I am going to read an xml file of a gps points to a list and later convert them to a polygon and save in database.
Here is my problem..When I try to read file every item in list is the same as others..can you help me with my problem?thanks in advanced
here is my code:
public List<string[]> loadXML(string xmlpath)
{
List<string[]> points = new List<string[]>();
XmlReader xmlReader = XmlReader.Create(xmlpath);
while (xmlReader.Read())
{
string[] item = new string[3];
if ((xmlReader.NodeType == XmlNodeType.Element) && (xmlReader.Name == "trkpt"))
{
if (xmlReader.HasAttributes)
{
item[0] = xmlReader.GetAttribute("lat");
item[1] = xmlReader.GetAttribute("lon");
}
}
if ((xmlReader.NodeType == XmlNodeType.Element) && (xmlReader.Name == "ele"))
{
item[2] = xmlReader.ReadInnerXml();
}
points.Add(item);
}
return points;
}
and here is a peice of my xml:
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<gpx xmlns="" xmlns:gpxx="" xmlns:wptx1="" xmlns:gpxtpx="" creator="GPSMAP 78s" version="1.1" xmlns:xsi="" xsi:schemaLocation="">
<metadata>
<link href=""><text>Garmin International</text></link>
<time>2014-06-18T13:55:07Z</time></metadata>
<trk><name>PV164B2KHE</name>
<extensions><gpxx:TrackExtension><gpxx:DisplayColor>Cyan</gpxx:DisplayColor></gpxx:TrackExtension></extensions>
<trkseg>
<trkpt lat="31.0403929744" lon="51.5264290944"><ele>2089.08</ele><time>2014-06-18T13:45:57Z</time></trkpt>
<trkpt lat="31.0403881129" lon="51.5264252387"><ele>2088.60</ele><time>2014-06-18T13:46:01Z</time></trkpt></trkseg></trk></gpx>
I want to extract lat,lon and ele for each point
I would use Linq to XML for that:
var xmlDocument = XDocument.Load("path");
XNamepsace ns = xmlDocument.Root.GetDefaultNamespace();
var values = xmlDocument.Root
.Descendants(ns + "trkpt")
.Select(x => new
{
lat = (string)x.Attribute("lat"),
lon = (string)x.Attribute("lon"),
ele = (string)x.Element(ns + "ele")
});
Your mistake is xmlReader.Read() reads the next node, but you are creating a string[] array for each node.A node can not be a trkpt and ele at the same time. So that will never give you the desired result.
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;
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.
How to convert a XML file to a CSV file in C#, showing only these Tags: <original-impot-no>, <price>, <Small-price>, <Big-price>?
sample XML code: it represents one line among several lines, and every line may contains several <product-lineitem>Tags
<?xml version="1.0" encoding="UTF-8"?>
<impots xmlns="http://www.google.com/xml/impot//20016-02-31">
<impot impot-no="W0110891258">
<impot-date>2017-12-10T22:33:35.000Z</impot-date>
<prop-by>Yallo</prop-by>
<original-impot-no>891258</original-impot-no>
<currency>EUR</currency>
<server-locale>Esp</server-locale>
<lax>gross</lax>
<current-impot-no>123358</current-impot-no>
<product-lineitems>
<product-lineitem>
<price>450</price>
<red>6.50</red>
<Small-price>39</Small-price>
<Big-price>3229</Big-price>
<lineitem-text>Grand create</lineitem-text>
<basis>234.00</basis>
</product-lineitem>
</product-lineitems>
<product-lineitem>
<price>432</price>
<red>12</red>
<Small-price>44</Small-price>
<Big-price>34</Big-price>
<lineitem-text>Small create</lineitem-text>
<basis>44.00</basis>
</product-lineitem>
</product-lineitems>
</impot>
</impots>
I should get someting like this in y CSV file:
891258;450;39;229
891258;432;44;34
the C# code:
the problem that Im facing with this code is that I can not retrieve the descandent of the TAG <impot>
XmlTextReader xtr = new XmlTextReader(#"C:\Temp_Convert\Impot.xml");
StringBuilder dataToBeWritten = new StringBuilder();
while (xtr.Read())
{
if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "original-impot-no")
{
string s1 = xtr.ReadElementString();
dataToBeWritten.Append(s1);
dataToBeWritten.Append(";");
}
else if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "price")
{
string s2 = xtr.ReadElementString();
dataToBeWritten.Append(s2);
dataToBeWritten.Append(";");
}
else if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "Small-price")
{
string s2 = xtr.ReadElementString();
dataToBeWritten.Append(s2);
dataToBeWritten.Append(";");
dataToBeWritten.Append(0);
dataToBeWritten.Append(Environment.NewLine);
}
else if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "Big-price")
{
string s2 = xtr.ReadElementString();
dataToBeWritten.Append(s2);
dataToBeWritten.Append(";");
dataToBeWritten.Append(0);
dataToBeWritten.Append(Environment.NewLine);
}
}
File.WriteAllText(#"C:\Temp_Convert\Impot.csv", dataToBeWritten.ToString());
}
Can somebody please propose a solution, thank you so much in advance.
