I have to read element from Inbound Header...
I am assigning inbound header using WCF.InboundHeaders to a string....
now my problem is my inbounde header is looking like this
InboundHeaders
<headers><s:userid xmlns:s="http://www.w3.org/2003/05/soap-envelope">testuser</s:userid>
<s:applicationid xmlns:s="http://www.w3.org/2003/05/soap-envelope">assistworkerweb</s:applicationid>
<a:Action s:mustUnderstand="1" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">http://Request</a:Action><a:To s:mustUnderstand="1" xmlns:s="http://www.w3.org/2003/05/soap-envelope" xmlns:a="http://www.w3.org/2005/08/addressing">
Now i need to extract user id from it ..how to extract user id from it..
You haven't mentioned where or how your string is stored (that is populated with your WCF.InboundHeaders), however I would use a simple fragment of XPath to extract the UserId. If you were extracting this using a C# helper, you could do something along the lines of (note, this is untested, however its pretty much there):
XmlDocument doc = new XmlDocument();
doc.Load([WCF.InboundHeaders Xml Fragment]);
// Create an XmlNamespaceManager to add 'soap-envelope' namespace
XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);
nsmgr.AddNamespace("s", "http://www.w3.org/2003/05/soap-envelope");
// Select the UserId
XmlNode userId = doc.SelectSingleNode("/headers/s:userid", nsmgr);
Console.WriteLine(userId.InnerXml);
You may also want to serialize the Xml fragment into a .Net object and retrieve the UserId in that manner.
Related
How to parse the xml file?
<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<sitemap>
<loc>link</loc>
<lastmod>2011-08-17T08:23:17+00:00</lastmod>
</sitemap>
<sitemap>
<loc>link</loc>
<lastmod>2011-08-18T08:23:17+00:00</lastmod>
</sitemap>
</sitemapindex>
I am new to XML, I tried this, but it seems to be not working :
XmlDocument xml = new XmlDocument(); //* create an xml document object.
xml.Load("sitemap.xml");
XmlNodeList xnList = xml.SelectNodes("/sitemapindex/sitemap");
foreach (XmlNode xn in xnList)
{
String loc= xn["loc"].InnerText;
String lastmod= xn["lastmod"].InnerText;
}
The problem is that the sitemapindex element defines a default namespace. You need to specify the namespace when you select the nodes, otherwise it will not find them. For instance:
XmlDocument xml = new XmlDocument();
xml.Load("sitemap.xml");
XmlNamespaceManager manager = new XmlNamespaceManager(xml.NameTable);
manager.AddNamespace("s", "http://www.sitemaps.org/schemas/sitemap/0.9");
XmlNodeList xnList = xml.SelectNodes("/s:sitemapindex/s:sitemap", manager);
Normally speaking, when using the XmlNameSpaceManager, you could leave the prefix as an empty string to specify that you want that namespace to be the default namespace. So you would think you'd be able to do something like this:
// WON'T WORK
XmlDocument xml = new XmlDocument();
xml.Load("sitemap.xml");
XmlNamespaceManager manager = new XmlNamespaceManager(xml.NameTable);
manager.AddNamespace("", "http://www.sitemaps.org/schemas/sitemap/0.9"); //Empty prefix
XmlNodeList xnList = xml.SelectNodes("/sitemapindex/sitemap", manager); //No prefixes in XPath
However, if you try that code, you'll find that it won't find any matching nodes. The reason for this is that in XPath 1.0 (which is what XmlDocument implements), when no namespace is provided, it always uses the null namespace, not the default namespace. So, it doesn't matter if you specify a default namespace in the XmlNamespaceManager, it's not going to be used by XPath, anyway. To quote the relevant paragraph from the Official XPath Specification:
A QName in the node test is expanded into an expanded-name using the
namespace declarations from the expression context. This is the same
way expansion is done for element type names in start and end-tags
except that the default namespace declared with xmlns is not used: if
the QName does not have a prefix, then the namespace URI is null (this
is the same way attribute names are expanded). It is an error if the
QName has a prefix for which there is no namespace declaration in the
expression context.
Therefore, when the elements you are reading belong to a namespace, you can't avoid putting the namespace prefix in your XPath statements. However, if you don't want to bother putting the namespace URI in your code, you can just use the XmlDocument object to return the URI of the root element, which in this case, is what you want. For instance:
XmlDocument xml = new XmlDocument();
xml.Load("sitemap.xml");
XmlNamespaceManager manager = new XmlNamespaceManager(xml.NameTable);
manager.AddNamespace("s", xml.DocumentElement.NamespaceURI); //Using xml's properties instead of hard-coded URI
XmlNodeList xnList = xml.SelectNodes("/s:sitemapindex/s:sitemap", manager);
Sitemap has 2 sub nodes "loc" and "lastmod". The nodes that you are accessing are "name" and "url". that is why you are not getting any result. Also in your XML file the last sitemap tag is not closed properly with a corresponding Kindly try xn["loc"].InnerText and see if you get the desired result.
I would definitely use LINQ to XML instead of the older XmlDocument based XML API. You can accomplish what you are looking to do using the following code. Notice, I changed the name of the element that I am trying to get the value of to 'loc' and 'lastmod', because this is what is in your sample XML ('name' and 'url' did not exist):
XElement element = XElement.Parse(XMLFILE);
IEnumerable<XElement> list = element.Elements("sitemap");
foreach (XElement e in list)
{
String LOC= e.Element("loc").Value;
String LASTMOD = e.Element("lastmod").Value;
}
I am using asp.net VB and I have an XML file containing a set of data, I would like to use it in something like a datalist and where usually you would use a database i would like to use the XML file to produce the information.
