Develop Reference

Getting attributes from xml using Linq

I have an xml document that I want to obtain attributes from
Here is the XML:
<Translations>
<Product Name="Room" ID="16">
<Terms>
<Term Generic="Brand" Product="Sub Category" />
<Term Generic="Range" Product="Brand" />
</Terms>
</Product>
<Product Name="House"" ID="29">
<Terms>
<Term Generic="Category" Product="Product Brand" />
<Term Generic="Brand" Product="Category Description" />
<Term Generic="Range" Product="Group Description" />
<Term Generic="Product" Product="Product Description" />
</Terms>
</Product>
</Translations>
Here is my current Linq query
public static string clsTranslationTesting(string GenericTerm, int ProductID)
{
const string xmlFilePath = "C:\\Dev\\XMLTrial\\XMLFile1.xml";
var xmlDocument = XDocument.Load(xmlFilePath);
var genericValue =
from gen in xmlDocument.Descendants("Product")
where gen.Attribute("ID").Value == ProductID.ToString()
select gen.Value.ToString();
}
The error that I am having is when I pass data into the method, the method loads the xml from the file to the xmlDocument variable successfully. However when it executes the query it returns a value null. I want to obtain the ID value.

I'm a little lost with your question, but here's my attempt.
First thing is you need to change "Customer" to "Product". Your XML contains not a single instance of the word "Customer" so I think you have a typo there.
I don't know exactly what you want returned from the query (I assume just the entire matched node?). Try this:
var genericValue = xmlDocument.Descendants("Product")
.FirstOrDefault(x => x.Attribute("ID").Value == "16");
I made a fiddle here that shows it in action

How to extract specific nodes from an xml file with their parents?

I have an xml file from which I want to extract nodes whose id attribute is "Needed":
<root>
<level1 id="NotNeeded">
</level1>
<level1 id="Needed">
<level2 id="Needed">
<level3 id="Needed">I need this one</level3>
<level3 id="NotNeeded1">I don't need this one</level3>
</level2>
<level2 id="notNeeded">
<level3 id="notNeeded">I don't need this one</level3>
</level2>
</level1>
</root>
(Depth is arbitrary)
I need to transform it into the following form:
<root>
<level1 id="Needed">
<level2 id="Needed">
<level3 id="Needed">I need this one</level3>
</level2>
</level1>
</root>
What I'm trying to do (with pseudocode, I hope it's clear):
myextraction=[element with id "Needed"]
while [myextraction has parent]
{
myextraction=myextraction.[parent without children].Addtochildren(myextraction)
}
Is there an easier way to do this? (A built-in method maybe?)

You could use Linq to Xml and do this.
XDocument doc = XDocument.Load(filepath);
doc.Descendants()
.Where(x=>x.Attribute("id") != null && x.Attribute("id").Value == "NotNeeded")
.Remove();
Ouput :
<root>
<level1 id="Needed">
<level2 id="Needed">
<level3 id="Needed">I need this one</level3>
</level2>
</level1>
</root>
Check this fiddle

xml parsing and convert values to string C#

I have an XML format like this
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<abresponse IssuerId="5" ReturnCode="Success" Version="12.2">
<XMLAuthenticateResponse>
<ACL>
<ACL Name="PM.ADMIN" Value="1" />
<ACL Name="PM.APPROVE" Value="1" />
<ACL Name="PM.LOGIN" Value="1" />
<ACL Name="PM.SUPPORT" Value="1" />
</ACL>
<User EMailAddress="abc#xyz.com" GroupName="Program Administrator" UserId="2095965" Username="test" />
</XMLAuthenticateResponse>
</abresponse >
How can i take the ReturnCode from the XML..
I am getting this as a API Response, so i have converted that
XElement response = XElement.Parse(xDoc.OuterXml)
string retcode=response.Descendants("OrbiscomResponse")
.Attributes("ReturnCode")
.FirstOrDefault()
.Value
.Tostring();

Just remove the Descendants call and it should work fine:
string retcode = response
.Attributes("ReturnCode")
.FirstOrDefault()
.Value
.ToString();

Replacing Some Elements in XML [Sample XML Provided]

