This is a portion of XML I'm trying to parse
<BRTHDATES>
<BRTHDATE value="5/1/1963" code="B"/>
</BRTHDATES>
var birthdates = xmlDoc.XPathSelectElements("/INDV/PERSON/BRTHDATES").Elements().Where(e => e.Name == "BRTHDATE");
xe = birthdates.Elements().Where(e => e.Name == "BRTHDATE");
bbs = from b in birthdates
select new
{
Birthdays = b.FirstAttribute.Value,
Code = b?.Value
};
var status = birthdates.Elements().Where(e => e.Name.LocalName == "BRTHDATE").Single().Value;
When I try to get "Value" from the Element I get an empty string. I can't get anything for the "code" attribute.
It sure seems like this should be a lot easier...
You can try below code. I've already tested through a test project and got the require value.
string personBirthday = string.Empty;
string soapResult = #"<?xml version=""1.0"" encoding=""utf - 8"" ?><INDV> <PERSON> <BRTHDATES><BRTHDATE value = ""5/1/1963"" code = ""B"" /> </BRTHDATES></PERSON></INDV> ";
XmlDocument doc = new XmlDocument();
doc.Load(new StringReader(soapResult));
XmlNodeList person = doc.GetElementsByTagName("BRTHDATES");
if (person[0].ChildNodes.Count > 0)
{
foreach (XmlNode item in person[0].ChildNodes)
{
if (item.Name.Trim().Equals("BRTHDATE"))
{
personBirthday = !string.IsNullOrEmpty(item.Attributes[0].Value) ? item.Attributes[0].Value.Trim() : string.Empty;
}
}
}
Here is the solution
You can select specific Element from a Xml. Just try below sample code
XmlNodeList generalTabNodeList = xmlDocument.SelectNodes("/INDV/PERSON/BRTHDATES");
foreach (XmlNode node in generalTabNodeList)
{
if (node.ChildNodes.Count > 0)
{
string birthdate = !string.IsNullOrEmpty(node.ChildNodes[0].ToString()) ? node.ChildNodes[2].InnerText.ToString() : string.Empty;
}
}
I can't quite follow what you are trying to do, but, this should get you going:
For an XML file that looks like this:
<?xml version="1.0" encoding="utf-8" ?>
<INDV>
<PERSON>
<BRTHDATES>
<BRTHDATE value="5/1/1963" code="B"/>
</BRTHDATES>
</PERSON>
</INDV>
(Note, this is an entire XML document - one that matches your code, not just the snippet you provided (that doesn't match your code))
This code will pick out the value and code attributes:
using (var xmlStream = new FileStream("Test.xml", FileMode.Open))
{
XDocument xmlDocument = XDocument.Load(xmlStream);
var birthDateElements = xmlDocument.XPathSelectElements("/INDV/PERSON/BRTHDATES/BRTHDATE");
var birthDateElement = birthDateElements.FirstOrDefault();
if (birthDateElement != null)
{
var attributes = birthDateElement.Attributes();
var valueAttribute = attributes.Where(a => a.Name == "value");
var codeAttribute = attributes.Where(a => a.Name == "code");
}
}
You can play around with this code to figure out what you want to do. Whatever you do, don't pick out attributes by position, pick them out by name.
Related
I need to parse xml but my code just parses one title not all.
How can I parse part ?
