I want to read all the nodes in the xml. Reading the top node without the loop goes fine, but I want to read all the nodes to get all the different temperatures for each city. This is the xml:
<servers>
<server name ="Stockholm">
<!-- data from Google weather -->
<name>Stockholm (Google)</name><!--Läser denna rad för tillfället-->
<url>http://www.yr.no/place/sweden/stockholm/stockholm/forecast.xml</url>
<xpath>/weatherdata/forecast/tabular/time/temperature</xpath>
</server>
<server name ="Göteborg">
<name>Göteborg (Google)</name> <url>http://www.yr.no/place/Sweden/V%C3%A4stra_G%C3%B6taland/Gothenburg/forecast.xml</url>
<xpath>/weatherdata/forecast/tabular/time/temperature</xpath>
</server>
<server name =" Malmö">
<name>Malmö (Google)</name>
<url>http://www.yr.no/place/sweden/scania/malmö/forecast.xml</url>
<xpath>/weatherdata/forecast/tabular/time/temperature</xpath>
</server>
</servers>
My code so far:
XmlDocument serverDoc = new XmlDocument();
serverDoc.Load("ServerUrls.xml");
XmlNodeList xml =
serverDoc.SelectNodes("servers/server");
foreach (var node in xml)
{
}
I know its not much. But cant seem to find information I can use properly. Been to MSDN and tried to figure it out from there, but to no result.
Thankful for all the help I can get.
As mentioned in the comment, you need to get URL of the XML where the actual temperature resides, as well as the corresponding XPath to locate the temperatures within the XML. Load XML from the URL into XmlDocument and then execute the XPath to extract the actual temperature values :
foreach (XmlNode node in xml)
{
// get information needed to extract temprature i.e XML location, and the XPath :
var loc = node.SelectSingleNode("url").InnerText;
var xpath = node.SelectSingleNode("xpath").InnerText;
// get temperature information
var doc = new XmlDocument();
doc.Load(loc);
var temperatures = doc.SelectNodes(xpath);
// iterate through temperatures and take action accordingly, f.e print the temperature
foreach(XmlNode temperature in temperatures)
{
Console.WriteLine(temperature.Attributes["value"].Value);
}
}
Related
I have an xml
<PolicyHdr>
<PolicyHdrData>
<ID>123</ID>
</PolicyHdrData>
</PolicyHdr>
<Role>
<RoleData>
<DisplayFieldName>Payor</DisplayFieldName>
</RoleData>
</Role>
<PolicyCovHdr>
<PolicyCovHdrData>
<ID>000</ID>
<PolicyHdrID>123</PolicyHdrID>
</PolicyCovHdrData>
</PolicyCovHdr>
<Role>
<RoleData>
<DisplayFieldName>Insured</DisplayFieldName>
</RoleData>
</Role>
I need to modify this xml such that the PolicyCovHdr comes as child node of PolicyHDr where the ID node under PolicyHdr is equal to the PolicyHdrID under POlicyCovHDr.
Also the Role Nodes , whenever the DisplayFieldName is Payor it should be child of PolicyHdr and of the DisplayFieldName is Insure it should be the child node of PolicyCovHdr
So the final xml should look something like this:-
<PolicyHdr>
<PolicyHdrData>
<ID>123</ID>
<Role>
<RoleData>
<DisplayFieldName>Payor</DisplayFieldName>
</RoleData>
</Role>
</PolicyHdrData>
<PolicyCovHdr>
<PolicyCovHdrData>
<ID>000</ID>
<PolicyHdrID>123</PolicyHdrID>
<Role>
<RoleData>
<DisplayFieldName>Insured</DisplayFieldName>
</RoleData>
</Role>
</PolicyCovHdrData>
</PolicyCovHdr>
</PolicyHdr>
Could someone help me with some logic which I could use to achieve this xml
Hi sorry I forgot to add my code changes here
string xml1 = "<xml><PolicyHdr><PolicyHdrData><ID>123</ID></PolicyHdrData></PolicyHdr><Role><RoleData><DisplayFieldName>Payor</DisplayFieldName></RoleData></Role><PolicyCovHdr><PolicyCovHdrData><ID>000</ID><PolicyHdrID>123</PolicyHdrID></PolicyCovHdrData></PolicyCovHdr><Role><RoleData><DisplayFieldName>Insured</DisplayFieldName></RoleData></Role></xml>";
XmlDocument test = new XmlDocument();
test.LoadXml(xml1);
XmlNodeList polList = test.SelectNodes("//PolicyHdr/PolicyHdrData");
foreach (XmlNode xn in polList)
{
XmlNode polNode = xn.SelectSingleNode("//PolicyHdr/PolicyHdrData/ID");
XmlNodeList polCovNodeList = test.SelectNodes("//PolicyCovHdr/PolicyCovHdrData");
foreach (XmlNode yn in polCovNodeList)
{
XmlNode polCovPolNode = yn.SelectSingleNode("//PolicyCovHdr/PolicyCovHdrData/PolicyHdrID");
if(polNode.InnerText.ToString().Equals(polCovPolNode.InnerText.ToString()))
{
xn.AppendChild(yn);
}
}
XmlNodeList polRoleList = test.SelectNodes("//Role/RoleData");
foreach (XmlNode zn in polRoleList )
{
XmlNode RoleNode = zn.SelectSingleNode("//Role/RoleData/DisplayFieldName");
if(RoleNode.InnerText.ToString().Equals("Payor"))
{
xn.AppendChild(zn);
}
//Console.WriteLine(RoleNode.InnerText.ToString());
}
Console.WriteLine(xn.OuterXml.ToString());
}
The problem right now I am facing is the complexity is (n^2) and adding the Role node as child to PolicyCovHdr when DisplayFieldName = Insured.
