I have edited this little MSDN example https://support.microsoft.com/en-us/kb/311530
And I have the following 2 XML's
Book1.xml
<?xml version="1.0"?>
<catalog>
<book1 id="1" />
<bookSum number="1" />
</catalog>
Book2.xml
<?xml version="1.0"?>
<catalog>
<book2 id="2" />
<bookSum number="1" specialAttribute="123" />
</catalog>
C# Code
XmlReader xmlreader1 = XmlReader.Create(#"C:\Book1.xml");
XmlReader xmlreader2 = XmlReader.Create(#"C:\book2.xml");
DataSet ds = new DataSet();
ds.ReadXml(xmlreader1);
DataSet ds2 = new DataSet();
ds2.ReadXml(xmlreader2);
ds.Merge(ds2);
ds.WriteXml(#"C:\Merge.xml");
Console.WriteLine("Completed merging XML documents");
Merge.xml (Book1.xml + Book2.xml)
<?xml version="1.0" standalone="yes"?>
<catalog>
<book1 id="1" />
<bookSum number="1" />
<bookSum number="1" specialAttribute="x" />
<book2 id="2" />
</catalog>
And the question is
how to join
<bookSum number="1" />
<bookSum number="1" specialAttribute="123" />
into one line ?
<bookSum number="2" specialAttribute="123" />
I did it this way and is working:
var doc = XDocument.Load(#"C:\Book1.xml");
doc.Root.Add(XDocument.Load(#"C:\Book2.xml").Root.Elements()); // merged
var sum = doc.Descendants("bookSum").Attributes("number").Sum(t => int.Parse(t.Value));
var xElement = new XElement("bookSum", new XAttribute("number", sum));
foreach(var attrib in doc.Descendants("bookSum").Attributes())
{
if (xElement.Attribute(attrib.Name) == null)
xElement.Add(attrib);
}
doc.Descendants("bookSum").ToList().ForEach(t => t.ReplaceWith(xElement));
doc.Root.Descendants("bookSum").First().Remove();
Console.WriteLine(doc);
Related
I got fragmented xml file (document without root element/node):
<?xml version="1.0" standalone="no" ?>
<WndPos name="Login" l="703" r="1264" t="323" b="909" />
<WndPos name="Main" l="703" r="768" t="323" b="609" />
<LayerManager />
<ViewLayers name="Roof" roof="1">
<Layer level="1" visible="1" />
</ViewLayers>
<DirProfiles>
<ProfileInfo ProfileName="Control" DatabasePath="D:\Database\Control" />
</DirProfiles>
<DirHistory>
<ProfileInfo Use="Database" Path="D:\Database\Control" />
</DirHistory>
I am reading this file using the following:
string xmlPath = Environment.GetEnvironmentVariable("USERPROFILE") + "\\my.xml";
XmlReaderSettings settings = new XmlReaderSettings();
settings.ConformanceLevel = ConformanceLevel.Fragment;
XDocument doc = new XDocument(new XElement("root"));
XElement root = doc.Descendants().First();
using (StreamReader fs = new StreamReader(xmlPath))
using (XmlReader xr = XmlReader.Create(fs, settings))
{
while(xr.Read())
{
if (xr.NodeType == XmlNodeType.Element)
{
root.Add(XElement.Load(xr.ReadSubtree()));
}
}
}
Later on I change <DirProfiles>...</DirProfiles> section and getting the following data:
<?xml version="1.0" standalone="no" ?>
<WndPos name="Login" l="703" r="1264" t="323" b="909" />
<WndPos name="Main" l="703" r="768" t="323" b="609" />
<LayerManager />
<ViewLayers name="Roof" roof="1">
<Layer level="1" visible="1" />
</ViewLayers>
<DirProfiles>
<ProfileInfo ProfileName="Control1" DatabasePath="D:\Database\Control1" />
<ProfileInfo ProfileName="Control2" DatabasePath="D:\Database\Control2" />
<ProfileInfo ProfileName="Control3" DatabasePath="D:\Database\Control3" />
<ProfileInfo ProfileName="Control4" DatabasePath="D:\Database\Control4" />
<ProfileInfo ProfileName="Control5" DatabasePath="D:\Database\Control5" />
</DirProfiles>
<DirHistory>
<ProfileInfo Use="Database" Path="D:\Database\Control" />
</DirHistory>
This result xml fragment I have to write to the file which should be fragmented xml file (without root element).
