Develop Reference

Get XML attribute Values by its Descendants

I have an XML in this Format and I want to get List of Line ID and its Name
<ArrayOfLines xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<LineStatus ID="0" StatusDetails="">
<BranchDisruptions />
<Line ID="1" Name="Line1" />
<Status ID="GS" CssClass="GoodService" Description="Good Service" IsActive="true">
<StatusType ID="1" Description="Line" />
</Status>
</LineStatus>
<LineStatus ID="1" StatusDetails="">
<BranchDisruptions />
<Line ID="2" Name="Line2" />
<Status ID="GS" CssClass="GoodService" Description="Good Service" IsActive="true">
<StatusType ID="1" Description="Line" />
</Status>
</LineStatus>
</ArrayOfLines>
and This is the code I have written:
String xmlFilePath = #"C:/myXML.xml";
XDocument xmlFile = XDocument.Load(xmlFilePath);
var query = from c in xmlFile.Descendants("LineStatus") select c;
but it is not returning me any results.

Here is my idea but you have to create list "namesList" and "idList" before. Try this:
XDocument xDoc = XDocument.Load("your xml file");
foreach (var elem in xDoc.Document.Descendants("line"))
{
idList.Add(elem.Attribute("ID").Value);
namesList.Add(elem.Attribute("Name").Value);
}
And you have full controll by index of each list to this data. After that you can also create object of these 2 elements

You have an xml namespace, you need to specify it with element names:
XNamespace ns = "http://www.w3.org/2001/XMLSchema-instance";
var query = from c in xmlFile.Descendants(ns + "LineStatus") select c;

Try this...
String xmlFilePath = #"C:/myXML.xml";
XDocument xmlFile = XDocument.Load(xmlFilePath);
var query = (from c in xmlFile.Descendants("Line")
select new {
ID=c.Attribute("ID").Value,
Name=c.Attribute("Name").Value
}).ToList();;

Access all nodes in xml using linq

I have xml:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<UpdateMemberHireStatus xmlns="http://tempuri.org/">
<member>
<HireAvailability>
<code>1</code>
<name>פנוי</name>
</HireAvailability>
<HireRejectReason>
<code>2</code>
<name>wow</name>
</HireRejectReason>
<IdNumber>43504349</IdNumber>
<note> </note>
</member>
</UpdateMemberHireStatus>
and I want to use LINQ to access all the nodes in the xml.
Here's what I have tried:
XNamespace ns = "tempuri.org/";
IEnumerable<HireStatus> status = from r in doc.Descendants(ns + "UpdateMemberHireStatus")
.Descendants(ns + "member")
select new HireStatus() { };
return status.ToList();

Use Descendants
var xml = XDocument.Load(XMLStream);
var allEle = xml.Descendants("UpdateMemberHireStatus"); //you can do linq now.

You can use XDocument also in the following way:
string xmlPath = "D://member.xml";
XmlDocument doc = new XmlDocument();
xdoc = XDocument.Load(xmlPath);
doc.LoadXml(xdoc.ToString());
var memberStatus= (from mem in xdoc.Descendants("member")
select mem);
foreach (XElement element in memberStatuses.ToList())
IEnumerable<XNode> nodes = element.Nodes();

var x = XElement.Load(XMLStream);
var all = x.DescendantNodes();

How do I read all XML nodes of a specific name and put them into an array (or list)?

I have an XML:
<?xml version="1.0" encoding="UTF-8"?>
<ticket>
<comments type="array">
<comment>
<attachments type="array">
<attachment>
<url>I NEED WHATEVER IS IN HERE</url>
</attachment>
</attachments>
</comment>
<comment>
<attachments type="array">
<attachment>
<url>I NEED WHATEVER IS IN HERE</url>
</attachment>
</attachments>
<comment>
</comments>
</ticket>
How would I go about getting whatever is inside the URL tag and add it to a <List>? I'm using C#.

Use:
var result = XDocument.Parse(inputXml)
.DescendantNodes().OfType<XText>().Select(e => e.Value).ToList();
Or using XPath:
var result = ((IEnumerable)XDocument.Parse(input).XPathEvaluate("//text()"))
.Cast<XText>().ToList();
To retrieve text only from url element use:
var result = XDocument.Parse(inputXml)
.Descendants("url").Select(e => e.Value).ToList();
or change above XPath: //url/text()

using (StringReader sr = new StringReader(xml_content))
{
XDocument xdoc = XDocument.Load(sr);
IList<string> values = xdoc.XPathSelectElements("ticket/comments/attachments/url").Select(e => e.Value).ToList();
}
Or, based on your use case in your comment:
var doc = new XmlDocument();
doc.LoadXml(xml_content);
IList<string> values = doc.SelectNodes("ticket/comments/attachments/url")
.Cast<XmlElement>().Select(e => e.InnerText).ToList();