You have an invalid XML. I guess here is the correct format.
<?xml version="1.0" encoding="UTF-8"?>
<impots xmlns="http://www.google.com/xml/impot//20016-02-31">
<impot impot-no="W0110891258">
<impot-date>2017-12-10T22:33:35.000Z</impot-date>
<prop-by>Yallo</prop-by>
<original-impot-no>891258</original-impot-no>
<currency>EUR</currency>
<server-locale>Esp</server-locale>
<lax>gross</lax>
<current-impot-no>123358</current-impot-no>
<product-lineitems>
<product-lineitem>
<price>450</price>
<red>6.50</red>
<Small-price>39.00</Small-price>
<Big-price>3229.00</Big-price>
<lineitem-text>Grand create</lineitem-text>
<basis>234.00</basis>
</product-lineitem>
</product-lineitems>
<product-lineitems>
<product-lineitem>
<price>432</price>
<red>12</red>
<Small-price>44.00</Small-price>
<Big-price>34.00</Big-price>
<lineitem-text>Small create</lineitem-text>
<basis>44.00</basis>
</product-lineitem>
</product-lineitems>
</impot>
</impots>
You couldn't retrieve the descendant because you are not including the namespace http://www.google.com/xml/impot//20016-02-31.
Here is how the code should be.
XNamespace ns = "http://www.google.com/xml/impot//20016-02-31";
var results = xDocument.Descendants(ns + "impot");
Then, you need to modify your query to retrieve elements that you need.
Here is the sample. I assume that product-lineitems only has one child product-lineitem.
var results = xDocument.Descendants(ns + "impot").Select(x => new {
ImpotNo = x.Attribute("impot-no")?.Value,
ProductLineItems = x.Descendants(ns + "product-lineitems").Select(y => new
{
Item = y.Descendants(ns + "product-lineitem").Select(z => new
{
Price = z.Element(ns + "price")?.Value,
SmallPrice = z.Element(ns + "Small-price")?.Value,
BigPrice = z.Element(ns + "Big-price")?.Value,
}).FirstOrDefault()
})
});
foreach (var result in results)
{
foreach (var productLine in result.ProductLineItems)
{
dataToBeWritten.Append(result.ImpotNo);
dataToBeWritten.Append(";");
dataToBeWritten.Append(productLine.Item.Price);
dataToBeWritten.Append(";");
dataToBeWritten.Append(productLine.Item.SmallPrice);
dataToBeWritten.Append(";");
dataToBeWritten.Append(productLine.Item.BigPrice);
dataToBeWritten.Append(";");
dataToBeWritten.Append(0);
dataToBeWritten.Append(Environment.NewLine);
}
}
Well, first I tried to reformat your XML to be a bit more readable but the tag structure still seems wrong...
