Develop Reference

Remove children nodes in XML using Linq

I have an XML file with a list of parent nodes and childe nodes nested within the parent node, and I need to remove the child nodes when a specific criteria is been met.
Ex: Remove all contact nodes where the id = 1. How can I achieve this using linq and xml. This is my XML structure
<Events>
<Event>
<id>1</id>
<title>AA</title>
<start>2019-12-01T14:13:58.863</start>
<end>2019-12-01T15:13:58.787</end>
<contacts>
<contact>
<id>1</id>
<name>ABC</name>
</contact>
<contact>
<id>2</id>
<name>ABCD</name>
</contact>
<contact>
<id>3</id>
<name>ABCDE</name>
</contact>
</contacts>
</Event>
<Event>
<id>2</id>
<title>BB</title>
<start>2019-12-01T14:13:58.863</start>
<end>2019-12-01T15:13:58.787</end>
<contacts>
<contact>
<id>1</id>
<name>ABC</name>
</contact>
<contact>
<id>2</id>
<name>ABCD</name>
</contact>
<contact>
<id>3</id>
<name>ABCDE</name>
</contact>
</contacts>
</Event>
</Events>

You can get the XML nodes using this query
var query = xmlDoc.Descendants("contact").Where(e => e.Element("id").Value.Equals(id)).ToList();
And then run
query.Remove()
to remove the elements that were returned.

As Jon Skeet pointed out there is no need to do anything esoteric. Here is a complete example how to do it. Pure LINQ to XML.
c#, LINQ to XML
void Main()
{
const string inputXML = #"e:\Temp\MikeOconner.xml";
const string outputXML = #"e:\Temp\MikeOconner_output.xml";
XDocument xml = XDocument.Load(inputXML);
xml.Root.DescendantsAndSelf("contact")
.Where(r => (string)r.Element("id").Value == "1")
.Remove();
xml.Save(outputXML);
}

XDocument.XPathSelectElements doesn't work as expected

Sometimes C# driving me crazy, guys :) !
I tried a very simple code:
String pathToXMLFile = openFileDialog2.FileName;
var xdoc = XDocument.Load(pathToXMLFile);
var xElements = xdoc.XPathSelectElements("//NotificationData");
foreach (XElement xe in xElements)
{
Console.WriteLine(xe);
xe.RemoveAll();
}
xdoc.Save("c:/Temp/ReestrZalogovRuManyCollateralItemsSimple_output.xml");
and a very simple XML:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<PledgeNotificationToNotary xmlns="http://fciit.ru/eis2/ruzdi/types/2.2" version="2.2">
<NotificationId>7d8b62c2-7682-43f8-8a2c-ef4296296210</NotificationId>
<NotificationNotaryAddress/>
<NotificationData version="2.2">
<FormUZ1>
<PersonalProperties>
<PersonalProperty>
<OtherProperty>
<Description>Движимое имущество, согласно перечню по договору купли-продажи </Description>
</OtherProperty>
</PersonalProperty>
</PersonalProperties>
<Pledgors>
<Pledgor>
<Organization>
<RussianOrganization>
<NameFull>dgdgdfgdf</NameFull>
<OGRN>35345345</OGRN>
<INN>34534545</INN>
<Address>
<RegionCode>77</RegionCode>
<Region>Москва</Region>
<Street>Малая Семеновская</Street>
<House>fggdgdf</House>
<Building>dfgdfg</Building>
<Apartment>54654646dfg</Apartment>
</Address>
</RussianOrganization>
</Organization>
</Pledgor>
</Pledgors>
<Pledgee>
<Pledgee>
<Organization>
<RussianOrganization>
<NameFull>Тимер Банк (публичное акционерное общество)</NameFull>
<OGRN>1021600000146</OGRN>
<INN>1653016689</INN>
<Address>
<RegionCode>16</RegionCode>
<Region>Республика Татарстан (Татарстан)</Region>
<City>Казань</City>
<Street>проспект Ибрагимова</Street>
<House>58</House>
</Address>
<Email>dfgdgdgdg#timerbank.ru</Email>
</RussianOrganization>
</Organization>
</Pledgee>
</Pledgee>
<PledgeContract>
<Name>ДОГОВОР О ЗАЛОГЕ</Name>
<Date>2018-08-20</Date>
<Number>№ДОКЛЮ/7777/77-7</Number>
<TermOfContract>«01» июня 2028 года</TermOfContract>
</PledgeContract>
<NotificationApplicant>
<Role>2</Role>
<Organization>
<NameFull>Тимер Банк (публичное акционерное общество)</NameFull>
<URN>1021600000146</URN>
<UINN>1653016689</UINN>
<Email>fgdfggsdfgsdfg#timerbank.ru</Email>
</Organization>
<Attorney>
<Name>
<Last>dfgfg</Last>
<First>dfgsdfg</First>
<Middle>sdfgdfg</Middle>
</Name>
<BirthDate>1967-08-01</BirthDate>
<Authority>приказ dgdfgdfgfdg</Authority>
<PersonDocument>
<Code>33</Code>
<Name>Паспорт гражданина Российской Федерации</Name>
<SeriesNumber>2323 232323</SeriesNumber>
</PersonDocument>
<PersonAddress>
<AddressRF registration="true">
<RegionCode>16</RegionCode>
<Region>Республика Татарстан (Татарстан)</Region>
<City>Казань</City>
<Street>gfdgdfg</Street>
<House>343434</House>
</AddressRF>
</PersonAddress>
</Attorney>
</NotificationApplicant>
</FormUZ1>
</NotificationData>
</PledgeNotificationToNotary>
The problem is xdoc.XPathSelectElements in this code doesn't return any Elements.
I thought, may be I haven't yet woken up and tried to test my XML and XPath in the first site in Google for XPath online evulation - https://www.freeformatter.com/xpath-tester.html and my XPath //NotificationData works with this XML like a charm.
But why it doesn't work in C#? :)
Thank you in advance!

