How to parse XML with namespace using XmlDocument
Question
I run this code https://gist.github.com/ccumaya/10b1a58efe06c1f8080045457c5cf4b8 on https://dotnetfiddle.net/ (the site can't get the link now, so I use gist.)
My purpose is to get the GPS points in the XML file, but the XPath
'/gpx/trk/trkseg/trkpt'
does not work. I don't know where it goes wrong, but I'm using XPath
'//*'
and get 1439 results. I need help, thanks for your guide.
The xml structure is below.
<gpx xmlns="http://www.topografix.com/GPX/1/1" xmlns:gpxx="http://www.garmin.com/xmlschemas/GpxExtensions/v3" xmlns:gpxtrkx="http://www.garmin.com/xmlschemas/TrackStatsExtension/v1" xmlns:wptx1="http://www.garmin.com/xmlschemas/WaypointExtension/v1" xmlns:gpxtpx="http://www.garmin.com/xmlschemas/TrackPointExtension/v1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" creator="GPSMAP 64ST TWN" version="1.1" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/GpxExtensions/v3 http://www8.garmin.com/xmlschemas/GpxExtensionsv3.xsd http://www.garmin.com/xmlschemas/TrackStatsExtension/v1 http://www8.garmin.com/xmlschemas/TrackStatsExtension.xsd http://www.garmin.com/xmlschemas/WaypointExtension/v1 http://www8.garmin.com/xmlschemas/WaypointExtensionv1.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v1 http://www.garmin.com/xmlschemas/TrackPointExtensionv1.xsd">
<metadata>
<link href="http://www.garmin.com">
<text>Garmin International</text>
</link>
<time>2018-10-05T09:21:31Z</time>
</metadata>
<trk>
<name>2018-10-05 17:21:26</name>
<extensions>
<gpxx:TrackExtension>
<gpxx:DisplayColor>Cyan</gpxx:DisplayColor>
</gpxx:TrackExtension>
<gpxtrkx:TrackStatsExtension>
<gpxtrkx:Distance>1033</gpxtrkx:Distance>
<gpxtrkx:TotalElapsedTime>996</gpxtrkx:TotalElapsedTime>
<gpxtrkx:MovingTime>870</gpxtrkx:MovingTime>
<gpxtrkx:StoppedTime>86</gpxtrkx:StoppedTime>
<gpxtrkx:MovingSpeed>1</gpxtrkx:MovingSpeed>
<gpxtrkx:MaxSpeed>2</gpxtrkx:MaxSpeed>
<gpxtrkx:MaxElevation>207</gpxtrkx:MaxElevation>
<gpxtrkx:MinElevation>189</gpxtrkx:MinElevation>
<gpxtrkx:Ascent>17</gpxtrkx:Ascent>
<gpxtrkx:Descent>5</gpxtrkx:Descent>
<gpxtrkx:AvgAscentRate>0</gpxtrkx:AvgAscentRate>
<gpxtrkx:MaxAscentRate>0</gpxtrkx:MaxAscentRate>
<gpxtrkx:AvgDescentRate>0</gpxtrkx:AvgDescentRate>
<gpxtrkx:MaxDescentRate>-0</gpxtrkx:MaxDescentRate>
</gpxtrkx:TrackStatsExtension>
</extensions>
<trkseg>
<trkpt lat="25.0312615000" lon="121.3505846635">
<ele>189.04</ele>
<time>2018-10-05T09:04:55Z</time>
</trkpt>
<trkpt lat="25.0312520284" lon="121.3505897764">
<ele>189.04</ele>
<time>2018-10-05T09:04:57Z</time>
</trkpt>
<trkpt lat="25.0312457420" lon="121.3506018464">
<ele>196.43</ele>
<time>2018-10-05T09:04:59Z</time>
</trkpt>
<trkpt lat="25.0312426407" lon="121.3506035227">
<ele>196.42</ele>
<time>2018-10-05T09:05:01Z</time>
</trkpt>
</trkseg>
</trk>
</gpx>
thanks for your help
4 answers
solution1
0 2018-10-13 08:14:18
When you have a lot of xml elements to parse and there is a schema available it is best to deserialize to parse data in most cases.