This is my code:
CustomResponse itemCustom = new CustomResponse ();
XDocument response = XDocument.Parse(responseXml);
XElement rootElement = response.Root;
foreach (XElement sellResponse in rootElement.Elements())
{
itemCustom .ErrorCode = sellResponse.Element("ErrorCode").Value;
itemCustom .ErrorMessage = sellResponse.Element("ErrorMessage").Value;
itemCustom .CustomerID= sellResponse.Element("CustomerID").Value;
itemCustom .CustomerType= sellResponse.Element("CustomerType").Value;
}
This is my xml:
<?xml version="1.0" encoding="utf-8"?>
<TINS_XML_DATA>
<Header>
<ErrorCode>WAATS</ErrorCode>
<ErrorMessage>UTL</ErrorMessage>
</Header>
<Customer>
<CustomerID>UTL11111111111111111111</CustomerID>
<CustomerType>NSell</CustomerType>
</Customer>
</TINS_XML_DATA>
Try something like this:
foreach (XElement sellResponse in rootElement.Elements())
{
if (sellResponse.Name == "Header")
{
itemCustom.ErrorCode = sellResponse.Element("ErrorCode").Value;
itemCustom.ErrorMessage = sellResponse.Element("ErrorMessage").Value;
}
else if (sellResponse.Name == "Customer")
{
itemCustom.CustomerID = sellResponse.Element("CustomerID").Value;
itemCustom.CustomerType = sellResponse.Element("CustomerType").Value;
}
}
Update: You could also use XPath to find required elements as like below:
var xDoc = new XmlDocument();
xDoc.LoadXml(xml);
var errorMessage = xDoc.SelectNodes("//ErrorMessage")[0].InnerText;
This is my solved:
var xDoc = new XmlDocument();
xDoc.LoadXml(responseXml);
itemSell.ErrorCode = xDoc.SelectNodes("//ErrorCode")[0].InnerText;
itemSell.ErrorMessage = xDoc.SelectNodes("//ErrorMessage")[0].InnerText;
itemSell.CustomerID= xDoc.SelectNodes("//CustomerID")[0].InnerText;
I have created a XML string and Looping that to get value. But its not entering in foreach loop. But in my other code same loop code is working.
my code is :
XML string:
<SuggestedReadings>
<Suggestion Text="Customer Centricity" Link="http://wdp.wharton.upenn.edu/book/customer-centricity/?utm_source=Coursera&utm_medium=Web&utm_campaign=custcent" SuggBy="Pete Fader�s" />
<Suggestion Text="Global Brand Power" Link="http://wdp.wharton.upenn.edu/books/global-brand-power/?utm_source=Coursera&utm_medium=Web&utm_campaign=glbrpower" SuggBy="Barbara Kahn�s" />
</SuggestedReadings>
Code Is:
string str = CD.SRList.Replace("&", "&");
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(str);
XmlNode SuggestionListNode = xmlDoc.SelectSingleNode("/SuggestedReadings/Suggestion");
foreach (XmlNode node in SuggestionListNode)
{
COURSESUGGESTEDREADING CSR = new COURSESUGGESTEDREADING();
var s = db.COURSESUGGESTEDREADINGS.OrderByDescending(o => o.SRID);
CSR.SRID = (s == null ? 0 : s.FirstOrDefault().SRID) + 1;
CSR.COURSEID = LibId;
CSR.TEXT = node.Attributes.GetNamedItem("Text").Value;
CSR.LINK = node.Attributes.GetNamedItem("Link").Value; ;
CSR.SUGBY = node.Attributes.GetNamedItem("SuggBy").Value; ;
CSR.ACTIVEFLAG = "Y";
CSR.CREATEDBY = CD.CreatedBy;
CSR.CREATEDDATE = DateTime.Now;
db.COURSESUGGESTEDREADINGS.Add(CSR);
}
You should use SelectNodes, not SelectSingleNode, since you are trying to get multiple rows out of the XML document.
Use this:
XmlNodeList SuggestionListNode = xmlDoc.SelectNodes("//Suggestion");
foreach (XmlNode node in SuggestionListNode)
{
}
You can try this.
XDocument xdoc = XDocument.Load("data.xml");
var xmlData = from lv1 in xdoc.Descendants("Suggestion")
select new {
Text = lv1.Attribute("Text").Value,
Link = lv1.Attribute("Link").Value,
SuggBy = lv1.Attribute("SuggBy").Value
};
foreach (var item in xmlData){
// your logic here
}
I write console application program
this is my xml file:
<?xml version="1.0" encoding="utf-8" ?>
<Settings>
<AsteriskHost type="string">172.16.18.14</AsteriskHost>
</Settings>
I run this code
public void Set(List<AcmSettings> acmSettings)
{
XElement xelement = XElement.Load("Settings.xml");
IEnumerable<XElement> settings = xelement.Elements();
foreach (var item in acmSettings)
{
settings.FirstOrDefault(x => x.Name == item.Name).SetValue("treeee");
}
xelement.Save("Settings.xml");
}
this my test:
[Test]
public void SetShouldUpdateValue()
{
var settingsManager = new SettingsManager();
const string newIp = "165.166.167.167";
const string elemntName = "AsteriskHost";
var acmSetting = new List<AcmSettings> { new AcmSettings { Name = elemntName, Value = newIp } };
settingsManager.Set(acmSetting);
var setting = settingsManager.Get(x => x.Name == elemntName).FirstOrDefault();
Assert.IsTrue(setting != null);
Assert.IsTrue(setting.Value== newIp);
}
I don't have any error but my new value not save in file.