Having empty output for selected node in XML

I have an XML file which includes some nodes and its children sometimes with the same name and attributes.
<?xml version="1.0"?>
<PurchaseOrder PurchaseOrderNumber="99503" OrderDate="1999-10-20">
<Address Type="Shipping">
<Name>Ellen Adams</Name>
<Street>123 Maple Street</Street>
<City>Mill Valley</City>
<State>CA</State>
<Zip>10999</Zip>
<Country>USA</Country>
</Address>
<Address Type="Billing">
<Name>Tai Yee</Name>
<Street>8 Oak Avenue</Street>
<City>Old Town</City>
<State>PA</State>
<Zip>95819</Zip>
<Country>USA</Country>
<Address Type="Buying">
<Name>Ellen Adams</Name>
</Address>
<Address Type="transporting">
<Name>Tai Yee</Name>
<Street>8 Oak Avenue</Street>
</Address>
</Address>
<DeliveryNotes>Please leave packages in shed by driveway.</DeliveryNotes>
<Items>
<Item PartNumber="872-AA">
<ProductName>Lawnmower</ProductName>
<Quantity>1</Quantity>
<USPrice>148.95</USPrice>
<Comment>Confirm this is electric</Comment>
</Item>
<Item PartNumber="926-AA">
<ProductName>Baby Monitor</ProductName>
<Quantity>2</Quantity>
<USPrice>39.98</USPrice>
<ShipDate>1999-05-21</ShipDate>
</Item>
</Items>
</PurchaseOrder>
I want to have just only the Address nodes with its attributes as output. The problem is that there are some nested nodes which have the Address node as a child. Getting access to the child Address is my problem. If again it has child with the name Address then I do not want to give me this node as I have done in the following code
public void find_node(string ID_node)
{
XElement root = XElement.Load("PurchaseOrder.xml");
IEnumerable<XElement> address =
from el in root.Elements("Address")
where (string)el.Attribute("Type") == "Buying"
select el;
foreach (XElement el in address)
{
var newElement = new XElement(
el.Name.LocalName,
el.Attributes(),
el.Elements().Where(o => o.Name.LocalName != "Address")
);
Console.WriteLine(newElement.ToString());
}
}
The desired output for this code would be
<Address Type="Buying">
<Name>Ellen Adams</Name>
</Address>
but it has empty output when I am running the above function.
May I ask you have could I get ride of empty output for this function?

If you mean to look for Address elements regardless of its location within the XML, as long as it matches the attribute filter, you can use Descendants("Address") instead :
IEnumerable<XElement> address =
from el in root.Descendants("Address")
where (string)el.Attribute("Type") == "Buying"
select el;

IEnumerable<XElement> address =
from el1 in root.Elements("Address")
from el2 in el1.Elements("Address")
where (string)el2.Attribute("Type") == "Buying"
select el2;