So I went to the schema website in your xml ( http://www.topografix.com/GPX/1/1 ) and create the schema below by pasting the sections together with some addition editing to the header to get correct results. Most cases the websites have a complete schema. This site doesn't.
<?xml version="1.0" encoding="utf-8"?>
<xsd:schema id="XMLSchema1"
targetNamespace="http://www.topografix.com/GPX/1/1"
elementFormDefault="qualified"
xmlns="http://www.topografix.com/GPX/1/1"
xmlns:xml="http://www.w3.org/XML/1998/namespace"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="gpx" type="gpxType"/>
<xsd:complexType name="metadataType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="name" type="xsd:string" minOccurs="0"/>
<xsd:element name="desc" type="xsd:string" minOccurs="0"/>
<xsd:element name="author" type="personType" minOccurs="0"/>
<xsd:element name="copyright" type="copyrightType" minOccurs="0"/>
<xsd:element name="link" type="linkType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="time" type="xsd:dateTime" minOccurs="0"/>
<xsd:element name="keywords" type="xsd:string" minOccurs="0"/>
<xsd:element name="bounds" type="boundsType" minOccurs="0"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="gpxType">
<xsd:sequence>
<xsd:element name="metadata" type="metadataType" minOccurs="0"/>
<xsd:element name="wpt" type="wptType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="rte" type="rteType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="trk" type="trkType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="version" type="xsd:string" use="required" fixed="1.1"/>
<xsd:attribute name="creator" type="xsd:string" use="required"/>
</xsd:complexType>
<xsd:complexType name="wptType">
<xsd:sequence>
<!-- elements must appear in this order -->
<!-- Position info -->
<xsd:element name="ele" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="time" type="xsd:dateTime" minOccurs="0"/>
<xsd:element name="magvar" type="degreesType" minOccurs="0"/>
<xsd:element name="geoidheight" type="xsd:decimal" minOccurs="0"/>
<!-- Description info -->
<xsd:element name="name" type="xsd:string" minOccurs="0"/>
<xsd:element name="cmt" type="xsd:string" minOccurs="0"/>
<xsd:element name="desc" type="xsd:string" minOccurs="0"/>
<xsd:element name="src" type="xsd:string" minOccurs="0"/>
<xsd:element name="link" type="linkType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="sym" type="xsd:string" minOccurs="0"/>
<xsd:element name="type" type="xsd:string" minOccurs="0"/>
<!-- Accuracy info -->
<xsd:element name="fix" type="fixType" minOccurs="0"/>
<xsd:element name="sat" type="xsd:nonNegativeInteger" minOccurs="0"/>
<xsd:element name="hdop" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="vdop" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="pdop" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="ageofdgpsdata" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="dgpsid" type="dgpsStationType" minOccurs="0"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="lat" type="latitudeType" use="required"/>
<xsd:attribute name="lon" type="longitudeType" use="required"/>
</xsd:complexType>
<xsd:complexType name="rteType">
<xsd:sequence>
<xsd:element name="name" type="xsd:string" minOccurs="0"/>
<xsd:element name="cmt" type="xsd:string" minOccurs="0"/>
<xsd:element name="desc" type="xsd:string" minOccurs="0"/>
<xsd:element name="src" type="xsd:string" minOccurs="0"/>
<xsd:element name="link" type="linkType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="number" type="xsd:nonNegativeInteger" minOccurs="0"/>
<xsd:element name="type" type="xsd:string" minOccurs="0"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
<xsd:element name="rtept" type="wptType" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="trkType">
<xsd:sequence>
<xsd:element name="name" type="xsd:string" minOccurs="0"/>
<xsd:element name="cmt" type="xsd:string" minOccurs="0"/>
<xsd:element name="desc" type="xsd:string" minOccurs="0"/>
<xsd:element name="src" type="xsd:string" minOccurs="0"/>
<xsd:element name="link" type="linkType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="number" type="xsd:nonNegativeInteger" minOccurs="0"/>
<xsd:element name="type" type="xsd:string" minOccurs="0"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
<xsd:element name="trkseg" type="trksegType" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="extensionsType">