How can I update xml node in c#
I tried your Set method, and it runs ok for me. I did have to tweak your current implementation by changing just one line:
// settings.FirstOrDefault(x => x.Name == item.Name).SetValue("treeee");
settings.FirstOrDefault(x => x.Name == item.Name).SetValue(item.Value);
Perhaps the problem is with your Get method. Here is a quick (not production quality) Get implementation. Using this implementation, your unit test runs successfully.
// note - just a string (name) passed in
public XElement Get(string name)
{
XElement xelement = XElement.Load("Settings.xml");
IEnumerable<XElement> settings = xelement.Elements();
return settings.FirstOrDefault(x => x.Name == name);
}
The other possibility is that, as suggested in the comments above, is that you are looking at your project XML file, and not looking at the output XML file.
Try like this
XmlDocument xmlDom = new XmlDocument();
xmlDom.Load("YourXMLFILEPATH.xml");
XmlNode newXMLNode = xmlDom.SelectSingleNode("/Settings/AsteriskHost");
newXMLNode.InnerText = YourValue;
xmlDom.Save("YourXMLFILEPATH.xml");
Console.WriteLine(xmlDom);
Have you tried this ?
You can modify your set method like this.
public void Set(List<AcmSettings> acmSettings)
{
XElement xelement = XElement.Load("Settings.xml");
IEnumerable<XElement> settings = xelement.Elements();
foreach (var item in acmSettings)
{
xelement.Descendants(item.Name).FirstOrDefault().Value = item.Value;
}
xelement.Save("Settings.xml");
}
How I can make following query
If I have XmlDocument and it may have following xml
<EquipmentParameterModified dateTime="2011-04-06T12:03:10.00+01:00" parameter="ExtApp">
<Extensions ParameterId="External App Interface" FromParameterValue="" ToParameterValue="DISABLED"/>
</EquipmentParameterModified>
How I can check that I have EquipmentParameterModified and take values of ParameterId and ToParameterValue
Thanks for help.
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(new StringReader(xmlstr));
XmlNode node = xmldoc.GetElementsByTagName("Extensions").Item(0);
string id = node.Attributes["ParameterId"].Value;
string val = node.Attributes["ToParameterValue"].Value;
Are you trying to find the element given the 2 input search values? What do you want your output to be? If you just want to see that you have a matching element, this code should do the trick:
If yes, try something like this:
public static void Main()
{
var paramId = "External App Interface";
var toParameterValue = "DISABLED";
var xdoc = XDocument.Parse(#"
<EquipmentParameterModified dateTime='2011-04-06T12:03:10.00+01:00' parameter='ExtApp'>
<Extensions ParameterId='External App Interface' FromParameterValue='' ToParameterValue='DISABLED'/>
</EquipmentParameterModified>");
var ret = xdoc.Root
.Elements("Extensions")
.Where(e => e.Attribute("ParameterId").Value == paramId &&
e.Attribute("ToParameterValue").Value == toParameterValue)
.FirstOrDefault();
if (ret != null)
Console.WriteLine(ret.Name);
}
Update for .NET 2.0 & XmlDocument:
public static void Main()
{
var paramId = "External App Interface";
var toParameterValue = "DISABLED";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(#"
<EquipmentParameterModified dateTime='2011-04-06T12:03:10.00+01:00' parameter='ExtApp'>
<Extensions ParameterId='External App Interface' FromParameterValue='' ToParameterValue='DISABLED'/>
</EquipmentParameterModified>");
XmlNode node = xmlDoc.GetElementsByTagName("Extensions")[0];
if (node.Attributes["ParameterId"].Value == paramId &&
node.Attributes["ToParameterValue"].Value == toParameterValue)
{
Console.WriteLine("Found matching node:" + node.Name);
return;
}
}
I recommend using XPath to get the element you're aiming for, do a null check, then get specific attributes of that element, doing a null check on the attribute value before calling the .Value property.