I tried to do the following:
doc.Save();
But it saves with root element and application can't work with this xml.
I am trying to get the values of the title and link with the attribute equals to alternate. But with the namespaces, I find it a bit challenging to get the values.
I have added my namespaces as follows but my result is comming back with Enumeration yeilds no result:
nameSpaceManager_ = new XmlNamespaceManager(new NameTable());
nameSpaceManager_.AddNamespace("viz", "http://www.vizrt.com/atom");
nameSpaceManager_.AddNamespace("atom", "http://www.w3.org/2005/Atom");
I am using XDocument with a mixture of linq and xpath to query my data.
I use the XPath as follows:
var showName = showNode.XPathEvaluate("/atom:entry/atom:title/text()", nameSpaceManager_);
UPDATE
XML:
<?xml version="1.0" encoding="UTF-8"?>
<feed xml:base="http://127.0.0.1:8580/directory/shows/" xmlns="http://www.w3.org/2005/Atom">
<entry xmlns="http://www.w3.org/2005/Atom"
xmlns:viz="http://www.vizrt.com/atom">
<title>My Show</title>
<author>
<name>Media Sequencer</name>
</author>
<id>tag:user,2017-02-03:0:/directory/shows/My%20Show.show</id>
<updated>2017-02-03T11:41:05Z</updated>
<summary>Show My Show</summary>
<category scheme="http://www.vizrt.com/types" term="directory" />
<category scheme="http://www.vizrt.com/types" term="show" />
<category scheme="http://www.vizrt.com/types" term="trio_4_layer_collection" label="Trio 4 Layer Collection" />
<link type="application/atom+xml;type=feed" rel="alternate" href="http://127.0.0.1:8580/show/%7B4575C71F-FC79-4813-A92F-D6297D5C517C%7D/" />
<link type="application/atom+xml;type=entry" rel="self" href="http://127.0.0.1:8580/directory/shows/My%20Show.show" />
<viz:empty>false</viz:empty>
</entry>
<entry xmlns="http://www.w3.org/2005/Atom"
xmlns:viz="http://www.vizrt.com/atom">
<title>My Show 2</title>
<author>
<name>Media Sequencer</name>
</author>
<id>tag:user,2017-02-03:0:/directory/shows/My%20Show.show</id>
<updated>2017-02-03T11:41:05Z</updated>
<summary>Show My Show</summary>
<category scheme="http://www.vizrt.com/types" term="directory" />
<category scheme="http://www.vizrt.com/types" term="show" />
<category scheme="http://www.vizrt.com/types" term="trio_4_layer_collection" label="Trio 4 Layer Collection" />
<link type="application/atom+xml;type=feed" rel="alternate" href="http://127.0.0.1:8580/show/%7B4575C71F-FC79-4813-A92F-D6297D5C517C%7D/" />
<link type="application/atom+xml;type=entry" rel="self" href="http://127.0.0.1:8580/directory/shows/My%20Show.show" />
<viz:empty>false</viz:empty>
</entry>
</feed>
Updated Query:
var exEl = xmlDoc.XPathSelectElements("//atom:feed/atom:entry[atom:category/#term='show']", nameSpaceManager_);
foreach (var showNode in exEl.Cast<XElement>())
{
var showName = showNode.XPathSelectElement("/atom:entry/atom:title", nameSpaceManager_).Value;
var linkTypes = showNode.XPathSelectElements("/atom:entry/atom:link[#rel='alternate']", nameSpaceManager_)
.Select(e => e.Attribute("type").Value);
}
You do almost everything right.
