I currently have the following code:
XPathNodeIterator theNodes = theNav.Select(theXPath.ToString());
while (theNodes.MoveNext())
{
//some attempts i though were close
//theNodes.RemoveChild(theNodes.Current.OuterXml);
//theNodes.Current.DeleteSelf();
}
I have set xpath to what I want to return in xml and I want to delete everything that is looped. I have tried a few ways of deleting the information but it does't like my syntax. I found an example on Microsoft support: http://support.microsoft.com/kb/317666 but I would like to use this while instead of a for each.
Any comments or questions are appreciated.
Why not to use XDocument?
var xmlText = "<Elements><Element1 /><Element2 /></Elements>";
var document = XDocument.Parse(xmlText);
var element = document.XPathSelectElement("Elements/Element1");
element.Remove();
var result = document.ToString();
result will be <Elements><Element2 /></Elements>.
Or:
var document = XDocument.Load(fileName);
var element = document.XPathSelectElement("Elements/Element1");
element.Remove();
document.Savel(fileName);
[Edit] For .NET 2, you can use XmlDocument:
XmlDocument document = new XmlDocument();
document.Load(fileName);
XmlNode node = document.SelectSingleNode("Elements/Element1");
node.ParentNode.RemoveChild(node);
document.Save(fileName);
[EDIT]
If you need to remove all child elements and attributes:
XmlNode node = document.SelectSingleNode("Elements");
node.RemoveAll();
If you need to keep attributes, but delete elements:
XmlNode node = document.SelectSingleNode("Elements");
foreach (XmlNode childNode in node.ChildNodes)
node.RemoveChild(childNode);
string nodeXPath = "your x path";
XmlDocument document = new XmlDocument();
document.Load(/*your file path*/);
XmlNode node = document.SelectSingleNode(nodeXPath);
node.RemoveAll();
XmlNode parentnode = node.ParentNode;
parentnode.RemoveChild(node);
document.Save("File Path");
You can use XmlDocument:
string nodeXPath = "your x path";
XmlDocument document = new XmlDocument();
document.Load(/*your file path*/);//or document.LoadXml(...
XmlNode node = document.SelectSingleNode(nodeXPath);
if (node.HasChildNodes)
{
//note that you can use node.RemoveAll(); it will remove all child nodes, but it will also remove all node' attributes.
for (int childNodeIndex = 0; childNodeIndex < node.ChildNodes.Count; childNodeIndex++)
{
node.RemoveChild(node.ChildNodes[childNodeIndex]);
}
}
document.Save("your file path"));
Related
I'm complete rookie I need to retrieve the value of last id in XML file here is
You can also use XPath within the Xml DOM like this :
string title;
XmlDocument xml = new XmlDocument();
xml.Load("~/purchases.xml");
// Or any other method to load your xml data in the XmlDocument.
// For example if your xml data are in a string, use the LoadXml method.
XmlElement elt = xml.SelectSingleNode("//SubMenu[#id='1']") as XmlElement;
if(elt!=null)
{
name=elt.GetAttribute("title");
}
Reference
As Jon suggested, you can use Linq To XML here.
XElement books = XElement.Load(filePath);
var lastId = books.Descendants("book").Select(x=>Int32.Parse(x.Attribute("ID").Value)).Last();
This will give you the last ID in the current list.You can now create your new Node
books.Add(new XElement("book",new XAttribute("ID",(lastId+1).ToString()),
new XAttribute("title","New Title"),
new XAttribute("price","1234")));
books.Save(filePath);
XmlDocument doc = new XmlDocument();
doc.Load("Yourxmlfilepath.xml");
//Display all the book titles.
XmlNodeList xNodeList = doc.SelectNodes("/bookstore/book");
foreach (XmlNode xNode in xNodeList)
{
var employeeName = xNode.OuterXml;
XmlDocument docnew = new XmlDocument();
docnew.LoadXml(employeeName);
foreach (XmlElement report in docnew.SelectNodes("book"))
{
string ID = report.GetAttribute("ID");
string title = report.GetAttribute("title");
string quantity = report.GetAttribute("quantity");
string price = report.GetAttribute("price");
}
}
I want to add an XmlNode to another XmlNode if it doesn't contain this node (the comparison should be based on the node name and its contents)
System.Xml.XmlDocument doc;
...
XmlNode newNode = doc.CreateElement(name);
newNode.InnerXml = something
XmlNode parentNode = doc.GetElementsByTagName(parentName);
if (parentNode.???? (newNode))
{
parentNode.AppendChild(newNode);
}
How can I check this existence? parentNode.ChildNodes doesn't have a Contain method.
I think this will do the trick:
private void doSomething()
{
XmlDocument doc = new XmlDocument();
XmlNode newNode = doc.CreateElement("name");
newNode.InnerXml = "something";
XmlNode parentNode = doc.GetElementsByTagName("parentName")[0];
// I just stuck an index on end of above line...
