I have below xml structure.
<Bd>
<Det AccNo="380619034" Zip="344000"></Det>
<Det AccNo="380619022" Zip="345000"></Det>
</Bd>
It's known that there are always 2 elements under <Bd> tag.
I am able to retrieve first element using below code;
string soapResult = rd.ReadToEnd();
var xdoc = XDocument.Parse(soapResult);
var y = xdoc.Descendants("Bd");
foreach (var x in y) {
var AccNo = x.Element("Bd")?.Element("Det")?.Attribute("AccNo")?.Value;
}
However this code is only giving me first element. I want to get the second element as well but not able to do so. What am i missing?
You can use Linq without loop, like the follwing code :
XDocument xDocument = XDocument.Parse(soapResult);
IEnumerable<string> accNoList = xDocument.Descendants("Bd")
.Descendants()
.Select(x => x.Attribute("AccNo").Value);
demo
Console.WriteLine(string.Join(", ", accNoList));
Outcome
"380619034, 380619022"
For your code, you can change it to:
var xdoc = XDocument.Parse(soapResult);
var y = xdoc.Descendants("Bd")
.Descendants();
foreach (var x in y)
{
var AccNo = x.Attribute("AccNo")?.Value;
Console.WriteLine(AccNo);
}
I hope this will help you out.
Related
i have a collection of service users, i want to iterate over ServiceUsers and extract value from ServiceUser, (ID, USER_NAME, UN_ID, IP, NAME)
<ServiceUsers xmlns="">
<ServiceUser>
<ID>280334</ID>
<USER_NAME>YVELAMGAMOIYENET12:206322102</USER_NAME>
<UN_ID>731937</UN_ID>
<IP>91.151.136.178</IP>
<NAME>?????????????????????: 123456</NAME>
</ServiceUser>
<ServiceUser>
<ID>266070</ID>
<USER_NAME>ACHIBALANCE:206322102</USER_NAME>
<UN_ID>731937</UN_ID>
<IP>185.139.56.37</IP>
<NAME>123456</NAME>
</ServiceUser>
</ServiceUsers>
my Code looks like this, but i am getting null point exception.
XDocument doc = XDocument.Parse(xml)
List<XElement> xElementList = doc.Element("ServiceUsers").Descendants().ToList();
foreach (XElement element in xElementList)
{
string TEST= element.Element("Name").Value;
comboBoxServiceUser.Items.Add(element.Element("Name").Value);
}
I used the example from XmlSerializer.Deserialize Method as the base for the following snippet that reads the provided xml.
var serializer = new XmlSerializer(typeof(ServiceUsers));
ServiceUsers i;
using (TextReader reader = new StringReader(xml))
{
i = (ServiceUsers)serializer.Deserialize(reader);
}
[XmlRoot(ElementName = "ServiceUsers")]
public class ServiceUsers : List<ServiceUser>
{
}
public class ServiceUser
{
[XmlElement(ElementName = "ID")]
public string Id {get; set;}
}
I think the basis of the problem is your trailing 's' to put it short, You iterate ServiceUser not ServiceUsers
Anyway this runs through fine:
[Fact]
public void CheckIteratorTest()
{
var a = Assembly.GetExecutingAssembly();
string[] resourceNames = a.GetManifestResourceNames();
string nameOf = resourceNames.FirstOrDefault(x => x.Contains("SomeXml"));
Assert.NotNull(nameOf);
using var stream = a.GetManifestResourceStream(nameOf);
Assert.NotNull(stream);
var reader = new StreamReader(stream, Encoding.UTF8);
var serialized = reader.ReadToEnd();
var doc = XDocument.Parse(serialized);
var elemList = doc.Root.Elements("ServiceUser").ToList();
Assert.NotEqual(0, elemList.Count);
foreach(var serviceUser in elemList)
{
System.Diagnostics.Debug.WriteLine($"Name : {serviceUser.Name ?? "n.a."}");
}
}
As being said: XML is case-sensitive. Next issue is .Descendants() returns all the descendant nodes, nested ones, etc, 12 nodes in this case. So NullPointerException will happen even if you fix a "typo".