<impots
xmlns="http://www.google.com/xml/impot//20016-02-31">
<impot impot-no="W0110891258">
<impot-date>2017-12-10T22:33:35.000Z</impot-date>
<prop-by>Yallo</prop-by>
<original-impot-no>891258</original-impot-no>
<currency>EUR</currency>
<server-locale>Esp</server-locale>
<lax>gross</lax>
<current-impot-no>123358</current-impot-no>
<product-lineitems>
<product-lineitem>
<price>450</price>
<red>6.50</red>
<Small-price>39.00</Small-price>
<Big-price>3229.00</Big-price>
<lineitem-text>Grand create</lineitem-text>
<basis>234.00</basis>
-
</product-lineitems>
-
</product-lineitem>
<product-lineitems>
<product-lineitem>
<price>432</price>
<red>12</red>
<Small-price>44.00</Small-price>
<Big-price>34.00</Big-price>
<lineitem-text>Small create</lineitem-text>
<basis>44.00</basis>
</product-lineitems>
</product-lineitem>
Nonetheless, I'm guessing this line is incorrect since "impot-no" is an attribute...
impot-no = (string)x.Element("impot impot-no")
Perhaps you meant that line to be...
impot-no = (string)x.Attribute("impot-no").Value
Going by memory -- hopefully that is the correct way to retrieve an attribute.
Review the following code. Note the use of SelectMany to get the impot items to construct the desired object models.
XNamespace ns = "http://www.google.com/xml/impot//20016-02-31";
var results = xDocument.Descendants(ns + "impot")
.SelectMany(impot => impot.Descendants(impot.Name.Namespace + "product-lineitem")
.Select(item => new {
ImpotNo = (string)impot.Element(impot.Name.Namespace + "original-impot-no"),
Price = (string)item.Element(item.Name.Namespace + "price"),
SmallPrice = (string)item.Element(item.Name.Namespace + "Small-price"),
BigPrice = (string)item.Element(item.Name.Namespace + "Big-price"),
})
).ToList();
for (int i = 0; i < results.Count; i++) {
dataToBeWritten.Append(results[i].ImpotNo);
dataToBeWritten.Append(";");
dataToBeWritten.Append(results[i].Price);
dataToBeWritten.Append(";");
dataToBeWritten.Append(results[i].SmallPrice);
dataToBeWritten.Append(";");
dataToBeWritten.Append(results[i].BigPrice);
dataToBeWritten.Append(";");
dataToBeWritten.Append(0);
dataToBeWritten.Append(Environment.NewLine);
}
Also note the syntax used for the properties.
Here is my xml code:
<?xml version="1.0" encoding="utf-8"?>
<updater>
<version>1.0.7</version>
<Enabled>true</Enabled>
<item>
<url>some url</url>
<name>file name</name>
</item>
<item>
<url>other url</url>
<name>other file name</name>
</item>
</updater>
how can i get the value of url and name inside of both item elements? The full code have 9 elements with the name item. Please make the solution fit with this code:
XmlTextReader reader = null;
try
{
string xmlURL = "someurl";
reader = new XmlTextReader(xmlURL);
reader.MoveToContent();
string elementName = "";
if ((reader.NodeType == XmlNodeType.Element) && (reader.Name == "updater"))
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element) elementName = reader.Name;
else
{
if ((reader.NodeType == XmlNodeType.Text) && (reader.HasValue))
{
switch (elementName)
{
case "url":
if (nummer >= urls.Length)
Array.Resize(ref urls, urls.Length + 1);
urls[nummer] = reader.Value.ToString();
MessageBox.Show(urls[nummer]);
break;
case "name":
if (nummer >= names.Length)
Array.Resize(ref names, names.Length + 1);
names[nummer] = reader.Value.ToString();
MessageBox.Show(names[nummer]);
break;
}
nummer++;
}
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
Any help will be appreciated. thanks in advance.
PS. If i'm unclear somewhere, or if you need more information then just explain what's needed.
