This removes all elements from the document:
XDocument document = XDocument.Load(inputFile);
foreach (XElement element in document.Elements())
{
element.Remove();
}
document.Save(outputFile);
This doesn't have any effect:
XDocument document = XDocument.Load(inputFile);
foreach (XElement element in document.Elements())
{
//element.Remove();
foreach (XElement child in element.Elements())
child.Remove();
}
document.Save(outputFile);
Am I missing something here? Since these are all references to elements within the XDocument, shouldn't the changes take effect? Is there some other way I should be removing nested children from an XDocument?
Thanks!
Apparently when you iterate over element.Elements(), calling a Remove() on one of the children causes the enumerator to yield break. Iterating over element.Elements().ToList() fixed the problem.
Here's an example of another way using System.Xml.XPath (change the xpath query to suit your needs):
const string xml =
#"<xml>
<country>
<states>
<state>arkansas</state>
<state>california</state>
<state>virginia</state>
</states>
</country>
</xml>";
XDocument doc = XDocument.Parse(xml);
doc.XPathSelectElements("//xml/country/states/state[.='arkansas']").ToList()
.ForEach(el => el.Remove());;
Console.WriteLine(doc.ToString());
Console.ReadKey(true);
When using XDocument try this instead:
XDocument document = XDocument.Load(inputFile);
foreach (XElement element in document.Elements())
{
document.Element("Root").SetElementValue(element , null);
}
document.Save(outputFile)
Regards,
Todd
Related
I am new to C#, kindly help me. How to remove the single xml element node 'PaymentRecord' and content inside that should not get deleted.
<Payments>
<PaymentRecord>
<PayId>2031</PayId>
<Reference>Policy03</Reference>
<StatusCode>ACV</StatusCode>
<MethodDetail>
<PaymentMethodDetail>
<CardPaymentDetails>
<CardHolderName>abcded</CardHolderName>
<CardTransactionDetails>
<StoredCard>N</StoredCard>
</CardTransactionDetails>
</CardPaymentDetails>
</PaymentMethodDetail>
</MethodDetail>
<CurrencyCode>USD</CurrencyCode>
</PaymentRecord>
</Payments>
I need to remove "PaymentRecord" element from the XML. I need like below
<Payments>
<PayId>2031</PayId>
<Reference>Policy03</Reference>
<StatusCode>ACV</StatusCode>
<MethodDetail>
<PaymentMethodDetail>
<CardPaymentDetails>
<CardHolderName>abcded</CardHolderName>
<CardTransactionDetails>
<StoredCard>N</StoredCard>
</CardTransactionDetails>
</CardPaymentDetails>
</PaymentMethodDetail>
</MethodDetail>
<CurrencyCode>USD</CurrencyCode>
</Payments>
I have tried my below code, but its deleting the complete node which I don't want to do :- here 'queuePayload' is the xml element
XmlNodeList payloadRecordList = queuePayload.SelectNodes("//Payments/PaymentRecord");
foreach (XmlElement singleNode in payloadRecordList)
{
XmlHelper.removeElem((XmlElement)singleNode.ParentNode, "//PaymentRecord");
XmlDocument xmlDoc = singleNode.OuterXml;
// my remaining logic goes based on "xmldoc" value - I will inserting this data to table
}
You can use System.Xml.Linq with its XDocument to achiev this. Load the input and create a new document out of it like:
XDocument inputDoc = XDocument.Load(inputFile, LoadOptions.None);
XDocument outputDoc = new XDocument();
var elements = inputDoc.Element("Payments").Elements().Select(pr => pr.Elements());
XElement newElement = new XElement("Payments");
foreach (var element in elements)
{
newElement.Add(element);
}
outputDoc.Add(newElement);
Console.WriteLine(outputDoc.ToString());
I think #Fructzwerg is slightly overcomplicating it.
You can remove the PaymentRecord node and add all its children to the root in one go.
var xDoc = XDocument.Load(filePath);
var paymentRecord = xDoc.Root.Element("PaymentRecord");
var nodes = xDoc.Root.Element("PaymentRecord").Elements();
paymentRecord.Remove();
xDoc.Root.Add(nodes);
Console.WriteLine(xDoc.ToString());
dotnetfiddle
I have problem with parse XML, this is my xml:
<Invoice version="6.0.1">
<DocumentType>1</DocumentType>
<ID>FV17116113</ID>
<InvoiceLines>
<InvoiceLine>
<UnitPrice>25</UnitPrice>
</InvoiceLine>
<InvoiceLine>
<UnitPrice>55</UnitPrice>
</InvoiceLine>
</InvoiceLines>
</Invoice>
i try this code:
XmlDocument xml= new XmlDocument();
xml.Load(sourcexml);
foreach (XmlElement row in xml.DocumentElement.SelectNodes("InvoiceLines/InvoiceLine"))
{
}
But i have nothing in element row....