<xsd:sequence>
<xsd:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="trksegType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="trkpt" type="wptType" minOccurs="0" maxOccurs="unbounded"/>
<xsd:element name="extensions" type="extensionsType" minOccurs="0"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="copyrightType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="year" type="xsd:gYear" minOccurs="0"/>
<xsd:element name="license" type="xsd:anyURI" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="author" type="xsd:string" use="required"/>
</xsd:complexType>
<xsd:complexType name="linkType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="text" type="xsd:string" minOccurs="0"/>
<xsd:element name="type" type="xsd:string" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="href" type="xsd:anyURI" use="required"/>
</xsd:complexType>
<xsd:complexType name="emailType">
<xsd:attribute name="id" type="xsd:string" use="required"/>
<xsd:attribute name="domain" type="xsd:string" use="required"/>
</xsd:complexType>
<xsd:complexType name="personType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="name" type="xsd:string" minOccurs="0"/>
<xsd:element name="email" type="emailType" minOccurs="0"/>
<xsd:element name="link" type="linkType" minOccurs="0"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="ptType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="ele" type="xsd:decimal" minOccurs="0"/>
<xsd:element name="time" type="xsd:dateTime" minOccurs="0"/>
</xsd:sequence>
<xsd:attribute name="lat" type="latitudeType" use="required"/>
<xsd:attribute name="lon" type="longitudeType" use="required"/>
</xsd:complexType>
<xsd:complexType name="ptsegType">
<xsd:sequence>
<!-- elements must appear in this order -->
<xsd:element name="pt" type="ptType" minOccurs="0" maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="boundsType">
<xsd:attribute name="minlat" type="latitudeType" use="required"/>
<xsd:attribute name="minlon" type="longitudeType" use="required"/>
<xsd:attribute name="maxlat" type="latitudeType" use="required"/>
<xsd:attribute name="maxlon" type="longitudeType" use="required"/>
</xsd:complexType>
<xsd:simpleType name="latitudeType">
<xsd:restriction base="xsd:decimal">
<xsd:minInclusive value="-90.0"/>
<xsd:maxInclusive value="90.0"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="longitudeType">
<xsd:restriction base="xsd:decimal">
<xsd:minInclusive value="-180.0"/>
<xsd:maxExclusive value="180.0"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="degreesType">
<xsd:restriction base="xsd:decimal">
<xsd:minInclusive value="0.0"/>
<xsd:maxExclusive value="360.0"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="fixType">
<xsd:restriction base="xsd:string">
<xsd:enumeration value="none"/>
<xsd:enumeration value="2d"/>
<xsd:enumeration value="3d"/>
<xsd:enumeration value="dgps"/>
<xsd:enumeration value="pps"/>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType name="dgpsStationType">
<xsd:restriction base="xsd:integer">
<xsd:minInclusive value="0"/>
<xsd:maxInclusive value="1023"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:schema>
I then used the msdn xsd tool ( https://www.microsoft.com/en-us/download/details.aspx?id=19988 ). I used the following command line from cmd.exe > xsd.exe /c /l:cs gps.xsd
I then pasted the cs code from the xsd tool into my project and used the following code in second answer to deserialize
solution2
0 2018-10-13 09:12:42
Here is code. See my second answer to find out how I generated the code. The 1439 results are from the complete xml file that the OP provided in the link at github in the variable 'sss'.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
namespace ConsoleApplication1
{
class Program
{
const string FILENAME = @"c:\temp\gps.xml";
static void Main(string[] args)
{
XmlReader reader = XmlReader.Create(FILENAME);
XmlSerializer serializer = new XmlSerializer(typeof(gpxType));
gpxType gps = (gpxType)serializer.Deserialize(reader);
trksegType[] seg = gps.trk[0].trkseg;
wptType[] wpt = seg[0].trkpt;
var points = wpt.Select(x => new { lat = x.lat, lon = x.lon, elevation = x.ele, time = x.time}).ToList();
}
}
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:2.0.50727.6421
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
// This source code was auto-generated by xsd, Version=2.0.50727.3038.
