Develop Reference

Update a specific node in XML using XmlDocument

I am new to managing XML, I've read a couple of articles but I'm confused when it comes to a specific XML that I am working on. Can someone help me with the right statement? I just want to update the value of the ListStart, but I am getting an error when compiling. I am updating that part by this:
XmlDocument soapEnvelopeDocument = new XmlDocument();
soapEnvelopeDocument.Load(#"path");
XmlNode myNode = soapEnvelopeDocument.SelectSingleNode("descendant::cet:GetListCustomElement[cet:GetListCustom/cet:ListID='101']");
soapEnvelopeDocument.LastChild.InnerText = sDate;
<soapenv:Header/>
<soapenv:Body>
<cet:GetListCustomElement>
<!--Zero or more repetitions:-->
<cet:GetListCustom>
<cet:ListID>101</cet:ListID>
<cet:ListStart>13.11.2020</cet:ListStart>
</cet:GetListCustom>
</cet:GetListCustomElement>
</soapenv:Body>
</soapenv:Envelope>```

You only supplied a piece of the xml without the namespaces. With Xml linq you can get the element without the namespaces. See code below :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XElement ListStart = doc.Descendants().Where(x => x.Name.LocalName == "ListStart").FirstOrDefault();
ListStart.SetValue("14.11.2020");
}
}
}

How do I update an Old element with a new one in C#/XML

Basically what I want to do is: Download a new XML file and replace some elements with the old one, For example replace this code:
<Run x:Name="Degree" Text="15"/>
with current degree, which is
<temperature value="280.15" min="278.15" max="281.15" unit="kelvin"/>
but I don't know how to do that. Here's my code I'm stuck with:
using (WebClient web = new WebClient())
{
string url = string.Format("https://samples.openweathermap.org/data/2.5/weather?q=London&mode=xml&appid=b6907d289e10d714a6e88b30761fae22");
var xml = web.DownloadString(url);
}

Use xml linq :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string URL = "https://samples.openweathermap.org/data/2.5/weather?q=London&mode=xml&appid=b6907d289e10d714a6e88b30761fae22";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(URL);
XElement temperature = doc.Descendants("temperature").FirstOrDefault();
temperature.SetAttributeValue("value", 281);
string oldXml = "<Root xmlns:x=\"abc\"><Run x:Name=\"Degree\" Text=\"15\"/></Root>";
XDocument oldDoc = XDocument.Parse(oldXml);
XElement run = oldDoc.Descendants("Run").FirstOrDefault();
run.ReplaceWith(temperature);
}
}
}

Creating dynamic xml file

I want to create 1095 e-file xml using c# code. For that i want to create dynamic tags that means if data is available then only creating tags otherwise it can not show that tag.

Here is sample of using xml linq to create your xml file. You can add IF statements as necessary to skip adding any elements
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string header = "<?xml version=\"1.0\" encoding=\"utf-8\" ?><root xmlns:irs=\"myUrl\"></root>";
XDocument doc = XDocument.Parse(header);
XElement root = doc.Root;
XNamespace irs = root.GetNamespaceOfPrefix("irs");
XElement businessName = new XElement("BusinessNameLine1Txt", "Comp Name");
root.Add(businessName);
XElement tinRequest = new XElement(irs + "TINRequestTypeCd");
root.Add(tinRequest);
XElement employerEIN = new XElement(irs + "EmployerEIN", "899090900");
root.Add(employerEIN);
XElement contactNameGrp = new XElement("ContactNameGrp");
root.Add(contactNameGrp);
XElement firstName = new XElement("PersonFirstNm", "First Name Person");
contactNameGrp.Add(firstName);
XElement lastName = new XElement("PersonLastNm", "Last Name Person");
contactNameGrp.Add(lastName);
}
}
}
//sample output
//<?xml version="1.0" encoding="utf-8" ?>
//<root xmlns:irs="myUrl">
//<BusinessName>
// <BusinessNameLine1Txt>Comp Name</BusinessNameLine1Txt>
//</BusinessName>
//<irs:TINRequestTypeCd>BUSINESS_TIN</irs:TINRequestTypeCd>
//<irs:EmployerEIN>899090900</irs:EmployerEIN>
//<ContactNameGrp>
// <PersonFirstNm>First Name Person</PersonFirstNm>
// <PersonLastNm>Last Name Person</PersonLastNm>
//</ContactNameGrp> <ContactPhoneNum>9090909000</ContactPhoneNum>
//</root>