Have you any idea please?
I actually cannot understand your problem?
I guess you should remove xmlns attribute from your Invoice node.
Remove this
xmlns="http://isdoc.cz/namespace/2013"
Then, your code will work
foreach (XmlElement row in xml.DocumentElement.SelectNodes("InvoiceLines/InvoiceLine"))
{
Console.WriteLine(row.InnerText);
}
I have an xml document with setup similiar to this:
<invoice>
<IssueDate>2015-09-07</IssueDate>
<InvoiceType>380<InvoiceType>
<AccountingSupplierParty>
<Party>
<EndpointID></EndpointID>
<PartyName>
<Name>Company test</Name>
</PartyName>
</Party>
</AccountingSupplierParty>
</invoice>
This is just a little piece of the entire xml document, just to show how the file looks.
I would like to check all the elements too see if they have empty values, such as EndpointID in this example (I need to replace empty values with NA).
This is what I have so far:
public static void AddToEmptyElements()
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load("testXml.xml");
XmlNodeList nodes = xmlDoc.DocumentElement.ChildNodes;
foreach (XmlNode node in nodes)
{
Console.WriteLine(node.Name);
}
}
However, this code will only loop through the childs of the root node and not all the grandchilds (or great grandchilds) such as the <Party> and <EndpointID> elements. How can I include these elements in the loop?
I'm not in an environment to test code right now, but isn't it possible to write a recursive method to loop further down the nodes?
Something like this (untested code):
private static void handleNode(XmlNode node)
{
if(node.HasChildNodes)
{
foreach(XmlNode child in node.ChildNodes)
{
handleNode(child);
}
}
else
Console.WriteLine(node.Name);
}
then call this method in place of your Console.WrintLine()
As Jon Skeet already said, you could do this using LINQ to XML.
XDocument xml = XDocument.Load(path);
var emptyElements = xml.Descendants().Where(xe => String.IsNullOrEmpty(xe.Value));
foreach (var xe in emptyElements)
xe.Value = "NA";
I am loading a xml document and I am having a foreach loop in its elements and I want to select child elements named tag in it.
This is the xml file:
<?xml version="1.0" encoding="utf-8"?>
<view>
<tag>
<name>content</name>
<tag>
<name>div</name>
</tag>
</tag>
</view>
And this is the code:
string xmlString = System.IO.File.ReadAllText(HttpContext.Current.Server.MapPath("~/xml/xml.xml"));
XDocument doc = XDocument.Parse(xmlString);
XElement xmlElement = doc.Element("view");
foreach (var tagItem in xmlElement.Descendants("tag"))
{
//do something
}
The code written in foreach loop would contain all of tag elements in any depth, but I want to get the first depth ones(the children).
How to do this with linq?
Assuming the desired elements are always children of the <view> element you can use:
XElement xmlElement = doc.Element("view");
foreach (var tagItem in xmlElement.Elements("tag"))
{
//do something (only direct children)
}
There is nothing more to be done to get the desired elements. You can then however implement your "do something" with Linq, for example:
XElement firstElem = xmlElement.Elements("tag").OrderBy(e => e.Name).First();
how to check whether child node is there for the product node in the following xml:
<product>
<SysSectionName>Processors</SysSectionName>
<section>
<subsection>
<SysSectionName>CPU#1</SysSectionName>
</subsection>
</section>
</product>
I have tried this:
foreach (XmlNode xn1 in sectionNode)
{
XmlNode node = xn1.FirstChild;
if (xn1.HasChildNodes)
{
//do something..
}
}
XmlNodeList snode = xmldoc.SelectNodes("/product/section/subsection");
foreach (XmlNode xn2 in snode)
{
//it comes inside if there will be a child node.
}
Try to use this piece of code to get the product nodes from XML:
XDocument doc = XDocument.Parse("Your Xml String");
var products = doc.Descendants("product");
foreach (var product in products)
{
//... do something ...
}
You mean you want to find whether product node has any child node?
If yes,
XmlNodeList productNodes = xmlDoc.SelectNodes("Product");
foreach(XmlNode pNode in productNodes)
{
if(pNode.ChildNodes.count >0)
{
}
}
I think XLinq (Linq for Xml) is what you're looking for.
Then you should load the Xml using XDocument, and for any XElement you have the "Descendants()" method, which returns list of child XElements. If there are no child elements, the list will have no elements as well.