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
[System.Xml.Serialization.XmlRootAttribute("gpx", Namespace="http://www.topografix.com/GPX/1/1", IsNullable=false)]
public partial class gpxType {
private metadataType metadataField;
private wptType[] wptField;
private rteType[] rteField;
private trkType[] trkField;
private extensionsType extensionsField;
private string versionField;
private string creatorField;
public gpxType() {
this.versionField = "1.1";
}
/// <remarks/>
public metadataType metadata {
get {
return this.metadataField;
}
set {
this.metadataField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("wpt")]
public wptType[] wpt {
get {
return this.wptField;
}
set {
this.wptField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("rte")]
public rteType[] rte {
get {
return this.rteField;
}
set {
this.rteField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute("trk")]
public trkType[] trk {
get {
return this.trkField;
}
set {
this.trkField = value;
}
}
/// <remarks/>
public extensionsType extensions {
get {
return this.extensionsField;
}
set {
this.extensionsField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string version {
get {
return this.versionField;
}
set {
this.versionField = value;
}
}
/// <remarks/>
[System.Xml.Serialization.XmlAttributeAttribute()]
public string creator {
get {
return this.creatorField;
}
set {
this.creatorField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class metadataType {
private string nameField;
private string descField;
private personType authorField;
private copyrightType copyrightField;
private linkType[] linkField;
private System.DateTime timeField;
private bool timeFieldSpecified;
private string keywordsField;
private boundsType boundsField;
private extensionsType extensionsField;
/// <remarks/>
public string name {
get { return this.nameField; }
set { this.nameField = value; }
}
public string desc {
get { return this.descField; }
set { this.descField = value; }
}
public personType author {
get { return this.authorField; }
set { this.authorField = value; }
}
public copyrightType copyright {
get { return this.copyrightField; }
set { this.copyrightField = value; }
}
[System.Xml.Serialization.XmlElementAttribute("link")]
public linkType[] link {
get { return this.linkField; }
set { this.linkField = value; }
}
public System.DateTime time {
get { return this.timeField; }
set { this.timeField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool timeSpecified {
get { return this.timeFieldSpecified; }
set { this.timeFieldSpecified = value; }
}
public string keywords {
get { return this.keywordsField; }
set { this.keywordsField = value; }
}
public boundsType bounds {
get { return this.boundsField; }
set { this.boundsField = value; }
}
public extensionsType extensions {
get { return this.extensionsField; }
set { this.extensionsField = value; }
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class personType {
private string nameField;
private emailType emailField;
private linkType linkField;
/// <remarks/>
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
/// <remarks/>
public emailType email {
get {
return this.emailField;
}
set {
this.emailField = value;
}
}
/// <remarks/>
public linkType link {
get {
return this.linkField;
}
set {
this.linkField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class emailType {
private string idField;
private string domainField;
[System.Xml.Serialization.XmlAttributeAttribute()]
public string id {
get { return this.idField; }
set { this.idField = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public string domain {
get { return this.domainField; }
set { this.domainField = value; }
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class trksegType {
private wptType[] trkptField;
private extensionsType extensionsField;
[System.Xml.Serialization.XmlElementAttribute("trkpt")]
public wptType[] trkpt {
get { return this.trkptField; }
set { this.trkptField = value; }
}
public extensionsType extensions {
get { return this.extensionsField; }
set { this.extensionsField = value; }
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class wptType {
private decimal eleField;
private bool eleFieldSpecified;
private System.DateTime timeField;
private bool timeFieldSpecified;
private decimal magvarField;
private bool magvarFieldSpecified;
private decimal geoidheightField;
private bool geoidheightFieldSpecified;
private string nameField;
private string cmtField;
private string descField;
private string srcField;
private linkType[] linkField;
private string symField;
private string typeField;
private fixType fixField;
private bool fixFieldSpecified;
private string satField;
private decimal hdopField;
private bool hdopFieldSpecified;
private decimal vdopField;
private bool vdopFieldSpecified;
private decimal pdopField;
private bool pdopFieldSpecified;
private decimal ageofdgpsdataField;
