When using the code below I get corrupted xlsx file which can be fixed by removing the residual data from the connections.xml file.
What is causing the issue and how to fix this?
using (SpreadsheetDocument excelDoc = SpreadsheetDocument.Open(file.FullName, true))
{
WorkbookPart workbookpart = excelDoc.WorkbookPart;
ConnectionsPart connPart = workbookpart.ConnectionsPart;
string spreadsheetmlNamespace = #"http://schemas.openxmlformats.org/spreadsheetml/2006/main";
NameTable nt = new NameTable();
XmlNamespaceManager nsManager = new XmlNamespaceManager(nt);
nsManager.AddNamespace("sh", spreadsheetmlNamespace);
XmlDocument xdoc = new XmlDocument(nt);
xdoc.Load(connPart.GetStream());
XmlNode oxmlNode = xdoc.SelectSingleNode("/sh:connections/sh:connection/sh:dbPr/#connection", nsManager);
oxmlNode.Value = oxmlNode.Value.Replace(oxmlNode.Value, "foo");
xdoc.Save(connPart.GetStream());
}
What comes out as connections.xml looks like this:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<connections xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
<connection id="1" keepAlive="1" name="LCR" type="5" refreshedVersion="4" background="1" saveData="1">
<dbPr connection="foo" command="test" commandType="1" />
<olapPr sendLocale="1" rowDrillCount="1000" serverFill="0" serverFont="0" serverFontColor="0" />
</connection>
</connections>y Options=2;MDX Missing Member Mode=Error;Disable Prefetch Facts=True" command="test" commandType="1"/><olapPr sendLocale="1" rowDrillCount="1000" serverFill="0" serverFont="0" serverFontColor="0"/></connection></connections>
Please note the residual data at the end. If this is removed, xlsx can be open again.
Fixed this by adding extra line which clears the part before adding data to it.
...
oxmlNode.Value = oxmlNode.Value.Replace(oxmlNode.Value, newConnection);
connPart.FeedData(connPart.GetStream()); //Added
xdoc.Save(connPart.GetStream())
...
From MSDN:
Feed data into the part stream. The stream of the part will be
truncated at first.
Found the answer thanks to SO Related question section. Particularly, OpenXML replace specific customxml part of word document.
Related
After I could create an xml, and adding data and element to it, I want to be able to remove a specific element from it as well. I tried to follow what it said from here Deleting XML element nodes, then I could be able to remove any element from it; however, it does not remove that element completely; therefore, it's producing an error to my xml file.
My sample xml is like this (before removing)
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!--Favorite's xml-->
<favorites>
<favorite id="1" pro_id="1" pro_name="Boots Expert Anti-Blemish Cleansing Foam" cate_xml="ProductsOily.xml" pro_image="images/Oily-Dry/BO001.JPG" />
<favorite id="2" pro_id="2" pro_name="Clean & Clear Advantage Oil Absorbing Cream Cleanser" cate_xml="ProductsOily.xml" pro_image="images/Oily-Dry/BP251.jpg" />
</favorites>
From example, I tried to remove an element that has pro_id equals 1, but my xml file, after remove, became like this
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<!--Favorite's xml-->
<favorites>
<favorite id="2" pro_id="2" pro_name="Clean & Clear Advantage Oil Absorbing Cream Cleanser" cate_xml="ProductsOily.xml" pro_image="images/Oily-Dry/BP251.jpg" />
</favorites>" pro_name="Clean & Clear Advantage Oil Absorbing Cream Cleanser" cate_xml="ProductsOily
Here is my code to do this:
var storage = IsolatedStorageFile.GetUserStoreForApplication();
fileName = "Favorite\\Favorite.xml";
XDocument docx = null;
using (IsolatedStorageFileStream isoStreamx = new IsolatedStorageFileStream(fileName, FileMode.Open, storage))
{
// isoStreamx.Position = 0;
docx = XDocument.Load(isoStreamx);
isoStreamx.SetLength(docx.ToString().Length);
docx.Root.Elements().Where(x => x.Attribute("pro_id").Value == NavigationContext.QueryString["id"] as string).Remove();
isoStreamx.Position = 0;
docx.Save(isoStreamx);
}
How can I completely remove an element? Please help me, thanks.
