of above website then it is there. please help me to achieve this or if anything wrong with above code then please correct me.

you can parse JS code with something like (https://github.com/sebastienros/jint) and extract the field you need from JS object
you can simple find this text (not elegant, but works):
UPD1: regex version
static void Main(string[] args)
{
var url = "https://www.171chryslerdodgejeepram.com/";
var web = new HtmlWeb();
var doc = web.Load(url);
foreach (HtmlNode node in doc.DocumentNode.SelectNodes("//script").Where(x => x.InnerHtml.Contains("dealerId:")))
{
var s = node.InnerText;
Regex r = new Regex(#"dealerId:\s+'(\d+)'");
Match m = r.Match(s);
Console.WriteLine(m.Groups[1].Value);
}
Console.ReadKey();
}

var url = "https://www.171chryslerdodgejeepram.com/";
var web = new HtmlWeb();
var doc = web.Load(url);
foreach (HtmlNode node in doc.DocumentNode.SelectNodes("//script").Where(x => x.InnerHtml.ToLower().Contains("dealerid")))
{
AdwordsAccount info = new AdwordsAccount();
var s = node.InnerText;
//Regex r = new Regex("dealerid(.*?)\",");
Regex r = new Regex(#"dealerId:\s+'(\d+)'");
Match m = r.Match(s.ToLower());
info.account = m.Groups[1].Value;
urlinfo.adwordsaccount.Add(info);
}
#cereberus this is my code

C# (Xamarin): looping through XML

I have a Xamarin (C#) project, where I am trying to loop through some XML, but for some reason my code is not working.
This is what I have now:
DeviceList = new List<DeviceInfo>();
string ResultStatus = "";
string ResultDevice = "";
var result = Encoding.Default.GetString(e.Result);
result = "<?xml version=\"1.0\" encoding=\"utf-8\"?>" + result;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(result);
string xPathStatus = "ed_listdevices";
var nodes = xmlDoc.SelectNodes(xPathStatus);
foreach (XmlNode xNode in nodes) {
ResultStatus = xNode.SelectSingleNode("//status").InnerText;
ResultDevice = xNode.SelectSingleNode("//device").InnerText;
}
if (ResultStatus.ToLower() == "ok") {
XmlDocument deviceDoc = new XmlDocument();
deviceDoc.LoadXml(result);
var deviceNodes = deviceDoc.SelectNodes(xPathStatus + "/device");
//foreach(XmlNode dNode in deviceNodes) {
for (int i = 0; i < deviceNodes.Count; i++) {
DeviceList.Add(new DeviceInfo() {
DeviceID = deviceNodes[i].SelectSingleNode("//id").InnerXml,
DeviceName = deviceNodes[i].SelectSingleNode("//name").InnerXml,
DeviceExtraName = "",
DeviceOnlineStatus = deviceNodes[i].SelectSingleNode("//status").InnerXml,
Location = deviceNodes[i].SelectSingleNode("//address").InnerXml,
Time = deviceNodes[i].SelectSingleNode("//time").InnerXml
});
}
}
When I step though the code I get the "ResultStatus" and "ResultDevice" correctly, and when I get to the
for (int i = 0; i < deviceNodes.Count; i++)
the "deviceNodes" variable have a count of 91, and I can see all the individual xml elements that I am suppose to get from the webservice I am calling.
However, when I loop through deviceNodes[i] I only get values from the very first XML element (yes, the value of "i" does change). In other words, my DeviceList is filled with 91 entries with the same values.
Am I missing something obvious?? What am I doing wrong since this isn't working??
PS: I have also tried using a foreach (XmlNode node in deviceNodes) but the result was the same.

"//" in the selector tells it to search from the root node of the document. If you want to search locally under the "current" node, remove the "//"

Not able to read XML string in C#

I have created a XML string and Looping that to get value. But its not entering in foreach loop. But in my other code same loop code is working.
my code is :
XML string:
<SuggestedReadings>
<Suggestion Text="Customer Centricity" Link="http://wdp.wharton.upenn.edu/book/customer-centricity/?utm_source=Coursera&utm_medium=Web&utm_campaign=custcent" SuggBy="Pete Fader�s" />
<Suggestion Text="Global Brand Power" Link="http://wdp.wharton.upenn.edu/books/global-brand-power/?utm_source=Coursera&utm_medium=Web&utm_campaign=glbrpower" SuggBy="Barbara Kahn�s" />
</SuggestedReadings>
Code Is:
string str = CD.SRList.Replace("&", "&");
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(str);
XmlNode SuggestionListNode = xmlDoc.SelectSingleNode("/SuggestedReadings/Suggestion");
foreach (XmlNode node in SuggestionListNode)
{
COURSESUGGESTEDREADING CSR = new COURSESUGGESTEDREADING();
var s = db.COURSESUGGESTEDREADINGS.OrderByDescending(o => o.SRID);
CSR.SRID = (s == null ? 0 : s.FirstOrDefault().SRID) + 1;
CSR.COURSEID = LibId;
CSR.TEXT = node.Attributes.GetNamedItem("Text").Value;
CSR.LINK = node.Attributes.GetNamedItem("Link").Value; ;
CSR.SUGBY = node.Attributes.GetNamedItem("SuggBy").Value; ;
CSR.ACTIVEFLAG = "Y";
CSR.CREATEDBY = CD.CreatedBy;
CSR.CREATEDDATE = DateTime.Now;
db.COURSESUGGESTEDREADINGS.Add(CSR);
}

You should use SelectNodes, not SelectSingleNode, since you are trying to get multiple rows out of the XML document.
Use this:
XmlNodeList SuggestionListNode = xmlDoc.SelectNodes("//Suggestion");
foreach (XmlNode node in SuggestionListNode)
{
}