Right now the output looks like this
<PolicyHdrData><ID>123</ID><PolicyCovHdrData><ID>000</ID><PolicyHdrID>123</PolicyHdrID></PolicyCovHdrData><RoleData><DisplayFieldName>Payor</DisplayFieldName></RoleData></PolicyHdrData>
I am still thinking of how to add the Role with DisplayFieldname as Insured as well because of the complexity is already very high
I think that you should use XML Serialization/Deserialization. You can look for example to this question: C# Xml Serialization & Deserialization
At first you can create an object with structure of your input XML, than use XML Deserializer to load the data from XML to this object. After that you can work with the instance of an object and ad some conditions to your code which you need.
You can create another objects which will be representing output XML (depends on the structure as you wrote about it) and in if/else code filling the object with the data you need. Structure of XML will be represented by the structure of the object. Finally you can use XML Serializer to create your XML.
There could probably be better solution, but that should also work.
I have looked everywhere, and cannot find anything to help me.
I am writing a program that connects to a webservice and then the webservice sends an XML response. After the response is received I have to retrieve certain values from it, but this is where it gets tricky
Here is a snippet of the returned XML:
<?xml version="1.0"?>
<MobilePortalSellingCategoriesHierarchy xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<Response xmlns="http://blabla.com/service/">Successful</Response>
<ResponseNumber xmlns="http://blabla.com/service/">0</ResponseNumber>
<SellingCategoriesHierarchy xmlns="http://tym2sell.com/PortalService/">
<Response>Successful</Response>
<ResponseNumber>0</ResponseNumber>
<SellingCategories>
<PortalSellingCategory>
<SellingCategoryId xsi:nil="true" />
<SellingCategoryName>category1</SellingCategoryName>
<DeliveryMethod />
<DeliveryMethodNumber>0</DeliveryMethodNumber>
<SellingCategories>
<PortalSellingCategory>
<SellingCategoryId xsi:nil="true" />
<SellingCategoryName>category1_Item</SellingCategoryName>
<DeliveryMethod />
<DeliveryMethodNumber>0</DeliveryMethodNumber>
<SellingCategories>
<PortalSellingCategory>
<SellingCategoryId>2</SellingCategoryId>
<SellingCategoryName>Item2</SellingCategoryName>
<DeliveryMethod>Display</DeliveryMethod>
<DeliveryMethodNumber>1</DeliveryMethodNumber>
<VoucherValue>0.00</VoucherValue>
<IsVariablePrice>true</IsVariablePrice>
<MinimumVoucherValue>1.00</MinimumVoucherValue>
<MaximumVoucherValue>1000.00</MaximumVoucherValue>
<VoucherValueIncrement>1.00</VoucherValueIncrement>
<AdditionalInputItems>
<PortalAdditionalInputItem>
<InputItemId>-1</InputItemId>
<Label>Value:</Label>
<IsNumericOnly>true</IsNumericOnly>
<MaximumLength>7</MaximumLength>
<Hidden>false</Hidden>
</PortalAdditionalInputItem>
<PortalAdditionalInputItem>
<InputItemId>4</InputItemId>
<Label>Mobile Number</Label>
<IsNumericOnly>true</IsNumericOnly>
<MaximumLength>15</MaximumLength>
<Hidden>false</Hidden>
</PortalAdditionalInputItem>
</AdditionalInputItems>
<TwoStep>false</TwoStep>
<SelectedIcon>SamplePicture</SelectedIcon>
<UnSelectedIcon>SamplePicture</UnSelectedIcon>
This repeats from the SellingCategories node just under Response for a couple of times.
