I want to merge the names of parent nodes with names of child nodes to bring all to the top level. I don't even know where to start with code on this. I am using C#. I wish to exclude the root node from the merge process.
Example before:
<root>
<lastname>string</lastname>
<firstname>string</firstname>
<student>
<id>string</id>
<ssn>string</ssn>
</student>
</root>
XML after:
<root>
<lastname>string</lastname>
<firstname>string</firstname>
<studentid>string</studentid>
<studentssn>string</studentssn>
</root>
So the student parent has been merged with the id and ssn. Any help would be appreciated if this is even possible.
Related
I am trying to generate an Invoice xml for tax services, which contains one or many InvoiceLine elements.
The example xml lists "child" elements in the same level, under the root element, instead of being listed within a collection node.
For sake of simplicity I have removed some topic irrelevant nodes.
<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2" xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2" xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
<cbc:ID>TEST</cbc:ID>
<cac:InvoicePeriod>
<cbc:StartDate>2009-11-01</cbc:StartDate>
<cbc:EndDate>2009-11-30</cbc:EndDate>
</cac:InvoicePeriod>
<cac:InvoiceLine>
<cbc:ID>1</cbc:ID>
<cbc:Note>Item1</cbc:Note>
</cac:InvoiceLine>
<cac:InvoiceLine>
<cbc:ID>2</cbc:ID>
<cbc:Note>Item2</cbc:Note>
</cac:InvoiceLine>
</Invoice>
In the meantime, I have created data classes from the XSD files but, the InvoiceLine can only appear once in the resulting xml.
Can I replicate this behaviour using the xml serializer or i would have to build the whole xml from scratch using XmlWriter?
I'm trying to select an XML node, where another child of the parent node contains a specific value.
The XML looks like this:
<?xml version="1.0" encoding="UTF-8" ?>
<AuthorIT>
<Objects>
<Media>don't care</Media>
<Style>don't care</Style>
<Book>don't care</Book>
<Topic>don't care</Topic>
<Topic>
<Object>
<Description>Performance Evidence</Description>
</Object>
<Text>This is what I want to select</Text>
</Topic>
</Objects>
</AuthorIT>
I'm using XPath in C#. My query at the moment looks like this: (but doesn't work, obviously)
docNav = new XPathDocument(localFile);
nav = docNav.CreateNavigator();
xPath = "//Topic[Object/Description = 'Performance Evidence']/Text";
string value = nav.SelectSingleNode(xPath).Value;
How do I get the contents of the Text node, from the Topic that has an Object/Description value of "Performance Evidence"?
You should first select the Description node containing your needle text, then move back to the common parent and select the Text nodes that are its children.
//Topic/Object/Description[text()='Performance Evidence']/../../Text/text()
As Kirill Polishchuk said in a comment, my XPath was correct.
What I left out of the example XML was the key to the solution... Namespace!
I found my answer on this other question: Using Xpath With Default Namespace in C#
I have an xml document where i need to iterate over all nodes that are direct descendants of the parent.
For example i have the following xml document
<root>
<node1>val1</node1>
<node2>val2</node2>
<nodes>
<nestedNode>nestedvalue</nestedNode>
</nodes>
</root>
I have the following code which gets me all the elements:
XmlNodeList nodes = doc.SelectNodes("//*");
This returns node1, node2, and nestedNode. What i want is only node1 and node2 and to ignore any nested values.
Thanks in advance for any help.
To select elements that are children of the root element you would use the xpath:
/root/*
or in general:
/*/*
You should not traverse the all descendants here (//...) as that will go through all elements in the document. You would have to add additional filtering which would make the query unnecessarily complicated:
//*[parent::*[not(parent::*)]]
However, you want to filter out elements that do not have other child elements so you need to add the condition not(*):
/*/*[not(*)]
I have the following XML and I want to be able to query the XML based on the depth of it. I am aware of the depth before hand.
UPDATED QUESTION:
I have the following XML and I want to be able to query the XML based on if the nodes are repetitive.
So, this is my XML
<Books>
<BookID>12345</BookID>
<BookName>BookName</BookName>
<Authors>
<Author>
<Name>AuthorNameOne</Name>
<City>New York</City>
</Author>
<Author>
<Name>AuthorNameTwo</Name>
<City>New York</City>
</Author>
</Authors>
</Books>
Via XDocument I want to be able to query this XML and get node names for the elements where there is repetitive data such as Authors. Or I want to be able to query it based on the Depth of the Node.
UPDATED QUESTION:
Via XDocument I want to be able to query this XML and get node names for the elements where there is repetitive data such as Authors.
Any help will be much appreciated.
Your XML still doesn't really make sense, but I'm putting together this answer hoping that it will at least point you in the right direction. I'm going to completely ignore the portion of your question that references node depth because I'm not really sure how it applies to the following question that you posted:
Via XDocument I want to be able to query this XML and get node names for the elements where there is repetitive data such as Authors.
Here's how to do just that simple type query assuming that your XDocument is named xml:
List<XElement> repeatedNodes = new List<XElement>();
for(XElement node in xml.Descendants())
{
if(node.Parent.Elements(node.Name).Count() > 1))
{
repeatedNodes.Add(node);
}
}
Here's the same code compressed into a lambda that will provide you with an IEnumerable<XElement> containing all of the elements that would go into the List in my first example:
var dupes = xml.Descandants().Where(n => n.Parent.Elements(n.Name).Count() > 1);
This algorithm will look at every node in the xml tree and then from the parent of the current node it will count how many nodes with that same name exist. If that number is greater than one it will add it to our list of repeated nodes. This does not care what depth the current node is and it will only count duplicate named nodes at the same depth. Additionally this algorithm will put dupes in the List structure, but you can add in your own logic to prevent it from doing that or use a different structure that doesn't allow duplicates.
Given a piece of Xml Like the one below. How would I write an XPATH Query to get the value of the 'leaf2' child where the 'key' value has a particular values (say 2)
I'm working in C# .NET. At the moment I'm just looking at getting the Xpath for key using SelectNodes , finding the right value then navigating back up to leaf2.
<root>
<child>
<anotherChild>
<key>1</key>
</anotherChild>
<leaf1>X</leaf1>
<leaf2>Y</leaf2>
<leaf3></leaf3>
</child>
<child>
<anotherChild>
<key>2</key>
</anotherChild>
<leaf1>A</leaf1>
<leaf2>B</leaf2>
<leaf3></leaf3>
</child>
</root>
You want:
/root/child[anotherChild/key = '2']/leaf2
This is saying, "get elements named leaf2, whose parent is child and whose grandparent is root, where child is being filtered by its child named anotherChild with a child named key whose value is 2."
Or, perhaps a bit more flexibly because it doesn't assume the grandfather is root
//child/anotherChild/key[text()="2"]/../../leaf2
"find the key with text 2, parent anotherChild and grandparentchild, go to grandparent(i.e. child, and find leaf2"