You're currently reusing the same stream to save over the top. That will only overwrite data - it won't truncate the file at the end point of your document. What you really want to do is effectively create a new file. Something like:
var storage = IsolatedStorageFile.GetUserStoreForApplication();
fileName = "Favorite\\Favorite.xml";
XDocument docx = null;
using (var isoStreamx = new IsolatedStorageFileStream(fileName, FileMode.Open, storage))
{
docx = XDocument.Load(isoStreamx);
}
var target = (string) NavigationContext.QueryString["id"];
docx.Root
.Elements()
.Where(x => x.Attribute("pro_id").Value == target)
.Remove();
using (var isoStreamx = new IsolatedStorageFileStream(fileName, FileMode.Create, storage))
{
docx.Save(isoStreamx);
}
You could keep your current code, and just call isoStreamx.SetLength(isoStreamx.Position) at the end (removing the current pointless and broken SetLength call) - but I think it's cleaner to use the code above.
I am trying to read OSIS formatted documents. I have cut the document down to a simple fragment:
<?xml version="1.0" encoding="utf-8"?>
<osis xmlns="http://www.bibletechnologies.net/2003/OSIS/namespace">
<osisText osisRefWork="Bible" osisIDWork="kjv" xml:lang="en">
</osisText>
</osis>
I try to read it with this sample code from the MSDN documentation:
XPathDocument document = new XPathDocument("osis.xml");
XPathNavigator navigator = document.CreateNavigator();
XPathNodeIterator nodes = navigator.Select("/osis/osisText");
while (nodes.MoveNext())
{
Console.WriteLine(nodes.Current.Name);
}
The problem is that the selection contains no nodes and throws no exception. Since the code discards the root tag, I can't read the document. If I remove the xmlns="http://www.bibletechnologies.net/2003/OSIS/namespace" from the root osis tag, it works just fine. The offensive URL returns a 404 code, but otherwise I see nothing wrong with this XML. Can someone explain why this code won't read the document? What options do I have besides hand editing every document before trying to load it?
Your XPath expression is missing a namespace prefix.
The element that you're trying to select has a namespace URI of http://www.bibletechnologies.net/2003/OSIS/namespace, and XPath will not match these nodes using paths with an empty namespace URI.
I tested this revision in .NET 2.0 and it found the node as expected.
XPathDocument document = new XPathDocument("osis.xml");
XPathNavigator navigator = document.CreateNavigator();
XmlNamespaceManager xmlns = new XmlNamespaceManager(navigator.NameTable);
xmlns.AddNamespace("osis", "http://www.bibletechnologies.net/2003/OSIS/namespace");
XPathNodeIterator nodes = navigator.Select("/osis:osis/osis:osisText", xmlns);
You can read the file to a string, replace the namespace in memory, and then load it using a string stream:
string s;
using(var reader = File.OpenText("osis.xml"))
{
s = reader.ReadToEnd();
}
s = s.Replace("xmlns=\"http://www.bibletechnologies.net/2003/OSIS/namespace\"", "");
Stream stream = new MemoryStream(Encoding.ASCII.GetBytes(s));
XPathDocument document = new XPathDocument("stream");
// Rest of the code
I am trying to log some XML responses from a WCF Service using log4net.
I want the output of the XML file to the log to be in properly formed XML. The request comes in as an XMLElement.