Here is a Snippet of my code where I get the XML as string.
XmlDocument xml = new XmlDocument();
xml.LoadXml(receivedData);
XmlNodeList xnList = xml.SelectNodes("/MobilePortalSellingCategoriesHierarchy");
foreach (XmlNode xn in xnList)
{
string sellingCategoryName = xn["SellingCategoryName"].InnerText;
string SelectedIcon = xn["SelectedIcon"].InnerText;
string UnSelectedIcon = xn["UnSelectedIcon"].InnerText;
richTextBox1.AppendText(string.Format("Name: {0} {1} {2}", sellingCategoryName, SelectedIcon, UnSelectedIcon));
}
I have tried changing xml.SelectNodes("/MobilePortalSellingCategoriesHierarchy");
to
xml.SelectNodes("/MobilePortalSellingCategoriesHierarchy/SellingCategoriesHierarchy/SellingCategories/PortalSellingCategory");
I need to select each SellingCategoryName and list the SellingCategoryName(s) and all the other items underneath it.
I was hoping to get something in the lines of:
Category1
Category1_Item
Item2
SamplePicture
Sample Picture
Mine only reads the First Node and then returns "Successful" to me.
I havve also tried:
XElement root = XElement.Load("FilePath");
var sellingCategoryNames = from PortalSellingCategory in root.Elements("MobilePortalSellingCategoriesHierarchy")
where (string)PortalSellingCategory.Element("SellingCategoriesHierarchy").Element("SellingCategories").Element("PortalSellingCategory") != ""
select PortalSellingCategory;
foreach (var xEle in sellingCategoryNames)
{
richTextBox1.Text = (string)xEle;
}
Any help would be greatly appreciated.
What you are doing with
xml.SelectNodes("/MobilePortalSellingCategoriesHierarchy");
is selecting your root node, which is just one. Thats why you only get one item in your list back. Is the hierarchy important? I can see that PortalSellingCategory can also be inside another PortalSellingCategory. If not maybe you could try the following select:
xml.SelectNodes("//PortalSellingCategory");
This will search for every node named "PortalSellingCategory" in your response, no mather where in the hierarchy it is.
EDIT:
And yes, you should look out for the namespaces, sry for didnt seeing that.
If you like geeting all the nodes with XPath you must create a new NamespaceManager and at it to your selectNodes call:
XmlDocument xml = new XmlDocument();
xml.LoadXml(data);
XmlNamespaceManager ns = new XmlNamespaceManager(xml.NameTable);
ns.AddNamespace("ns", "http://tym2sell.com/PortalService/");
XmlNodeList xnList = xml.SelectNodes("//ns:PortalSellingCategory", ns);
I would use XElement instead of XMLDocument, and then use Linq to query or pick the elmements like: XElement xContact = ....
int contactno = (int?)xContact.Element("command").Element("contactperson").Attribute("contactpersonid") ?? -1;
if (xContact.Element("command").Element("contactperson").Element("name").Element("firstname") != null)
console.writeline(xContact.Element("command").Element("contactperson").Element("name").Element("firstname").Value);
var doc= new XmlDocument();
doc.Load("FilePath");
var nodeList = xml.GetElementsByTagName("PortalSellingCategory");
Hi,
It returns the collection of nodes, and you just have to query it to get needed informations.
Feel free to ask help if needed.
Dimitri.
So I'm working on a speech recognition program in C# and while trying to implement the YAHOO News API into the program I am getting no response.
I won't copy/paste my whole code as it would be very long so here are the main bits.
private void GetNews()
{
string query = String.Format("http://news.yahoo.com/rss/");
XmlDocument wData = new XmlDocument();
wData.Load(query);
XmlNamespaceManager manager = new XmlNamespaceManager(wData.NameTable);
manager.AddNamespace("media", "http://search.yahoo.com/mrss/");
XmlNode channel = wData.SelectSingleNode("rss").SelectSingleNode("channel");
XmlNodeList nodes = wData.SelectNodes("rss/channel/item/description", manager);
FirstStory = channel.SelectSingleNode("item").SelectSingleNode("title", manager).Attributes["alt"].Value;
}
I believe I have done something wrong here:
XmlNode channel = wData.SelectSingleNode("rss").SelectSingleNode("channel");
XmlNodeList nodes = wData.SelectNodes("rss/channel/item/description", manager);
FirstStory = channel.SelectSingleNode("item").SelectSingleNode("title", manager).Attributes["alt"].Value;
Here is the full XML Document: http://news.yahoo.com/rss/
If any more info is required let me know.