You can try this.
XDocument xdoc = XDocument.Load("data.xml");
var xmlData = from lv1 in xdoc.Descendants("Suggestion")
select new {
Text = lv1.Attribute("Text").Value,
Link = lv1.Attribute("Link").Value,
SuggBy = lv1.Attribute("SuggBy").Value
};
foreach (var item in xmlData){
// your logic here
}

Add XmlNode to XmlElement

I get a soap envelope back from a web service with customer data such as name and address etc. The address does not contain city/suburb but postcode. I have all the city and suburbs with their post codes in a CSV file so I want to insert the correct name for each post code. I can store it in a database or something else but this is more about how to insert the node before I pass the data on.
The code is like :
XmlDocument xDoc = new XmlDocument();
xDoc.LoadXml(searchResponse);
XmlNamespaceManager nsmgr = new XmlNamespaceManager(xDoc.NameTable);
nsmgr.AddNamespace("ns", wsNamespace);
XmlNodeList postCodeNodes = xDoc.SelectNodes("//ns:postcode", nsmgr);
string applicationPath = AppDomain.CurrentDomain.BaseDirectory;
foreach (XmlNode node in postCodeNodes)
{
using (StreamReader readFile = new StreamReader(applicationPath + "postcodes.csv"))
{
string line;
string[] row;
while ((line = readFile.ReadLine()) != null)
{
row = line.Split(',');
if (row[0].ToString() == node.InnerText)
{
string suburb = row[1].ToString();
//XmlNode ndSuburb = xDoc.CreateElement("suburb");
//ndSuburb.Value = suburb;
//node.ParentNode.AppendChild(ndSuburb);
break;
}
}
}
}
and I am not sure what to do where I have commented out the code. Any suggestions? Tips on how to make this more efficient would also be appreciated.
Thanks in advance.

Well, it's a bit hard to know without actually seeing the XML structure that exists and the desired new XML structure. Basically I'd assume that you want a new XML node containing the suburb at the same level as the postcode element.
In that case, I'd used:
XmlElement elem = xDoc.CreateElement("suburb");
elem.InnerText = ...;
node.ParentNode.AppendChild(elem);
EDIT
As for efficiency: Why don't you read your "postcode file" only once, adding the entries to a dictionary that contains the post code as a key and the suburb as a value? That's far quicker than reading the file every time.
Dictionary<string, string> postCodeMap = new Dictionary<string, string>();
string[] lines = File.ReadAllLines(...);
foreach (string line in lines)
{
string[] parts = line.Split(',');
postCodeMap[parts[0]] = parts[1];
}
And later do:
foreach (XmlNode node in postCodeNodes)
{
string suburb = postCodeMap[node.InnerText];
XmlElement elem = xDoc.CreateElement("suburb");
elem.InnerText = suburb;
node.ParentNode.AppendChild(elem);
}

Reading the XML values using LINQ

what is the best way of reading xml file using linq and the below code you will see that, I have three different loops and I feel like its not elegant or do I have options to retrofit the below code?
public static void readXMLOutput(Stream stream)
{
XDocument xml = new XDocument();
xml = LoadFromStream(stream);
var header = from p in xml.Elements("App").Elements("Application")
select p;
foreach (var record in header)
{
string noym = record.Element("nomy").Value;
string Description = record.Element("Description").Value;
string Name = record.Element("Name").Value;
string Code = record.Element("Code").Value;
}
var appRoles = from q in xml.Elements("App").Elements("Application").Elements("AppRoles").Elements("Role")
select q;
foreach (var record1 in appRoles)
{
string Name = record1.Element("Name").Value;
string modifiedName = record1.Element("ModifiedName").Value;
}
var memeber = from r in xml.Elements("App").Elements("Application").Elements("AppRoles").Elements("Role").Elements("Members")
select r;
foreach (var record2 in memeber)
{
string ExpirationDate = record2.Element("ExpirationDate").Value;
string FullName = record2.Element("FullName").Value;
}
}
UPDATED:
foreach (var record in headers)
{
..............
string Name1 = record.Attribute("Name").Value;
string UnmodifiedName = record.Attribute("UnmodifiedName").Value;
string ExpirationDate = record.Attribute("ExpirationDate").Value;
string FullName = record.Attribute("FullName").Value;
...............
}

Is that your actual code ? All those string variables you are assigning in the foreach loops only have a scope of one iteration of the loop. They are created and destroyed each time.

This may not work precisely in your case depending on the xml structure. Play around with it. Try it using LinqPad
var applications = from p in xml.Descendants("Application")
select new { Nomy = p.Element("nomy").Value
, Description = p.Element("Description").Value
, Name = p.Element("Name").Value
, Code = p.Element("Code").Value
};
var appRoles = from r in xml.Descendants("Role")
select new { Name = r.Element("Name").Value
, ModifiedName = r.Element("ModifiedName").Value
};

This answer is a hierarchical query.
var headers =
from header in xml.Elements("App").Elements("Application")
select new XElement("Header",
new XAttribute("noym", header.Element("nomy").Value),
new XAttribute("Description", header.Element("Description").Value),
new XAttribute("Name", header.Element("Name").Value),
new XAttribute("Code", header.Element("Code").Value),
from role in header.Elements("AppRoles").Elements("Role")
select new XElement("Role",
new XAttribute("Name", role.Element("Name").Value),
new XAttribute("ModifiedName", role.Element("ModifiedName").Value),
from member in role.Elements("Members")
select new XElement("Member",
new XAttribute("ExpirationDate", member.Element("ExpirationDate").Value),
new XAttribute("FullName", member.Element("FullName").Value)
)
)
);