Example:
The request comes in as this:
<?xml version="1.0" encoding="utf-8"?>
<ApplicationEvent xmlns="http://courts.wa.gov/INH_TV/ApplicationEvent.xsd">
<Severity xmlns="">Information</Severity>
<Application xmlns="">Application1</Application>
<Category xmlns="">Timings</Category>
<EventID xmlns="">1000</EventID>
<DateTime xmlns="">2012-09-02T12:05:15.234Z</DateTime>
<MachineName xmlns="">Server1</MachineName>
<MessageID xmlns="">10000000-0000-0000-0000-000000000000</MessageID>
<Program xmlns="">Progam1</Program>
<Action xmlns="">Entry</Action>
<UserID xmlns="">User1</UserID>
</ApplicationEvent>
Then if I output this value to log4net.
logger.Info(request.OuterXml);
I get the entire document logged in a single line like so:
<ApplicationEvent xmlns="http://courts.wa.gov/INH_TV/ApplicationEvent.xsd"><Severity xmlns="">Information</Severity><Application xmlns="">Application1</Application><Category xmlns="">Timings</Category><EventID xmlns="">1000</EventID><DateTime xmlns="">2012-09-02T12:05:15.234Z</DateTime><MachineName xmlns="">Server1</MachineName><MessageID xmlns="">10000000-0000-0000-0000-000000000000</MessageID><Program xmlns="">Progam1</Program><Action xmlns="">Entry</Action><UserID xmlns="">User1</UserID></ApplicationEvent>
I would like it to display in the log.txt file formatted correctly as it came in. So far the only way I have found to do this is to convert it to an XElement like so:
XmlDocument logXML = new XmlDocument();
logXML.AppendChild(logXML.ImportNode(request, true));
XElement logMe = XElement.Parse(logXML.InnerXml);
logger.Info(logMe.ToString());
This doesn't seem like good programming to me. I have been searching the documentation and I can't find a built-in way to output this correctly without converting it.
Is there an obvious, better way that I am just missing?
edit1: Removed ToString() since OuterXML is a String value.
edit2: I answered my own question:
So I did some more research, and I guess I missed a piece of code in the documentation.
http://msdn.microsoft.com/en-us/library/system.xml.xmlnode.outerxml.aspx
I have it down to:
using (MemoryStream ms = new MemoryStream())
{
XmlWriterSettings xws = new XmlWriterSettings();
xws.Indent = true;
using (XmlWriter xmlWriter = XmlWriter.Create(ms, xws))
{
request.WriteTo(xmlWriter);
}
ms.Position = 0; StreamReader sr = new StreamReader(ms);
string s = sr.ReadToEnd(); // s will contain indented xml
logger.Info(s);
}
Which is a little more efficient than my current method despite being more verbose.
XElement parse is the cleanest way. You can save a line or two with:
logger.Info(XElement.Parse(request.OuterXml).ToString());
I have a related post asking how to select nodes from an XmlDocument using an XPath statement.
The only way I could get the SelectNodes to work was to create a non default namespace "x" and then explicitly reference the nodes in the XPath statement.
Whilst this works and provides me with a node list, the canonicalization then fails to produce any content to my selected nodes in the output.
I've tried using XmlDsigExcC14NTransform and specifying the namespace but this produces the same output.
Below is an example of the xml output produced (using the XML in my related post):
<Applications xmlns="http://www.myApps.co.uk/">
<Application>
<ApplicantDetails>
<Title>
</Title>
<Forename>
</Forename>
<Middlenames>
<Middlename>
</Middlename>
</Middlenames>
<PresentSurname>
</PresentSurname>
<CurrentAddress>
<Address>
<AddressLine1>
</AddressLine1>
<AddressLine2>
</AddressLine2>
<AddressTown>
</AddressTown>
<AddressCounty>
</AddressCounty>
<Postcode>
</Postcode>
<CountryCode>
</CountryCode>
</Address>
<ResidentFromGyearMonth>
</ResidentFromGyearMonth>
</CurrentAddress>
</ApplicantDetails>
</Application>
<Application>
<ApplicantDetails>
<Title>
</Title>
<Forename>
</Forename>
<Middlenames>
<Middlename>
</Middlename>
</Middlenames>
<PresentSurname>
</PresentSurname>
<CurrentAddress>
<Address>
<AddressLine1>
</AddressLine1>
<AddressLine2>
</AddressLine2>
<AddressTown>
</AddressTown>
<AddressCounty>
</AddressCounty>
<Postcode>
</Postcode>
<CountryCode>
</CountryCode>
</Address>
<ResidentFromGyearMonth>
</ResidentFromGyearMonth>
</CurrentAddress>
</ApplicantDetails>
</Application>
</Applications>
Another StackOverflow user has had a similar problem here
Playing around with this new code, I found that the results differ depending upon how you pass the nodes into the LoadInput method. Implementing the code below worked.