Hmm I have implemented my own code to get news from Yahoo, I read all the news Title ( which is located at rss/channel/item/title ) and Short story ( which is located rss/channel/item/description ).
The short story is the problem for news, and that is the point when we need to get all the inner text of description node in a string and then parse it like XML. The text code is in this format and the Short story is right behind </p>
<p><a><img /></a></p>"Short Story"<br clear="all"/>
We need to modify it since we have many xml roots (p and br) and we add an extra root <me>
string ShStory=null;
string Title = null;
//Creating a XML Document
XmlDocument doc = new XmlDocument();
//Loading rss on it
doc.Load("http://news.yahoo.com/rss/");
//Looping every item in the XML
foreach (XmlNode node in doc.SelectNodes("rss/channel/item"))
{
//Reading Title which is simple
Title = node.SelectSingleNode("title").InnerText;
//Putting all description text in string ndd
string ndd = node.SelectSingleNode("description").InnerText;
XmlDocument xm = new XmlDocument();
//Loading modified string as XML in xm with the root <me>
xm.LoadXml("<me>"+ndd+"</me>");
//Selecting node <p> which has the text
XmlNode nodds = xm.SelectSingleNode("/me/p");
//Putting inner text in the string ShStory
ShStory= nodds.InnerText;
//Showing the message box with the loaded data
MessageBox.Show(Title+ " "+ShStory);
}
Choose the me as the right answer or vote me up if the code works for you. If there are any issues you can ask me. Cheers
It's likely that you are passing that namespace manager to those attributes, but I'm not 100% certain. Those are definitely not in that .../mrss/ namespace, so I would guess that is your problem.
I would try it without passing the namespace (if possible) or using the GetElementsByTagName method to avoid namespace issues.
Tag contains the text rather than Xml.
Here is an example to display text news:
foreach (XmlElement node in nodes)
{
Console.WriteLine(Regex.Match(node.InnerXml,
"(?<=(/a>)).+(?=(</p))"));
Console.WriteLine();
}
<Report xmlns="Microsoft.SystemCenter.DataWarehouse.Report.Alert" xmlns:p1="w3.org/2001/XMLSchema-instance"; Name="Microsoft.SystemCenter.DataWarehouse.Report.Alert" p1:schemaLocation="Microsoft.SystemCenter.DataWarehou?Schema=True">
<Title>Alert Report</Title>
<Created>6/27/2013 9:32 PM</Created>
<StartDate>6/1/2013 9:29 PM</StartDate>
<EndDate>6/27/2013 9:29 PM</EndDate>
<TimeZone>(UTC)</TimeZone>
<Severity>Warning, Critical</Severity>
<Priority>Low, Medium, High</Priority>
<AlertTable>
<Alerts>
<Alert>
<AlertName></AlertName>
<Priority></Priority>
</Alert>
</Alerts>
</AlertTable>
</Report>
So I'm trying to pull down the list of nodes that appear under Alerts child. So /Report/AlertTable/Alerts.
I've done very similar before but in this format it is not working for some reason. Can someone point me out in the right direction?
XmlDocument Log = new XmlDocument();
Log.Load("test.xml");
XmlNodeList myLog = Log.DocumentElement.SelectNodes("//Report/AlertTable/Alerts");
foreach (XmlNode alert in myLog)
{
Console.Write("HERE");
Console.WriteLine(alert.SelectNodes("AlertName").ToString());
Console.WriteLine(alert.SelectNodes("Priority").ToString());
Console.Read();
}
EDIT:
One of the responses had me try to use a bunch of namespace with p1 but had no such luck.
EDIT:
Did not work either:
var name = new XmlNamespaceManager(log.NameTable);
name.AddNamespace("Report", "http://www.w3.org/2001/XMLSchema-instance");
XmlNodeList xml = log.SelectNodes("//Report:Alerts", name);
From a site:
nodename Selects all nodes with the name "nodename"
/ Selects from the root node
// Selects nodes in the document from the current node that match the selection no matter where they are
So I believe
"/AlertTable/Alerts"
would work, as that would be 'from the root node' as well as
"Report/AlertTable/Alerts"
XPath Site
Figured this sucker out.