Or you can use var values = xdoc.SelectSingleNode("ticket/comments/attachments/url").InnerXml;

Insert the data of richtextbox into existing xml in c# linq

I have a xml like this:
<?xml version="1.0" encoding="utf-8"?>
<assessment xmlns="http://xml.thinkcentral.com/pub/xml/hsp/assessment" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:tia="http://xml.thinkcentral.com/pub/xml/hsp/tia" xmlns:tibase="http://xml.thinkcentral.com/pub/xml/hsp/tibase" xsi:schemaLocation="http://xml.thinkcentral.com/pub/xml/hsp/assessment http://xml.thinkcentral.com/pub/xml1_2_6/hsp_assessment.xsd" isbn="9780547660455" buid="NA12_AG_G01CH01A" title="Chapter 1 Test Form A" num_questions="24" num_sections="1" type="Basal" intervenable="true" duration="P5Y" pausable="false" scramble="false">
<test_section id="1" name="Chapter 1 Test Form A" index="1">
<aaa testitem_id="NA12_AG_G01CH01A_01" template="hsp_testitem_mc1.xslt" id="1" bankable="true">
<tia:multipleChoiceTestItem total-points="1" questionType="Multiple Choice" sample="false" version_label="1.0">
<tia:directions>
<tia:tiDirectionLine>
<tia:textBody></tia:textBody>
</tia:tiDirectionLine>
<tia:address>Richtextbox Data</tia:address>
</tia:directions>
</tia:multipleChoiceTestItem>
</aaa>
<aaa testitem_id="NA12_AG_G01CH01A_02" template="hsp_testitem_mc1.xslt" id="2" bankable="true">
<tia:multipleChoiceTestItem total-points="1" questionType="Multiple Choice" sample="false" version_label="1.0">
<tia:directions>
<tia:tiDirectionLine>
<tia:textBody></tia:textBody>
</tia:tiDirectionLine>
<tia:address>Richtextbox Data</tia:address>
</tia:directions>
</tia:multipleChoiceTestItem>
</aaa>
</test_section>
</assessment>
I have to insert the the data according to the id of the aaa element.
<aaa testitem_id="NA12_AG_G01CH01A_01" template="hsp_testitem_mc1.xslt" id="1" bankable="true">
<aaa testitem_id="NA12_AG_G01CH01A_02" template="hsp_testitem_mc1.xslt" id="2"bankable="true">
if id="1" then data of ritchtextbox will be insert into tia:address node.
i am using the following code.
private void button2_Click(object sender, EventArgs e)
{
XDocument doc = XDocument.Load(#"d:\file.xml");
XNamespace ns = XNamespace.Get("http://tia.com");
var result= (from ele in doc.Descendants("aaa")
where ((string)ele.Attribute("id")) == "1"
select ele.Element(ns+"address")).FirstOrDefault();
if (result != null)
{
result.Value = richTextBox1.Text;
doc.Save(#"d:\file.xml");
}
MessageBox.Show("done");
}
its not working. how i do that?

First of al, the XML markup you have posted is not valid. I think the easiest way to read/write an XML document is Linq-XML. You have to import System.Xml.Linq namespace to use XDocument class and its method. Take a look at MSDN article.
XDocument doc = XDocument.Load(#"c:\file.xml");
var result = (from ele in doc.Descendants("aaa")
where ((string)ele.Attribute("id")) == "1"
select ele.Element("address")).FirstOrDefault();
if (result != null)
{
result.Value = richTextBox1.Text;
doc.Save(#"c:\file.xml");
}
XML document should be:
<?xml version="1.0" encoding="utf-8"?>
<root>
<aaa id="1">
<address>Hello World</address>
</aaa>
<aaa id="2">
<address>
write text of ritchtextbox here</address>
</aaa>
</root>
EDIT:
In OP, XML markup has some issues and I've fixes the markup (added namespace).
<?xml version="1.0" encoding="utf-8"?>
<aaa testitem_id="chapter1" template="hsp_testitem_mc1.xslt" id="1" bankable="true" xmlns:tia="http://tia.com">
<tia:multipleChoiceTestItem total-points="1" questionType="Multiple Choice" sample="false" version_label="1.0">
<tia:directions>
<tia:tiDirectionLine>
<tia:textBody />
</tia:tiDirectionLine>
<tia:address>I have to edited here.(Richtextbox data)</tia:address>
</tia:directions>
</tia:multipleChoiceTestItem>
</aaa>
Code to find <tia:address> and replace its value.
XDocument doc = XDocument.Load(file);
XNamespace ns = XNamespace.Get("http://tia.com");
var result = (from ele in doc.Descendants(ns + "address")
select ele).SingleOrDefault();
if (result != null)
{
result.Value = richTextBox1.Text;
doc.Save(file);
}
EDIT : After changes made by OP in opening post.
XDocument doc = XDocument.Load(file);
//Change the namespace
XNamespace ns = XNamespace.Get("http://xml.thinkcentral.com/pub/xml/hsp/tia");
var result = (
from ele in doc.Descendants(ns + "multipleChoiceTestItem")
where ele.Parent.Attribute("id").Value == "1"
select
ele.Descendants(ns+"address").FirstOrDefault()
).FirstOrDefault();
if (result != null)
{
result.Value = "World";
doc.Save(file);
}