I'm still curious as to why it works one way and not another but will leave that for a rainy day
static void Main(string[] args)
{
string path = #"..\..\TestFiles\Test_1.xml";
if (File.Exists(path) == true)
{
XmlDocument xDoc = new XmlDocument();
xDoc.PreserveWhitespace = true;
using (FileStream fs = new FileStream(path, FileMode.Open))
{
xDoc.Load(fs);
}
//Instantiate an XmlNamespaceManager object.
System.Xml.XmlNamespaceManager xmlnsManager = new System.Xml.XmlNamespaceManager(xDoc.NameTable);
//Add the namespaces used to the XmlNamespaceManager.
xmlnsManager.AddNamespace("x", "http://www.myApps.co.uk/");
// Create a list of nodes to have the Canonical treatment
XmlNodeList nodeList = xDoc.SelectNodes("/x:ApplicationsBatch/x:Applications|/x:ApplicationsBatch/x:Applications//*", xmlnsManager);
//Initialise the stream to read the node list
MemoryStream nodeStream = new MemoryStream();
XmlWriter xw = XmlWriter.Create(nodeStream);
nodeList[0].WriteTo(xw);
xw.Flush();
nodeStream.Position = 0;
// Perform the C14N transform on the nodes in the stream
XmlDsigC14NTransform transform = new XmlDsigC14NTransform();
transform.LoadInput(nodeStream);
// use a new memory stream for output of the transformed xml
// this could be done numerous ways if you don't wish to use a memory stream
MemoryStream outputStream = (MemoryStream)transform.GetOutput(typeof(Stream));
File.WriteAllBytes(#"..\..\TestFiles\CleanTest_1.xml", outputStream.ToArray());
}
}
How can I insert the following stylesheet information into my existing xml file which is created using C#?
<?xml-stylesheet type="text/xsl" href="_fileName.xsl"?>
Or.... Can I add this line at the time of creation of the new XML file?
Edit:
I tried to achieve the above using XmlSerialier (hit and trial), something like this:
// assumes 'XML' file exists.
XmlDocument doc = new XmlDocument();
XElement dataElements = XElement.Load("_fileName.xml");
XmlSerializer xs = new XmlSerializer(typeof(Parents));
var ms = new MemoryStream();
xs.Serialize(ms, parents);
ms.Seek(0, SeekOrigin.Begin); // rewind stream to beginning
doc.Load(ms);
XmlProcessingInstruction pi;
string data = "type=\"text/xsl\" href=\"_fileName.xsl\"";
pi = doc.CreateProcessingInstruction("xml-stylesheet", data);
doc.InsertBefore(pi, doc.DocumentElement); // insert before root
doc.DocumentElement.Attributes.RemoveAll(); // remove namespaces
But the output xml is getting corrupted:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="_fileName.xsl"?>
<parents />
Whereas the desired output is something like:
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="_fileName.xsl"?>
<parents>
<parent>
<Child1>
<child2>
</parent>
</parents>
Did this help to understand what's my problem???
You didn't answer the question.. "what lib do you use".
Although I advise:
XDocument
if you would use it you could do something like:
XDocument document = new XDocument(new XDeclaration("1.0", "utf-8", "yes"));
document.Add(new XProcessingInstruction(
"xml-stylesheet", "type=\"text/xsl\" href=\"_fileName.xsl\""));
//and then your actual document...
document.Add(
new XElement("parent",
new XElement("child1"),
new XElement("child2")
)
);
EDIT:
Ok So you could do it like:
XDocument document = XDocument.Load("file");
document.AddFirst(new XProcessingInstruction(
"xml-stylesheet", "type=\"text/xsl\" href=\"LogStyle.xsl\""));
Is this what you're looking for?