It had to do with the namespace of "Microsoft.SystemCenter.DataWarehouse.Report.Alert". Changing this to anything but that won't read the XML properly.
XmlDocument log = new XmlDocument();
log.Load(#"C:\Users\barranca\Desktop\test.xml");
// XmlNodeList xml = log.SelectNodes("//ns1:Alerts");
var name = new XmlNamespaceManager(log.NameTable);
name.AddNamespace("ns1", "Microsoft.SystemCenter.DataWarehouse.Report.Alert");
XmlNodeList xml = log.SelectNodes("//ns1:Alert", name);
foreach (XmlNode alert in xml)
{
Console.Write("HERE");
XmlNode test = alert.SelectSingleNode("//ns1:AlertName",name);
string testing = test.InnerText;
Console.Write(testing);
}
Good Evening All, and happy weekend!.
I have been trying all day to understand how to parse my simple XML file so I can understand it enough to write a personal project I want to work on.
I have been reading articles on this site and others but cannot get past where I am :(
My XML Document is ...
<XML>
<User>
<ID>123456789</ID>
<Device>My PC</Device>
</User>
<History>
<CreationTime>27 June 2013</CreationTime>
<UpdatedTime>29 June 2013</UpdatedTime>
<LastUsage>30 June 2013</LastUsage>
<UsageCount>103</UsageCount>
</History>
<Configuration>
<Name>Test Item</Name>
<Details>READ ME</Details>
<Enabled>true</Enabled>
</Configuration>
</XML>
I am trying to get the value in the details element (READ ME). Below is my code
// Start Logging Progress
Console.WriteLine("Test Application - XML Parsing and Creating");
Console.ReadKey();
// Load XML Document
XmlDocument MyDoc = new XmlDocument(); MyDoc.Load(#"E:\MyXML.XML");
// Select Node
XmlNode MyNode = MyDoc.SelectSingleNode("XML/Configuration/Details");
// Output Node Value
Console.WriteLine(String.Concat("Details: ", MyNode.Value));
// Pause
Console.ReadKey();
My console application is running and outputing "Target: " but not giving me the detail within the element.
Can somebody see why this is happening, and perhaps give me advice if I am completely off the wheel? I have no previous knowledge in reading XML files; hence where I am now :)
Thanks! Tom
With the your XPATH expression
// Select Node
XmlNode MyNode = MyDoc.SelectSingleNode("XML/Configuration/Details");
your are selection an element so the type of the MyNode will be XmlElement but the Value of an XmlElement is always null (see on MSDN) so you need to use XmlElement.InnerText or XmlElement.InnerXml isntead.
So the changed your code to
// Output Node Value
Console.WriteLine(String.Concat("Details: ", MyNode.InnerText));
Or you can select the content of an element with using the XPATH text() function, in this case MyNode will be XmlText where you get its value with Value:
// Select Node
XmlNode MyNode = MyDoc.SelectSingleNode("XML/Configuration/Details/text()");
// Output Node Value
Console.WriteLine(String.Concat("Details: ", MyNode.Value));
As a sidenote if you are anyway learning XML manipulation in C# you should check out LINQ to XML which is another/newer way to working with XML in C#.
Just for interest, a little-known "simple" syntax is this:
XmlDocument myDoc = new XmlDocument();
myDoc.Load(#"D:\MyXML.XML");
string details = myDoc["XML"]["Configuration"]["Details"].InnerText;
Note that this (and the XPath approach) could go pop if your XML doesn't conform to the structure you're expecting, so you'd ideally put some validation in there as well.
U can use Xpath library for that (u must include "System.Xml.XPath"):
XmlDocument document = new XmlDocument();
document.Load("MyXml.xml");
XPathNavigator navigator = document.CreateNavigator();
foreach (XPathNavigator nav in navigator.Select("//Details"))
{
Console.WriteLine(nav.Value);
}
the above code iterate over every node called (Details) extracting information and print it.
If you want to retrieve a particular value from an XML file
XmlDocument _LocalInfo_Xml = new XmlDocument();
_LocalInfo_Xml.Load(fileName);
XmlElement _XmlElement;
_XmlElement = _LocalInfo_Xml.GetElementsByTagName("UserId")[0] as XmlElement;
string Value = _XmlElement.InnerText;
Value contains the text value