Set Order Precedence Between XMLArray and XMLElement

I am trying to serialize an XML with C#, which has XMLElement and XMLArray.
When Serialized am getting XML as
<TestPlanResult xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" TestPlanRunStartedDateTime="02/10/2016 2:53 AM" TestPlanName="DataReconciliation" TestPlanRunTime="00:00:44.8979705"TestCaseCount="2" PassingTestCaseCount="2" FailingTestCaseCount="0" RemediationTestCount="0" Pass="true" ValidationPointCount="3">
<TestCaseResults Pass="true" Parameters="" RemediationToFollow="false" TestCaseName="0.1.5.2 InstallationMaintenance.GetInstallationFiles" RunTime="00:00:20.7972729" ValidationPointCount="2">
</TestCaseResults>
<TestCaseResults Pass="true" Parameters="" RemediationToFollow="false" TestCaseName="CheckForFullCompletion" RunTime="" ValidationPointCount="1">
</TestCaseResults>
<ProductVersions DbVersion="" AIEVersion="8001" ConsoleVersion="8001" MediatorVersion="9000" MonitorVersion="8001" DataIndexerVersion="1504" JobManagerVersion="" ARMVersion="8001"/>
</TestPlanResult>
In Result, I want to see ProductVersion Node before TestCaseResults Node,
So, XML looks like
<TestPlanResult xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" TestPlanRunStartedDateTime="02/10/2016 2:53 AM" TestPlanName="DataReconciliation" TestPlanRunTime="00:00:44.8979705"TestCaseCount="2" PassingTestCaseCount="2" FailingTestCaseCount="0" RemediationTestCount="0" Pass="true" ValidationPointCount="3">
<ProductVersions DbVersion="" AIEVersion="8001" ConsoleVersion="8001" MediatorVersion="9000" MonitorVersion="8001" DataIndexerVersion="1504" JobManagerVersion="" ARMVersion="8001"/>
<TestCaseResults Pass="true" Parameters="" RemediationToFollow="false" TestCaseName="0.1.5.2 InstallationMaintenance.GetInstallationFiles" RunTime="00:00:20.7972729" ValidationPointCount="2">
</TestCaseResults>
<TestCaseResults Pass="true" Parameters="" RemediationToFollow="false" TestCaseName="CheckForFullCompletion" RunTime="" ValidationPointCount="1">
</TestCaseResults>
</TestPlanResult>
I have already tried putting ProductVersions before TestCaseResults in C# property declrations and XML Element Order, but it is not working .
Thanks in Advance

linq to xml navigate through xml c#

I have some XML and need to be able to read the data within.
A sample of the XML is
<?xml version="1.0" ?>
<ConsumeLeadRequest xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<LeadType>Mortgage</LeadType>
<LeadXml>
<ns1:LeadAssigned xmlns:ns1="http://YaddaYadda" xmlns:ns0="http://YaddaYadda" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<ns0:Lead>
<Reference>1234</Reference>
<Product>
<Mnemonic>Mortgage</Mnemonic>
<Description>Mortgage Leads</Description>
<SubType>Other</SubType>
</Product>
<ExtendedInfo>
<Mortgage>
<MortgageValue>75000</MortgageValue>
<MortgageValueLowerBound>1</MortgageValueLowerBound>
<MortgageValueUpperBound>500</MortgageValueUpperBound>
<PropertyValue>100000</PropertyValue>
<PropertyValueLowerBound>1</PropertyValueLowerBound>
<PropertyValueUpperBound>500</PropertyValueUpperBound>
<Adverse>false</Adverse>
<FirstTime>false</FirstTime>
</Mortgage>
</ExtendedInfo>
<Applicants>
<Applicant1>
<Title>Mr</Title>
<Forename>SampleForename</Forename>
<Surname>SampleSurname</Surname>
<DateOfBirth>1903-02-01</DateOfBirth>
<Smoker>false</Smoker>
<TelephoneNumbers>
<TelephoneNumber>
<Number>01244123456</Number>
<Type>Mobile</Type>
</TelephoneNumber>
</TelephoneNumbers>
<EmailAddresses>
<EmailAddress>
<Email>test#moneysupermarket.com</Email>
<Type>Business</Type>
</EmailAddress>
</EmailAddresses>
<Addresses>
<Address>
<Street>Sample Street</Street>
<District>Sample District</District>
<Town>Sample Town</Town>
<County>Sample County</County>
<Postcode>CH53UZ</Postcode>
<Type>Home</Type>
</Address>
</Addresses>
</Applicant1>
</Applicants>
</ns0:Lead>
<Assignment>
<Price>20</Price>
<AssignmentDateTime>2010-02-01T00:00:00</AssignmentDateTime>
<Subscription>
<Reference>1234</Reference>
<Subscriber>
<Title>Mr</Title>
<Forename>SampleForename</Forename>
<Surname>SampleSurname</Surname>
</Subscriber>
</Subscription>
<Account>
<Reference>1234</Reference>
<CompanyName>Sample Company</CompanyName>
</Account>
<LeadType>SampleLeadType</LeadType>
<TerritoryName>UNITED KINGDOM</TerritoryName>
</Assignment>
</ns1:LeadAssigned>
</LeadXml>
<AuthenticationUsername>Username</AuthenticationUsername>
<AuthenticationPassword>Password</AuthenticationPassword>
</ConsumeLeadRequest>
Using Linq to XML how do i navigate to the items?
Thanks
Sp
I have tried a few things like
XDocument Leads = XDocument.Load(#"C:\Users\Steven.Pentleton\AppData\Local\Temporary Projects\PAALeadImport\PAAExmple.xml");
var Lead = (from L in Leads.Descendants("Lead")
select new { LeadType = (string)L.Element("Reference") }).ToList();
var S = Lead.First();
string T = S.LeadType;

Are you looking for XDcoument or XElement in linq
Namespace: using System.Xml.Linq;

I guess you are looking for a Linq To Xml guide