Does anyone know how to do this, i have read about transform files but surely i will format the information in the control?
The file has multiple records so in some cases i would need to perform queries on the information through the datasource.
I would maybe look into XML serialization and de-serialization. Using de-serialization you could read your XML into a List(T) object containing a list of your own class objects and use that as a data source for your application.
Heres a link that you may find useful:
http://msdn.microsoft.com/en-us/library/ms731073.aspx
Hope this helps.
Dim ds As New DataSet()
ds.ReadXml(MapPath("data.xml"))
First you have to parse the XML and store that into custom C# object or you can directly pass the XML to your stored procedure and do the codding there for saving it into DB.
Passing the xml to stored procedure and manipulating it there is bit difficult so what I suggest is to parse it in C# and then get a custom object. Once you get it you can do whatever you want to.
Below is the sample code that parse a XML file and generate a custom C# object from it.
public CatSubCatList GenerateCategoryListFromProductFeedXML()
{
string path = System.Web.HttpContext.Current.Server.MapPath(_xmlFilePath);
XDocument xDoc = XDocument.Load(path);
XElement xElement = XElement.Parse(xDoc.ToString());
List<Category> lstCategory = xElement.Elements("Product").Select(d => new Category
{
Code = Convert.ToString(d.Element("CategoryCode").Value),
CategoryPath = d.Element("CategoryPath").Value,
Name = GetCateOrSubCategory(d.Element("CategoryPath").Value, 0), // Category
SubCategoryName = GetCateOrSubCategory(d.Element("CategoryPath").Value, 1) // Sub Category
}).GroupBy(x => new { x.Code, x.SubCategoryName }).Select(x => x.First()).ToList();
CatSubCatList catSubCatList = GetFinalCategoryListFromXML(lstCategory);
return catSubCatList;
}
I have data in XML format. I stored it in varchar datatype column. I have retrieved it by using Linq to sql in visual studio 2010. I got xml format data in string variable. now i need read it as a Xml. I need to take value in particular node.
for example,
<Sale>
<LTV>150</LTV>
<CLTV>350</CLTV>
<DLTV>600</DLTV>
</sale>
I NEED TO TAKE CLTV value.
This code should work for you:
using System.Xml;
...
string xmlStr = "<sale><LTV>150</LTV><CLTV>350</CLTV><DLTV>600</DLTV></sale>";
XmlDocument x = new XmlDocument();
x.LoadXml(xmlStr);
MessageBox.Show(x.GetElementsByTagName("CLTV")[0].InnerText);
var value = XDocument.parse("YOUR_XML_STRING").Root.Element("ELEMENT_NAME").Value;
try
var xml = XElement.Parse("your xml");
//Gives you the value of the CLTV node
xml.Descendants("CLTV").FirstOrDefault().Value;
To change the value
xml.Descendants("CLTV").FirstOrDefault().Value = "1";
//Save to disk
xml.Save({stream or file location});
//Get a string back
xml.ToString();
Descendants will give you a list of XElements that you can enumerate or by doing FirstOrDefault you will get the first one it finds or an empty Element.
Seems like this should be easy, but I'm not finding a simple configuration setting. Basically I have a page that will be parsing xml files that may have some comment tags in them. I'm loading it as an xml doc and looping through a particular node of the document and I'm running into problems because it's counting the comment as a child node. Any way to tell asp.net not to look at comments other than writing my own check for <!-- ?
If you use XmlNode, then that has a NodeType property. Ignore the nodes where that has a value of "Comment".
An XNode has the same property.
Use XmlReaderSettings.IgnoreComments:
XmlReaderSettings readerSettings = new XmlReaderSettings();
readerSettings.IgnoreComments = true;
using (XmlReader reader = XmlReader.Create("input.xml", readerSettings))
{
XmlDocument myData = new XmlDocument();
myData.Load(reader);
// etc...
}
I'm loading data into a DataSet from an XML file using the ReadXml method. This results in two tables with the same name. One of the tables has a namespace and the other doesn't. I'm trying to reference the table with the namespace. Can anyone tell me how to do this?
Dim reader As XmlTextReader = New XmlTextReader(strURL)
Dim city as string = ""
Dim ds As DataSet = New DataSet()
ds.Namespace = "HomeAddress"
ds.ReadXml(reader)
city = ds.Tables("Address").Rows(0).Item(2).ToString()
From MSDN: DataSet.Namespace
The Namespace property is used when
reading and writing an XML document
into the DataSet using the ReadXml,
WriteXml, ReadXmlSchema, or
WriteXmlSchema methods.
The namespace of an XML document is
used to scope XML attributes and
elements when read into a DataSet. For
example, if a DataSet contains a
schema that was read from a document
with the namespace "myCompany," and an
attempt is made to read data only from
a document with a different namespace,
any data that does not correspond to
the existing schema is ignored.
The following example sets the Prefix
before calling the ReadXml method.
private void ReadData(DataSet thisDataSet)
{
thisDataSet.Namespace = "CorporationA";
thisDataSet.Prefix = "DivisionA";
// Read schema and data.
string fileName = "CorporationA_Schema.xml";
thisDataSet.ReadXmlSchema(fileName);
fileName = "DivisionA_Report.xml";
thisDataSet.ReadXml(fileName);
}
I cant see from the example you gave, but unless you set your prefix before you load, you wont be able to read data that doesn't correspond to the existing schema.
I found the answer. You can pass in the namespace as the second parameter. I guess I didn't notice this particular overload in Intellisense.
ds.Tables("Address", "HomeAddress").Rows(1).Item(2).ToString()