Just use XPathSelectElement instead of XPathEvaluate.
var showName = showNode.XPathSelectElement("/atom:entry/atom:title", nameSpaceManager_).Value;
var linkTypes = showNode.XPathSelectElements("/atom:entry/atom:link[#rel='alternate']", nameSpaceManager_)
.Select(e => e.Attribute("type").Value);
I have an xml doc layout like so
<?xml version="1.0" encoding="utf-8" ?>
<Document name="document name">
<DataSet name="dataset 1">
<Dimension name="dimension 1">
<Metric name="metric 1">
<Data value="1">
<Data value="2">
<Data value="3">
</Metric>
<Metric name="metric 2">
<Data value="4">
<Data value="5">
<Data value="6">
</Metric>
</Dimension>
<Dimension name="dimension 2">
<Metric name="metric 3">
<Data value="6">
<Data value="7">
<Data value="8">
</Metric>
<Metric name="metric 4">
<Data value="9">
<Data value="10">
<Data value="11">
</Metric>
</Dimension>
</DataSet>
</Document>
I am attempting to split the Metrics out with their ancestors but not with their siblings. For example I want a file to look like...
<?xml version="1.0" encoding="utf-8" ?>
<Document name="document name">
<DataSet name="dataset 1">
<Dimension name="dimension 1">
<Metric name="metric 1">
<Data value="1">
<Data value="2">
<Data value="3">
</Metric>
</Dimension>
</DataSet>
</Document>
and file 2 to look like ...
<?xml version="1.0" encoding="utf-8" ?>
<Document name="document name">
<DataSet name="dataset 1">
<Dimension name="dimension 1">
<Metric name="metric 2">
<Data value="4">
<Data value="5">
<Data value="6">
</Metric>
</Dimension>
</DataSet>
</Document>
My attempt to solve this was to create a method that would accept an xmlfile, outputDirectory, elementName, attributeName, and attributeValue.
This would allow me to search the document for a specific metric and pull it out into its own file with its entire tree, but not with it's siblings.
at the top of my method i have...
XDocument doc = XDocument.Load(xmlFile);
IEnumerable<XElement> elementsInPath = doc.Descendants()
.Elements(elementName)
.Where(p => p.Attribute(attributeName).Value.Contains(attributeValue))
.AncestorsAndSelf()
.InDocumentOrder()
.ToList();
However when I iterate through the elementsInPath The output gives all of the parents of the matched "Metric" with each parent return all of its children, and the only child i want present is the one that was matched by the input params.
Any help would be appreciated. Just for reference I save the files using the following snippet
int i = 1;
foreach (XElement element in elementsInPath)
{
XDocument tmpDoc = new XDocument();
tmpDoc.Add(element);
tmpDoc.Save(outputDirectory + elementName + "_" + i + ".xml");
i++;
}
Also to note, If I use the following code I get the exact metrics I am looking for, but i need to encapsulate them within their parents.
IEnumerable<XElement> elementsInPath = doc.Descendants(elementName)
.Where(p => p.Attribute(attributeName).Value.Contains(attributeValue))
.InDocumentOrder()
.ToList();
So you're really building a new document for each Metric element. The most straightforward way to do this would be:
foreach (XElement el in doc.Root.Descendants("Metric"))
{
XElement newDoc =
new XElement("Document",
new XAttribute(doc.Root.Attribute("name")),
new XElement("DataSet",
new XAttribute(el.Parent.Parent.Attribute("name")),
new XElement("Dimension",
new XAttribute(el.Parent.Attribute("name")),
el)
)
)
);
newDoc.Save(el.Attribute("name").Value.Replace(" ", "_") + ".xml");
}
This hopefully illustrates how the dynamic version of this would work - iterate through the ancestors and create new elements based on them:
foreach (XElement el in doc.Root.Descendants("Metric"))
{
XElement newDoc = el;
foreach(XElement nextParent in el.Ancestors()) // iterate through ancestors
{
//rewrap in ancestor node name/attributes
newDoc = new XElement(nextParent.Name, nextParent.Attributes(), newDoc);
}
newDoc.Save(el.Attribute("name").Value.Replace(" ", "_") + ".xml");
}
Just using the Ancestors() functionality won't work, because when you tried to add them it would also add their children (the siblings of the element you're trying to split on).