I need to read xml file data but due to attribute it does not work

i want to read xml file but due to Document node attribute it did not read file.
Code C#:
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(HttpContext.Server.MapPath("~/Content/Images/MMS-CREATE-ALLA-ALLAH2H1-23102018-000170-INP.xml"));
XmlNode settings = xmldoc.SelectSingleNode("Document[#xmlns='urn:iso:std:iso:20022:tech:xsd:pain.009.001.01']/MndtInitnReq/GrpHdr");
stu.BranchName = settings.SelectSingleNode("MsgId").InnerText;
XML FIle:
<?xml version="1.0" encoding="UTF-8"?>
<Document xmlns="urn:iso:std:iso:20022:tech:xsd:pain.009.001.01">
<MndtInitnReq>
<GrpHdr>
<MsgId>10005226074</MsgId>
<CreDtTm>2018-10-23T15:20:56</CreDtTm>
</GrpHdr>
</MndtInitnReq>
</Document>

You have a namespace that must be used to get the data. Try Xml Linq :
using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication75
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XNamespace ns = doc.Root.GetDefaultNamespace();
string msgId = (string)doc.Descendants(ns + "MsgId").FirstOrDefault();
XElement xCreDtTm = doc.Descendants(ns + "CreDtTm").FirstOrDefault();
//will give 1/1/01 when null
DateTime CreDtTm = xCreDtTm == null ? new DateTime() : (DateTime)xCreDtTm;
}
}
}

I don't think loading this xml should be a problem. I verified that by loading the xml you posted in an XmlDocument object.
However I think, your xpath to get "settings" node should have xml namespace in all tags after Document.
So the xpath should be "/[local-name()='Document' and namespace-uri()='urn:iso:std:iso:20022:tech:xsd:pain.009.001.01']/[local-name()='MndtInitnReq' and namespace-uri()='urn:iso:std:iso:20022:tech:xsd:pain.009.001.01']/*[local-name()='GrpHdr' and namespace-uri()='urn:iso:std:iso:20022:tech:xsd:pain.009.001.01']"

Reading the XMl Response and Extracting the nodes using c#

I am trying to extract the XML Response from an API. My XML response looks like below. I tried different methods. can you please help me in reading and extracting the individual nodes from the XMl response.
For Example: I want to extract node from below XML response.
<string xmlns="http://schemas.microsoft.com/2003/10/Serialization/">
<RichDBDS><TrxDetailCard><TRX_HD_Key>5437845</TRX_HD_Key> <Invoice_ID>189809</Invoice_ID><Date_DT>3/24/2016 1:34:44 PM</Date_DT><Merchant_Key>2202</Merchant_Key><Reseller_Key>2</Reseller_Key><TUser_Name_VC>ITSTEST.ISMI</TUser_Name_VC><Processor_ID>CC Processor</Processor_ID><TRX_Settle_Key></TRX_Settle_Key><Tip_Amt_MN></Tip_Amt_MN><Approval_Code_CH>24032016013444</Approval_Code_CH><Auth_Amt_MN>184.99</Auth_Amt_MN><IP_VC>66.55.53.68</IP_VC><Account_Type_CH>MANUAL</Account_Type_CH><Last_Update_DT></Last_Update_DT><Orig_TRX_HD_Key></Orig_TRX_HD_Key><Settle_Date_DT></Settle_Date_DT><Settle_Flag_CH>FALSE</Settle_Flag_CH><Trans_Type_ID>Sale</Trans_Type_ID><Void_Flag_CH>FALSE</Void_Flag_CH><CustomerID></CustomerID><AVS_Resp_CH>Y</AVS_Resp_CH><CV_Resp_CH>M</CV_Resp_CH><Host_Ref_Num_CH>0b144718-3597-4cfb-a2b5-058679510f29</Host_Ref_Num_CH><Zip_CH>30328</Zip_CH><Acct_Num_CH>1111</Acct_Num_CH><Total_Amt_MN>184.99</Total_Amt_MN><Exp_CH>0917</Exp_CH><Name_on_Card_VC>Kenneth Boler</Name_on_Card_VC><Type_CH>VISA</Type_CH><Cash_Back_Amt_MN></Cash_Back_Amt_MN><Result_CH>0</Result_CH><Result_Txt_VC>approval</Result_Txt_VC><Trans_Status>Settled</Trans_Status><PO_Num></PO_Num></TrxDetailCard></RichDBDS>

Try code like below using XML Linq. I used Load(FILENAME or URL) method, but you can also use Parse(STRING).
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
var results = doc.Descendants().Where(x => x.Name.LocalName == "TrxDetailCard").Select(y => new {
TRX_HD_Key = (int)y.Element(y.Name.Namespace + "TRX_HD_Key"),
Invoice_ID = (int)y.Element(y.Name.Namespace + "Invoice_ID"),
Date_DT = (DateTime)y.Element(y.Name.Namespace + "Date_DT"),
Merchant_Key = (int)y.Element(y.Name.Namespace + "Merchant_Key")
}).ToList();
}
}
}