You can use LINQ to XML:
var xdoc = XDocument.Load(path_to_xml);
var items = from i in xdoc.Root.Elements("item")
select new {
Url = (string)i.Element("url"),
Name = (string)i.Element("name")
};
This will give list of anonymous objects corresponding to your item elements. Each object will have strongly-typed properties for url and name:
foreach(var item in items)
{
// use item.Url or item.Name
}
XDocument doc = XDocument.Load("Xml.xml");
IEnumerable<XElement> items = doc.Descendants("updater").Elements("item")
.Select(x => new { Url = x.Element("url").Value,
Name = x.Element("name").Value });
I want to get all text nodes from an XML file.
How can I do this?
Example Input:
<root>
<slide>
<Image>hi</Image>
<ImageContent>this</ImageContent>
<Thumbnail>is</Thumbnail>
<ThumbnailContent>A</ThumbnailContent>
</slide>
</root>
Expected Output:
hi this is A
The only solution (so far) to enumerate all text nodes in any xml, regardless of its structure:
string input = #"
<root>
<slide>
<Image>hi</Image>
<ImageContent>this</ImageContent>
<Thumbnail>is</Thumbnail>
<ThumbnailContent>A</ThumbnailContent>
</slide>
</root>";
foreach (XText text in (IEnumerable)XDocument.Parse(input).XPathEvaluate("//*/text()"))
{
Console.WriteLine(text.Value);
}
EDIT: if you want to load xml from file then use XDocument.Load instead.
This code will print the inner text of all xml nodes which doesnt have a child:
static void Main(string[] args)
{
XmlDocument x = new XmlDocument();
x.Load("exp.xml");
PrintNode(x.DocumentElement);
}
private static void PrintNode(XmlNode x)
{
if (!x.HasChildNodes)
Console.Write(string.Format("{0} ", x.InnerText));
for (int i = 0; i < x.ChildNodes.Count; i++)
{
PrintNode(x.ChildNodes[i]);
}
}
On your example XML it will result in the output you want :)
You can try this:
string input = #"
<root>
<slide>
<Image>hi</Image>
<ImageContent>this</ImageContent>
<Thumbnail>is</Thumbnail>
<ThumbnailContent>A</ThumbnailContent>
</slide>
</root>";
XDocument doc = XDocument.Parse(input);
//You can also load data from file by passing file path to Load method
//XDocument doc = XDocument.Load("Data.xml");
foreach(var slide in doc.Root.Elements("slide"))
{
var words = slide.Elements().Select(el => el.Value);
string s = String.Join(" ", words.ToArray());
}
This will work
static void Main(string[] args)
{
XDocument xmlSkuDescDoc = XDocument.Parse
(#"<root>
<slide>
<Image>hi</Image>
<ImageContent>this</ImageContent>
<Thumbnail>is</Thumbnail>
<ThumbnailContent>A</ThumbnailContent>
</slide>
</root> "
);
var result = (from data in xmlSkuDescDoc.Descendants("slide")
select data).Elements().Select(i => i.Value).Aggregate((a, b) => a + " " + b);
Console.ReadKey();
}
N.B.~ use XDocument.Load(filename) if loading from file
e.g.
string fileName = #"D:\MyXml.xml";
XDocument xmlSkuDescDoc = XDocument.Load(filename);
.... and the rest follows as shown above
It can be done using XDocument class (LINQ to XML). Assuming that you have exactly one slide element:
Using plain XDocument navigation:
var doc = XDocument.Load("file path here");
if (doc.Root == null)
throw new ArgumentException(); // No root node!
var slideElement = doc.Root.Element("slide");
if (slideElement == null)
throw new ArgumentException(); // No slide node!
var values = string.Join(" ", slideElement.Elements().Select(element => element.Value));
Using XPath node selection:
var doc = XDocument.Load("file path here");
var slideElements = doc.XPathSelectElements("root/slide/*");
var values = string.Join(" ", slideElements.Select(element => element.Value));