I have the following xml code which I want to read into a dataset:
<?xml version="1.0" standalone="yes"?>
<jlqn:Root xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:jlqn="http://jlqn/1.0">
<element xsi:type="jlqn:Processor" name="test1" processor="test">
<metadata name="Removed" value="False" />
<task id="6">
<entry id="8" entry="" />
</task>
</element>
<element xsi:type="jlqn:Processor" name="test1" processor="test" id="1">
<metadata name="Removed" value="True" />
<metadata name="Removed1" value="Removed1" />
</element>
<element xsi:type="jlqn:Processor" name="test1" processor="test" id="3">
<metadata name="Removed" value="False" />
<task id="45" name="">
<metadata />
<entry id="10" entry="">
<metadata />
</entry>
</task>
</element>
<element name="test" />
</jlqn:Root>
I use the following C# code
DataSet newTable = new DataSet();
newTable.ReadXml(#"F:\QVT\runtime-EclipseApplication\dr5\HJYU.jlqn");
But when I check the dataset , I notice all the attributes with prefix are not read ..such as this : xsi:type="jlqn:Processor"
what can I do ?
The XML references an namespace prefix "xsi", but it is not defined. Change the root element to:
<jlqn:Root xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:jlqn="http://jlqn/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
Once I did this, I got the following tables and columns:
Root
Root_Id
version
element
element_Id
name
processor
id
Root_Id
metadata
name
value
element_Id
task
metadata
task_Id
id
name
element_Id
entry
metadata
id
entry
task_Id
That is the output from:
DataSet newTable = new DataSet();
newTable.ReadXml(#"XMLFile1.xml");
foreach(DataTable table in newTable.Tables)
{
Console.WriteLine(table.TableName);
foreach(DataColumn column in table.Columns)
{
Console.WriteLine(" " + column.ColumnName);
}
}
i am trying to parse an xml element (DItem >> Title)
below is my code but somehow i am not getting hold of it.... any help?
XDocument xdoc1 = XDocument.Load(url);
XNamespace ns = "http://sitename/items.xsd";
string topic = xdoc1.Descendants(ns + "DItem")
.Select(x => (string)x.Attribute("Title"))
.FirstOrDefault();
<?xml version='1.0'?>
<root xmlns="http://www.w3.org/2005/Atom">
<title type="text">title</title>
<entry>
<id>da7d3189-fd89-4d3f-901c-30eab7a3baa5</id>
<title type="text">Swimming Pools</title>
<summary type="text"></summary>
<updated>2011-08-19T19:02:21Z</updated>
<link rel="alternate" href="link" />
<link href="link" />
<content type="application/xml">
<Items xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://www.namespace.xsd">
<CatalogSource Acronym="ABC" OrganizationName="organization name" />
<Item Id="28466" CatalogUrl="url">
<DItem xmlns:content="http://namespace.xsd" TargetUrl="http://index.html" Title="my title">
<content:Source Acronym="ABC" OrganizationName="ABC" />
</DItem>
</Item>
</Items>
</content>
</entry>
</root>
Using the namespace "http://www.namespace.xsd" should (and does) work:
XNamespace ns = "http://www.namespace.xsd";
string topic = xdoc1.Descendants(ns + "DItem")
.Select(x => (string)x.Attribute("Title"))
.FirstOrDefault();
Since DItem is not qualified with a namespace itself, it will use the default namespace specified asxmlns="http://www.namespace.xsd" on its parent element.