Here is your fixed code:
XDocument doc = XDocument.Parse(xml);
var xElementList = doc
.Element("ServiceUsers") // picking needed root node from document
.Elements("ServiceUser") // picking exact ServiceUser nodes
.Elements("NAME") // picking actual NAME nodes
.ToList();
foreach (XElement element in xElementList)
{
var TEST = element.Value;
Console.WriteLine(TEST); // do what you were doing instead of console
}
Use doc.Element("ServiceUsers").Elements() to get the<ServiceUser> elements. Then you can loop over the child values of those in a nested loop.
var doc = XDocument.Parse(xml);
foreach (XElement serviceUser in doc.Element("ServiceUsers").Elements()) {
foreach (XElement element in serviceUser.Elements()) {
Console.WriteLine($"{element.Name} = {element.Value}");
}
Console.WriteLine("---");
}
Prints:
ID = 280334
USER_NAME = YVELAMGAMOIYENET12:206322102
UN_ID = 731937
IP = 91.151.136.178
NAME = ?????????????????????: 123456
---
ID = 266070
USER_NAME = ACHIBALANCE:206322102
UN_ID = 731937
IP = 185.139.56.37
NAME = 123456
---
Note: Elements() gets the (immediate) child elements where as Descendants() returns all descendants. Using Elements() gives you a better control and allows you to get the properties grouped by user.
You can also get a specific property like this serviceUser.Element("USER_NAME").Value. Note that the tag names are case sensitive!
So I'm working with reading an xml file to create a dictionary, but I can't figure out how to access the xml fields I want.
Below is the format of the XML I want to read.
<Days>
<Day Name="Monday">
<Task Order="1">TestTask</Task>
<Task Order="2">Test2</Task>
</Day>
</Days>
Below is my code so far. I've tried a lot of variations for finding task and order, such as for task: (string)e, or e.ToString(), or e.Elements("Task").Value.ToString(); And for order e.Attributes("Order").ToString();
string today = DateTime.Now.ToString("dddd");
var allItems = new Dictionary<string, int>();
XElement root = XElement.Parse(_orderxml);
IEnumerable<XElement> address =
from el in root.Elements("Day")
where el.Attribute("Name").Value == today
select el;
foreach (XElement e in address)
{
string task = ???;
string order = ???;
allItems.Add(task, (int)order);
}
So far, none of these have given me the right results, and I'm really unsure of what the proper way to get this data is, so any help would be appreciated!
Add a second loop to iterate the tasks and extract the values
static void Main()
{
string _orderxml = #"<Days> <Day Name=""Wednesday""> <Task Order=""1"">TestTask</Task> <Task Order=""2"">Test2</Task> </Day></Days>";
string today = DateTime.Now.ToString("dddd");
var allItems = new Dictionary<string, int>();
XElement root = XElement.Parse(_orderxml);
IEnumerable<XElement> address =
from el in root.Elements("Day")
where el.Attribute("Name").Value == today
select el;
foreach (XElement e in address)
{
foreach (XElement t in e.Descendants())
{
string task = t.Value.ToString();
int order = int.Parse(t.Attribute("Order").Value.ToString());
allItems.Add(task, (int)order);
}
}
}
Or you can do it with a Linq query like this
var result=root.Descendants("Day").Where(d=>d.Attribute("Name").Value==today).Descendants("Task").Select(x => new {Task=x.Value,Order=x.Attribute("Order") });
Or create a dictionary from the anonymous objects
var result = root.Descendants("Day").Where(d=>d.Attribute("Name").Value==today).Select(x => new { Task = x.Value.ToString(), Order = x.Attribute("Order") }).ToDictionary(c => c.Task, c => c.Order);
Or create a dictionary directly from the linq query
var result = root.Descendants("Day").Where(d=>d.Attribute("Name").Value==today).ToDictionary(c => c.Value.ToString(), c => int.Parse(c.Attribute("Order").Value.ToString()));
I have this XML file with keys and values, and I currently loop through the XML doc, and I read all the data.
However, I have certain 'keys' or 'Nodes' that have the same keyname, but different (or same) values.
I need to loop through these same nodes within the same parent node.
<tile>
<x>0</x>
<y>1</y>
<name>Grass</name>
<entity>Tree</entity>
<entity>Building</entity>
<entity>Something</entity>
</tile>
<tile>
<x>1</x>
<y>2</y>
<name>Dirt</name>
<entity>Tree</entity>
<entity>Building</entity>
</tile>
I need to get X, Y and the Name, and an array/list of the entity.