Is there a simple way, to get all nodes from an xml document? I need every single node, childnode and so on, to check if they have certain attributes.
Or will I have to crawl through the document, asking for childnodes?
In LINQ to XML it's extremely easy:
XDocument doc = XDocument.Load("test.xml"); // Or whatever
var allElements = doc.Descendants();
So to find all elements with a particular attribute, for example:
var matchingElements = doc.Descendants()
.Where(x => x.Attribute("foo") != null);
That's assuming you wanted all elements. If you want all nodes (including text nodes etc, but not including attributes as separate nodes) you'd use DescendantNodes() instead.
EDIT: Namespaces in LINQ to XML are nice. You'd use:
var matchingElements = doc.Descendants()
.Where(x => x.Attribute(XNamespace.Xmlns + "aml") != null);
or for a different namespace:
XNamespace ns = "http://some.namespace.uri";
var matchingElements = doc.Descendants()
.Where(x => x.Attribute(ns + "foo") != null);
see here: Iterating through all nodes in XML file
shortly:
string xml = #"
<parent>
<child>
<nested />
</child>
<child>
<other>
</other>
</child>
</parent>
";
XmlReader rdr = XmlReader.Create(new System.IO.StringReader(xml));
while (rdr.Read())
{
if (rdr.NodeType == XmlNodeType.Element)
{
Console.WriteLine(rdr.LocalName);
}
}
In my opinion the simplest solution is using XPath. Also this works if you have .NET 2:
var testDoc = new XmlDocument();
testDoc.LoadXml(str);
var tmp = testDoc.SelectNodes("//*"); // match every element
XDocument.Descendants will return you all the nodes in a flat enumerable.
Check out LINQ to XML. That does what you need.
http://www.hookedonlinq.com/LINQtoXML5MinuteOverview.ashx
You can use the SelectMany extension for example.
But if you want to check the values you can just use LINQ to create where-statements.
public void AddWithChildren(XmlNode xnod, Int32 intLevel) //,XmlDocument xmlDoc
{
List<IEnumerable> item = new List<IEnumerable>();
XmlNode xnodWorking;
String strIndent = new string('-', 2 * intLevel);
String strIndent1 = new string('#', 2 * intLevel);
if (xnod.NodeType == XmlNodeType.Element)
{
item.Add(new ListXML(strIndent + xnod.Name, strIndent + xnod.Name, ""));
XmlNamedNodeMap mapAttributes = xnod.Attributes;
foreach (XmlNode xnodAttribute in mapAttributes)
{
item.Add(new ListXML(strIndent1 + xnodAttribute.Name, strIndent1 + xnodAttribute.Name, ""));
}
if (xnod.HasChildNodes)
{
xnodWorking = xnod.FirstChild;
while (xnodWorking != null)
{
AddWithChildren(xnodWorking, intLevel + 1);
xnodWorking = xnodWorking.NextSibling;
}
}
}
}
protected void Page_Load(object sender, EventArgs e)
{
XmlDocument document = new XmlDocument();
string xmlStr;
using (var wc = new WebClient())
{
xmlStr = wc.DownloadString("test.xml");
}
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xmlStr);
XmlNode xnod = xmlDoc.DocumentElement;
AddWithChildren(xnod, 1);
}
string AttrNameerr = "err";//find error code in xml
XmlReader rdr = XmlReader.Create(new stem.IO.StringReader(somesXMLtring));//somesXMLtring is xml in string variable we want to find attribute in.
while (rdr.Read())
{
if (rdr.NodeType == XmlNodeType.Element)
{
//Found the new element, now check if the required attribute is present or not. if not, ignore, if yes then display the same
string val = rdr.GetAttribute(AttrNameerr);//AttrNameerr is name of attribute we need to get value of which. here we are searching for error code stored as value of 'err' attribute
if (val != null)
textBox.Text = strResult = "error = " + rdr.GetAttribute(AttrNameerr);
}
}