// Note that GetElementsByTagName returns an XmlNodeList
int huh = 0;
foreach (XmlNode n in parentNode.ChildNodes)
{
// If I understood you correctly, you want these checks?
if (n.InnerXml == newNode.InnerXml && n.Name == newNode.Name) huh++;
}
if (huh == 0) parentNode.AppendChild(newNode);
}
You could do this using LINQ to XML making use of the XNode.DeepEquals method to compare your child nodes for equality. An example might look like this - the duplicateChild will not be added but newChild will be:
var doc = new XDocument(
new XElement("parent",
new XElement("child", 1)));
var parent = doc.Descendants("parent").Single();
var duplicateChild = new XElement("child", 1);
var newChild = new XElement("child", 2);
if (!parent.Elements().Any(e => XNode.DeepEquals(e, duplicateChild)))
{
parent.Add(duplicateChild);
}
if (!parent.Elements().Any(e => XNode.DeepEquals(e, newChild)))
{
parent.Add(newChild);
}
A demo here: https://dotnetfiddle.net/1t4Q1b
I am using the below code to rename the xmlnode name dynamically. It's looping though the xml just fine, but it does not change the node name. Please help me to do this.
Sample XML doucment
- <NewDataSet>
- <Table5>
<FLD_ID>62</FLD_ID>
<FLD_DATE>2013-03-12</FLD_DATE>
<FLD_MOD_DATE>2013-04-05</FLD_MOD_DATE>
<FLD_DESC>New Creation</FLD_DESC>
</Table5>
- </NewDataSet>
Needed XML DOCUMENT
- <rows>
- <row>
<cell>62</cell>
<cell>2013-03-12</cell>
<cell>2013-04-05</cell>
<cell>New Creation</cell>
</row>
- </rows>
My code is here
XmlNode PackageListNode = hst_doc.SelectSingleNode("NewDataSet");
XmlNodeList PackageNodeList = PackageListNode.SelectNodes("Table5");
foreach (XmlNode node in PackageNodeList)
{
node.Name.Replace("Table5", "row");
foreach (XmlNode ls in node)
{
ls.Name.Replace(ls.Name, "cell");
}
}
As you can't replace element names in an XmlDocument...
...a replacement approach for your specific situation:
string srcXML = "<NewDataSet><Table5><FLD_ID>62</FLD_ID><FLD_DATE>2013-03-12</FLD_DATE><FLD_MOD_DATE>2013-04-05</FLD_MOD_DATE><FLD_DESC>New Creation</FLD_DESC></Table5></NewDataSet>";
var doc = new XmlDocument();
doc.LoadXml(srcXML);
XmlNode oldRoot = doc.SelectSingleNode("NewDataSet");
XmlNode newRoot = doc.CreateElement("rows");
doc.ReplaceChild(newRoot, oldRoot);
foreach (XmlNode childNode in oldRoot.ChildNodes)
{
newRoot.AppendChild(childNode.CloneNode(true));
}
XmlNodeList PackageNodeList = newRoot.SelectNodes("Table5");
foreach (XmlNode node in PackageNodeList)
{
var newNode = doc.CreateElement("row");
newRoot.ReplaceChild(newNode, node);
foreach (XmlNode childNode in node.ChildNodes)
{
var clonedChildNode = childNode.CloneNode(true);
newNode.AppendChild(clonedChildNode);
var newChildNode = doc.CreateElement("cell");
newNode.ReplaceChild(newChildNode, clonedChildNode);
foreach (XmlNode childChildNode in clonedChildNode.ChildNodes)
{
newChildNode.AppendChild(childChildNode.CloneNode(true));
}
}
}
Debug.Print(doc.OuterXml);
Embrace LINQ, embrace it!
// load the document from a file
var doc = XDocument.Load(xmlPath);
var root = doc.Root;
// replace the root element with a new element
root.ReplaceWith(
// create a new element with
// the name "rows" with new children
new XElement("rows",
// replace all child elements of
// the root with new elements
root.Elements().Select(table =>
// replace the current element with a new element
// with the name "row" with the new children
new XElement("row",
// replace all child elements of the
// current element with new elements
table.Elements().Select(field =>
// replace the current element with a new element
// with the name "cell" with the same value
new XElement("cell",
(string)field
)
)
)
)
)
);
// save the document back to the file
doc.Save(xmlPath);
String.Replace returns a new string, so of course one would love to:
node.Name = node.Name.Replace("Table5", "row");
which might as well be
node.Name = "row";
however, if you look at the documentation it says that XmlNode.Name is purely a 'getter' and not a 'setter', so maybe you'll need to create whole new nodes to replace them, it depends on the actual implementation, since XmlNode is an abstract class.
for (int i = 0; i < PackageNodeList.Count; ++i) XmlNode node in PackageNodeList)
{
XmlNode replacementNode = new XmlNode("row");
foreach (XmlNode ls in node)
{
XmlNode newCell = new XmlNode("cell");
newCell.Value = ls.Value;
replacementNode.AppendChild(newCell);
}
PackageNodeList[i] = replacementNode
PackageNodeList[i].ParentNode.ReplaceChild(PackageNodeList[i], replacementNode);
}
I have got below code in which I am taking html and then reading all the img and a links. Note this is C# 2.0.