c# XML from descendants

I am coding for WP7. I am expecting this code below to read the XML below:
_xml = XElement.Parse(e.Result);
results.Items.Clear();
foreach (XElement value in _xml
.Descendants("ResourceSets").Descendants("ResourceSet")
.Descendants("Resources").Descendants("Location"))
{
Results _item = new Results();
_item.Place = value.Element("Name").Value;
_item.Lat = value.Element("Point").Element("Latitude").Value;
_item.Long = value.Element("Point").Element("Longitude").Value;
results.Items.Add(_item);
}
But the foreach loop wont read it and place it in the _items.
<?xml version="1.0" encoding="utf-8" ?>
<Response xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.microsoft.com/search/local/ws/rest/v1">
<Copyright>Copyright © 2011 Microsoft and its suppliers. All rights reserved. This API cannot be accessed and the content and any results may not be used, reproduced or transmitted in any manner without express written permission from Microsoft Corporation.</Copyright>
<BrandLogoUri>http://dev.virtualearth.net/Branding/logo_powered_by.png</BrandLogoUri>
<StatusCode>200</StatusCode>
<StatusDescription>OK</StatusDescription>
<AuthenticationResultCode>ValidCredentials</AuthenticationResultCode>
<TraceId>703e7f1427dd425185ded546ba8a0d2c|LTSM001154|02.00.126.3000|LTSMSNVM002008, LTSMSNVM001854, LTSMSNVM001853</TraceId>
<ResourceSets>
<ResourceSet>
<EstimatedTotal>4</EstimatedTotal>
<Resources>
<Location>
<Name>Ashford, Kent, United Kingdom</Name>
<Point>
<Latitude>51.146636679768562</Latitude>
<Longitude>0.87603025138378143</Longitude>
</Point>
<BoundingBox>
<SouthLatitude>51.076602190732956</SouthLatitude>
<WestLongitude>0.72853825986385345</WestLongitude>
<NorthLatitude>51.21656522154808</NorthLatitude>
<EastLongitude>1.0235222429037094</EastLongitude>
</BoundingBox>
<EntityType>PopulatedPlace</EntityType>
<Address>
<AdminDistrict>England</AdminDistrict>
<AdminDistrict2>Kent</AdminDistrict2>
<CountryRegion>United Kingdom</CountryRegion>
<FormattedAddress>Ashford, Kent, United Kingdom</FormattedAddress>
<Locality>Ashford</Locality>
</Address>
<Confidence>High</Confidence>
</Location>
</Resources>
</ResourceSet>
</ResourceSets>
</Response>

It looks like you're missing the namespace on each of your element names. Try this:
XNamespace xns = "http://schemas.microsoft.com/search/local/ws/rest/v1";
_xml = XElement.Parse(e.Result);
results.Items.Clear();
foreach (XElement value in _xml
.Descendants(xns + "ResourceSets").Descendants(xns + "ResourceSet")
.Descendants(xns + "Resources").Descendants(xns + "Location"))
{
Results _item = new Results();
_item.Place = value.Element(xns + "Name").Value;
_item.Lat = value.Element(xns + "Point").Element(xns + "Latitude").Value;
_item.Long = value.Element(xns + "Point").Element(xns + "Longitude").Value;
results.Items.Add(_item);
}

Is there a particular reason why you're using Descendants?
You could just do:
XmlDocument doc = new XmlDocument();
doc.Load(YourXMLPath);
XmlNode locationNode = doc["ResourceSets"]["ResourceSet"]["Resources"]["Location"];
foreach(XmlElement value in locationNode.Children)
{
Results _item = new Results();
_item.Place = value.Element("Name").Value;
_item.Lat = value.Element("Point").Element("Latitude").Value;
_item.Long = value.Element("Point").Element("Longitude").Value;
results.Items.Add(_item);
}
I don't have VS right now, but that should be close to it.
Of course a good behavior would be to check if nodes are null before getting the next one.

public ObservableCollection<Results> result = new ObservableCollection<Results>();
XDocument xmldoc = XDocument.Parse(e.Result.ToString());
var data = from c in xmldoc.Descendants("ResourceSets").Descendants("ResourceSet").Descendants("Resources").Descendants("Location")
select new Results{
Place = c.Element("Name").Value;
Lat = c.Element("Point").Element("Latitude").Value;
Long = c.Element("Point").Element("Longitude").Value;
};
foreach (Results obj in data)
{
result.Add(obj);
}
Have not tried, but this is how I do it.