This I need for every Tile in the XML.
So I need to loop through all of the and get the contents, including a list with the
Current code:
XmlElement element = doc.DocumentElement;
XmlNodeList nList = element.SelectNodes("/map/tile");
foreach(XmlNode node in nList){
int x = int.Parse(node["x"].InnerText);
int y = int.Parse(node["y"].InnerText);
String materialName = node["name"].InnerText;
for(node["entity"] in allEntityNodesWithinThisTile){ }
}
Thanks
string xml = #"<tile>
<x>0</x>
<y>1</y>
<name>Grass</name>
<entity>Tree</entity>
<entity>Building</entity>
<entity>Something</entity>
</tile>";
var data = from t in XElement.Parse(xml).DescendantsAndSelf("tile")
select new {
X=(int)t.Element("x"),
Y=(int)t.Element("y"),
Name=(string)t.Element("name"),
Entities= t.Elements("entity").Select (x => x.Value)
};
var data = from t in XElement.Load(xmlFileName).DescendantsAndSelf("tile")
select new {
X=(int)t.Element("x"),
Y=(int)t.Element("y"),
Name=(string)t.Element("name"),
Entities= t.Elements("entity").Select (x => x.Value)
};
I am trying to read some values of specific elements in an XML document, such as the values of <main><alpha>, <main><beta><epsilon> and <main><gama><delta>.
<?xml version="1.0" ?>
<main>
<alpha>One</alpha>
<beta>
<delta>DeltaValueFromBeta</delta>
<epsilon>EpsilonValueFromBeta</epsilon>
<phi>PhiValueFromBeta</phi>
</beta>
<gamma>
<delta>DeltaValueFromGamma</delta>
<epsilon>EpsilonValueFromGamma</epsilon>
<phi>PhiValueFromGamma</phi>
</gamma>
</main>
I can get the values using code like this:
XDocument doc = XDocument.Load("Sample.xml");
var quiz = from elements in doc.Elements("main").Elements("beta").Elements("epsilon")
select elements;
foreach (var item in quiz)
{
string sValue = (string) item.Value;
textBox1.AppendText(sValue);
}
Is there a more direct way to select the element values I need, without having to use a foreach loop?
Thanks
Nick
XPath is another option for direct access to a node. This reference may assist you.
How to get values from an XML file matching XPath query in C#
Edit to add to text box without foreach where result = XPath query result collection:
textbox1.AppendText(result.Select(x => x.Value));
XPath allows for dynamic path building a little easier than LINQ queries.
You can do it in your linq query:
var quiz = (from elements in doc.Elements("main").Elements("beta").Elements("epsilon")
select (string)elements).ToList();
It will give you value list.And you can append your text without using foreach:
StringBuilder sb = new StringBuilder();
var values = quiz.Select(x => sb.Append(x));
textBox1.AppendText(sb.ToString());
Or better way:
var text = doc.Descendants("epsilon")
.Select(x => (string)x)
.Aggregate((x,y) => x + y);
textBox1.AppendText(text)
textBox1.AppendText(quiz.Select(x => x.Value).Aggregate((s, s1) => s + s1));
Use the following so you do not have to use a foreach:
IEnumerable<string> values = quiz.Select(x => x.Value);
Or all in one:
IEnumerable<string> values = doc.Elements("main").Elements("beta").Elements("epsilon").Select(x => x.Value);
textBox1.AppendText(values.Aggregate((i, j) => i + j));
I'm using this xml structure:
<park>
<car title="Ferrari" available="true">
<url>http://www.ferrari.com/</url>
</rss>
</park>
And this is my code in C#:
XmlDocument doc = new XmlDocument();
doc.Load("Settings.xml");
XmlNodeList list = doc.SelectNodes("/park/car");
foreach (XmlNode item in list)
{
string x = item["#title"].InnerText;
}
I just want to get "title" property but i can't get it working. I'm using "#" but without success.
Try this code:
string x = item.Attributes["title"].Value;
I suggest you to use LINQ to XML for parsing xml:
var xdoc = XDocument.Load("Settings.xml");
var titles = xdoc.XPathSelectElements("//park/car")
.Select(c => (string)c.Attribute("title"));
Or without XPath:
var titles = xdoc.Descendants("park")
.Elements("car")
.Select(c => (string)c.Attribute("title"));