string xml = "<xhtml>" + inputXhtml + "</xhtml>";
XmlDocument node = new XmlDocument();
node.LoadXml(xml);
foreach (XmlElement element in TemplateUtilities.SelectNodes(node, "//html:img[#xlink:href]|//html:a[#xlink:href]"))
{
bool flag = element.LocalName == "img";
lStrCompLinkText = "";
XmlAttributeCollection attributes = element.Attributes;
XmlAttribute namedItem = (XmlAttribute)attributes.GetNamedItem("href", "http://www.w3.org/1999/xlink");
string str2 = namedItem.Value;
Component currentObject = engine.GetObject(str2) as Component;
if (flag)
{
element.SetAttribute("src", str2);
}
else
{
foreach (XmlNode xnode in element.ChildNodes)
{
lStrCompLinkText = lStrCompLinkText + xnode.OuterXml;
}
string attr = ComponentBase.ComponentHelper.ComponentLinkAttributes(element, engine);
string compLink = ComponentBase.ComponentHelper.DisplayPublishedComponentLink(currentObject, lStrCompLinkText, attr, engine, package, pageObject);
attributes.RemoveNamedItem("href", "http://www.tridion.com/ContentManager/5.0");
//Here I want to replace whole element with the compLink
}
attributes.RemoveNamedItem("href", "http://www.w3.org/1999/xlink");
attributes.RemoveNamedItem("type", "http://www.w3.org/1999/xlink");
attributes.RemoveNamedItem("title", "http://www.w3.org/1999/xlink");
}
Now I want to replcace my element with the new value compLink and add back to the input HTML
Please suggest
At the spot where your comment "// Here I want to replace" appears do the following.
Create an XML Document from the contentes of compLink (assuming it's XML).
XmlDocument xmlTemp = new XmlDocument();
xmlTemp.loadXml( compLink );
Remove the original element from it's parent with the following code
XmlNode ndParent = element.ParentNode;
ndParent.RemoveChild( element);
Import and append the new xmlTemp to the parent
XmlNode ndImport = ndParent.OwnerDocument.ImportNode( xmlTemp.documentElement, true );
ndParent.AppendChild( ndImport.CloneNode( true ) );
I solved my above problem using below logic:
XmlDocument lObjTCDCodeDom = new XmlDocument();
lObjTCDCodeDom.LoadXml("<TCDCode/>");
lObjTCDCodeDom.DocumentElement.InnerText = compLink;
element.ParentNode.ReplaceChild(node.ImportNode(lObjTCDCodeDom.DocumentElement, true), element);
and then further wrote the XSLT which check the <TCDCode/> and replaces it and then I get actual updated xml.
I'm trying to create the following XML file:
<Clientes>
<Cliente>
<Name>sfsdfsd</Name>
<Phone>
</Phone>
<Matriculas>
<Matricula>
<Nr>567856786</Nr>
<Marca>86786</Marca>
<Modelo>8678678</Modelo>
</Matricula>
<Matricula>
<Nr>u56u5u</Nr>
<Marca>4564b5</Marca>
<Modelo>b456b</Modelo>
</Matricula>
</Matriculas>
</Cliente>
</Clientes>
I have several clientes stored in a List and each of them may have more then one Matricula, stored in a List
i have the following code:
foreach (Cliente c in cli)
{
XmlNode xCliente = xDoc.CreateElement("Cliente");
XmlNode xName = xDoc.CreateElement("Name");
XmlNode xPhone = xDoc.CreateElement("Phone");
XmlNode xMatriculas = xDoc.CreateElement("Matriculas");
XmlNode xMatricula = xDoc.CreateElement("Matricula");
XmlNode xNr = xDoc.CreateElement("Nr");
XmlNode xMarca = xDoc.CreateElement("Marca");
XmlNode xModelo = xDoc.CreateElement("Modelo");
xName.InnerText = c.Name;
xPhone.InnerText = c.Phone;
xCliente.AppendChild(xName);
xCliente.AppendChild(xPhone);
foreach (Matricula m in c.matricula)
{
xNr.InnerText = m.nr;
xMarca.InnerText = m.marca;
xModelo.InnerText = m.modelo;
xMatricula.AppendChild(xNr);
xMatricula.AppendChild(xMarca);
xMatricula.AppendChild(xModelo);
xMatriculas.AppendChild(xMatricula);
}
xCliente.AppendChild(xMatriculas);
xDoc.DocumentElement.AppendChild(xCliente);
}
i can add several Cliente to the root, but only the last Matricula in Matriculas is added.
Move
XmlNode xMatricula = xDoc.CreateElement("Matricula");
XmlNode xNr = xDoc.CreateElement("Nr");
XmlNode xMarca = xDoc.CreateElement("Marca");
XmlNode xModelo = xDoc.CreateElement("Modelo");
inside the inner for loop.
You are reusing the exact same node, you need to create a new node every time you want a new node in your document.