I have an xml document that looks like this.I have a XML file structured as below.
Sample XML is as follows:
<Dr.Watson>
<Bugs>
<Bug Name="Bug.add --> AAAAAAAAAAAA">
<criteria>
<includeFilterSets>
<filterSet>
<filter>
<filterName>PRODUCT_NAME</filterName>
<operator>
<name>Equals</name>
</operator>
<value>Dr.Watson</value>
</filter>
</filterSet>
</includeFilterSets>
<grouping>
<groupBy>
<name>STATUS</name>
</groupBy>
</grouping>
<caseSensitive>false</caseSensitive>
<entityToSearch>
<name>BUG</name>
</entityToSearch>
</criteria>
</Bug>
</Bugs>
</Dr.Watson>
I want to replace some of elements in the XML file like below:
<Dr.Watson>
<Bugs>
<Bug Name="Bug.add --> AAAAAAAAAAAA">
<criteria>
<includeFilterSets>
<filterSet>
<filter>
<filterName>PRODUCT_NAME</filterName>
<operator>
<name>Equals</name>
</operator>
<value>Dr.Watson</value>
</filter>
</filterSet>
</includeFilterSets>
<grouping>
<groupBy>
<name>STATE</name>
</groupBy>
</grouping>
<caseSensitive>false</caseSensitive>
<entityToSearch>
<name>BUG</name>
</entityToSearch>
</criteria>
</Bug>
</Bugs>
</Dr.Watson>
i would like to change the available under followed by as State.
Please suggest.

var xdoc = XDocument.Load(path_to_xml);
var groupByName = xdoc.XPathSelectElement("//groupBy/name");
groupByName.Value = "STATE";
xdoc.Save(path_to_xml);

Extract a node from xml response

Below is my response generated from a webservice.
I want to do such that I want only PresentationElements node from this response.
Any help how can I achieve this query?
<?xml version="1.0"?>
<GetContentResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<ExtensionData />
<GetContentResult>
<ExtensionData />
<Code>0</Code>
<Value>Success</Value>
</GetContentResult>
<PresentationElements>
<PresentationElement>
<ExtensionData />
<ContentReference>Product View Pack</ContentReference>
<ID>SHOPPING_ELEMENT:10400044</ID>
<Name>View Pack PE</Name>
<PresentationContents>
<PresentationContent>
<ExtensionData />
<Content>View Pack</Content>
<ContentType>TEXT</ContentType>
<Language>ENGLISH</Language>
<Medium>COMPUTER_BROWSER</Medium>
<Name>Name</Name>
</PresentationContent>
<PresentationContent>
<ExtensionData />
<Content>Have more control of your home's security and lighting with View Pack from XFINITY Home.</Content>
<ContentType>TEXT</ContentType>
<Language>ENGLISH</Language>
<Medium>COMPUTER_BROWSER</Medium>
<Name>Description</Name>
</PresentationContent>
<PresentationContent>
<ExtensionData />
<Content>/images/shopping/devices/xh/view-pack-2.jpg</Content>
<ContentType>TEXT</ContentType>
<Language>ENGLISH</Language>
<Medium>COMPUTER_BROWSER</Medium>
<Name>Image</Name>
</PresentationContent>
<PresentationContent>
<ExtensionData />
<Content>The View Pack includes:
2 Lighting / Appliance Controllers
2 Indoor / Outdoor Cameras</Content>
<ContentType>TEXT</ContentType>
<Language>ENGLISH</Language>
<Medium>COMPUTER_BROWSER</Medium>
<Name>Feature1</Name>
</PresentationContent>
</PresentationContents>
</PresentationElement>
</PresentationElements>
</GetContentResponse>

You can use XPath extensions
var xdoc = XDocument.Parse(response);
XElement presentations = xdoc.XPathSelectElement("//PresentationElements");

You may use the System.Xml.Linq.XDocument:
//Initialize the XDocument
XDocument doc = XDocument.Parse(yourString);
//your query
var desiredNodes = doc.Descendants("PresentationElements");

Pretty easy, have you tried:
XDocument xml = XDocument.Load("... xml");
var nodes = (from n in xml.Descendants("PresentationElements")
select n).ToList();
You could also project each individual node to an anonymous type using something like:
select new
{
ContentReference = (string)n.Element("ContentReference").Value,
.... etc
}