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Altering string variable storing xml in c#

string content = ....
I have some XML content stored in a string as shown in the variable above. The content stored is similar to below ,
<?xml version="1.0"?>
<model xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Items>
<ItemModel xsi:type="TypeKeep">
<Name>Name01</Name>
</ItemModel>
<ItemModel xsi:type="TypeDelete">
<Name>Name02</Name>
</ItemModel>
<ItemModel xsi:type="TypeDelete">
<Name>Name03</Name>
</ItemModel>
</Items>
</model>
In here I want to remove all the elements which have the type="TypeDelete" . In the sense I am trying to alter the content variable by removing the elments of TypeDelete
Any idea how I can achieve this ?

Using xml linq :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
using System.IO;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
string xml = File.ReadAllText(FILENAME);
XDocument doc = XDocument.Parse(xml);
XNamespace xsiNs = doc.Root.GetNamespaceOfPrefix("xsi");
List<XElement> removeNodes = doc.Descendants("ItemModel").Where(x => (string)x.Attribute(xsiNs + "type") == "TypeDelete").ToList();
for (int i = removeNodes.Count - 1; i >= 0; i--)
{
removeNodes[i].Remove();
}
}
}
}

If you want to remove a specific XML node from an XML file directly you can go through this link and try this

Modifying two fields in .XML file

I have a XML file which looks like:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<UFCC xmlns="http://actel.com/sweng/afi">
<Region name="Region_0_0">
<content>
<static_data>
<fixed>
<value>11111111111111111111111111111111</value>
<type>HEX</type>
</fixed>
</static_data>
</content>
<region_start_word>0</region_start_word>
<number_of_word>16</number_of_word>
<simulation_value>
<value>11111111111111111111111111111111</value>
<type>HEX</type>
</simulation_value>
</Region>
<Region name="Region_1_0">
<content>
<static_data>
<fixed>
<value>BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB</value>
<type>HEX</type>
</fixed>
</static_data>
</content>
<region_start_word>16</region_start_word>
<number_of_word>16</number_of_word>
<simulation_value>
<value>BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB</value>
<type>HEX</type>
</simulation_value>
</Region>
<Program_Pages/>
</UFCC>
I'm trying to change value fields "11111111111111111111111111111111" to "A...A". I have tried this with Xml.Linq and using examples found online, from which none seem to work.
How can I modify these fields?
Sorry about the formatting, I'm not that familiar with proper XML formatting and the source file is written in single line.

You need to use the namespace :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = #"c:\temp\test.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XElement root = doc.Root;
XNamespace ns = root.GetDefaultNamespace();
List<XElement> values1s = doc.Descendants(ns + "value").Where(x => (string)x == "11111111111111111111111111111111").ToList();
foreach (XElement x in values1s)
{
x.SetValue(((string)x).Replace("1", "A"));
}
}
}
}

How to append a text in a Xml DOCTYPE declaration reference?

Lets say I've a doctype :
<!DOCTYPE beer PUBLIC "-//BEER//DTD beer DTD version 2.0//KF//XML" "Kingfisher.dtd">
My requirement is I have a path(text) which needs to be appended to the doctype like this :
path = "C:/Beer/"
So after appending path to dtd reference, my doctype should look like this :
<!DOCTYPE beer PUBLIC "-//BEER//DTD beer DTD version 2.0//KF//XML" "C:/Beer/Kingfisher.dtd">

You certainly could do this with regex, but you shouldn't. There are much better xml manipulation tools in .net.
var xml = "<!DOCTYPE beer PUBLIC \"-//BEER//DTD beer DTD version 2.0//KF//XML\" \"Kingfisher.dtd\"><root></root>";
var xd = XDocument.Parse(xml);
var path = "C:/Beer/";
xd.DocumentType.SystemId = Path.Combine(path, xd.DocumentType.SystemId)

Using Xml Linq :
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string xml = "<?xml version=\"1.0\" encoding=\"utf-8\" ?><!DOCTYPE beer PUBLIC \"-//BEER//DTD beer DTD version 2.0//KF//XML\" \"Kingfisher.dtd\"><root></root>";
XDocument doc = XDocument.Parse(xml);
XDocumentType _type = (XDocumentType)doc.Nodes().Where(x => x.NodeType == XmlNodeType.DocumentType).FirstOrDefault();
_type.SystemId = "C:/Beer/Kingfisher.dtd";
}
}
}

Read from 2 XML files using StreamReader

Assuming I have the following XML files:
Sample1.xml
<?xml version="1.0" encoding="utf-8"?>
<Root>
<NodeA>
<Node1>test1</Node1>
<Node1>test2</Node1>
</NodeA>
</Root>
Sample2.xml
<?xml version="1.0" encoding="utf-8"?>
<Root>
<NodeB>
<Node1>test1</Node1>
<Node1>test2</Node1>
</NodeB>
</Root>
My goal is to deserialize those 2 xml files using one factory method.
For that I have the following generic code:
public static T get<T>() where T : class // class = all reference types
{
string Ttype = typeof(T).Name;
using (var streamReader1 = new StreamReader(directoryPath + #"\Sample1.xml"))
using (var streamReader2 = new StreamReader(directoryPath + #"\Sample2.xml"))
using (var xmlReader ??? = XmlReader.Create(streamReader))
{
...
}
}
Built both xml files with the same root element.
My question is, since the xmlReader create function accepts only 1 stream reader.
How in the name of *, do i read with the xml reader from 2 xmls?
Do I combine 2 streams into 1 and read from 1st bit to the last 1, if so, how?
Thanks in advance,
Montana.

I would do it like this
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME1 = #"c:\temp\test.xml";
const string FILENAME2 = #"c:\temp\test2.xml";
static void Main(string[] args)
{
XDocument doc1 = XDocument.Load(FILENAME1);
XElement root1 = (XElement)doc1.FirstNode;
XDocument doc2 = XDocument.Load(FILENAME2);
XElement root2 = (XElement)doc2.FirstNode;
root1.Add(root2.Elements());
}
}
}

Select InnerText of XML is decoding URL

My issue is, when selecting a node from xml file (packet in my case) is decoding an url that is the inner text of the node within the xml. Example
<url>"http://my.xml.org/?id=AAA%2DDDD%3dNNNLKLKJLKL%2"</url>
using an instance of XmlDocument:
xmlDoc.SelectSingleNode("url").InnerText;
The string that is returned is: "http://my.xml.org/?id=AAA/DDDD/NNNLKLKJLKL/"
How do I prevent this from happening? Notice that the %2 and %3's have been changed to forward slashes.

The code below gets correct results. What are you doing differently?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string xml =
"<?xml version=\"1.0\" encoding=\"utf-8\" ?>" +
"<url>\"http://my.xml.org/?id=AAA%2DDDD%3dNNNLKLKJLKL%2\"</url>";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
string results = xmlDoc.SelectSingleNode("url").InnerText;
}
}
}
​