private bool ageofdgpsdataFieldSpecified;
private string dgpsidField;
private extensionsType extensionsField;
private decimal latField;
private decimal lonField;
public decimal ele {
get { return this.eleField; }
set { this.eleField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool eleSpecified {
get { return this.eleFieldSpecified; }
set { this.eleFieldSpecified = value; }
}
public System.DateTime time {
get { return this.timeField; }
set { this.timeField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool timeSpecified {
get { return this.timeFieldSpecified; }
set { this.timeFieldSpecified = value; }
}
public decimal magvar
{
get { return this.magvarField; }
set { this.magvarField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool magvarSpecified {
get { return this.magvarFieldSpecified; }
set { this.magvarFieldSpecified = value; }
}
public decimal geoidheight {
get { return this.geoidheightField; }
set { this.geoidheightField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool geoidheightSpecified {
get { return this.geoidheightFieldSpecified; }
set { this.geoidheightFieldSpecified = value; }
}
public string name {
get { return this.nameField; }
set { this.nameField = value; }
}
public string cmt
{
get { return this.cmtField; }
set { this.cmtField = value; }
}
public string desc {
get { return this.descField; }
set { this.descField = value; }
}
public string src {
get { return this.srcField; }
set { this.srcField = value; }
}
[System.Xml.Serialization.XmlElementAttribute("link")]
public linkType[] link {
get { return this.linkField; }
set { this.linkField = value; }
}
public string sym
{
get { return this.symField; }
set { this.symField = value; }
}
public string type {
get { return this.typeField; }
set { this.typeField = value; }
}
public fixType fix {
get { return this.fixField; }
set { this.fixField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool fixSpecified {
get { return this.fixFieldSpecified; }
set { this.fixFieldSpecified = value; }
}
[System.Xml.Serialization.XmlElementAttribute(DataType="nonNegativeInteger")]
public string sat {
get { return this.satField; }
set { this.satField = value; }
}
public decimal hdop {
get { return this.hdopField; }
set { this.hdopField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool hdopSpecified {
get { return this.hdopFieldSpecified; }
set { this.hdopFieldSpecified = value; }
}
public decimal vdop {
get { return this.vdopField; }
set { this.vdopField = value; }
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool vdopSpecified {
get { return this.vdopFieldSpecified; }
set { this.vdopFieldSpecified = value; }
}
public decimal pdop {
get { return this.pdopField; }
set { this.pdopField = value;
}
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool pdopSpecified {
get { return this.pdopFieldSpecified; }
set { this.pdopFieldSpecified = value; }
}
public decimal ageofdgpsdata {
get { return this.ageofdgpsdataField; }
set { this.ageofdgpsdataField = value;
}
}
[System.Xml.Serialization.XmlIgnoreAttribute()]
public bool ageofdgpsdataSpecified {
get {return this.ageofdgpsdataFieldSpecified; }
set { this.ageofdgpsdataFieldSpecified = value; }
}
[System.Xml.Serialization.XmlElementAttribute(DataType="integer")]
public string dgpsid {
get { return this.dgpsidField; }
set { this.dgpsidField = value; }
}
public extensionsType extensions {
get { return this.extensionsField; }
set { this.extensionsField = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal lat {
get { return this.latField; }
set { this.latField = value; }
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal lon {
get { return this.lonField; }
set { this.lonField = value; }
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class linkType {
private string textField;
private string typeField;
private string hrefField;
public string text {
get {
return this.textField;
}
set {
this.textField = value;
}
}
public string type {
get {
return this.typeField;
}
set {
this.typeField = value;
}
}
[System.Xml.Serialization.XmlAttributeAttribute(DataType="anyURI")]
public string href {
get {
return this.hrefField;
}
set {
this.hrefField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public enum fixType {
none,
[System.Xml.Serialization.XmlEnumAttribute("2d")]
Item2d,
[System.Xml.Serialization.XmlEnumAttribute("3d")]
Item3d,
dgps,
pps,
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class extensionsType {
private System.Xml.XmlElement[] anyField;
[System.Xml.Serialization.XmlAnyElementAttribute()]
public System.Xml.XmlElement[] Any {
get {
return this.anyField;
}
set {
this.anyField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class trkType {
private string nameField;
private string cmtField;
private string descField;
private string srcField;
private linkType[] linkField;
private string numberField;
private string typeField;
private extensionsType extensionsField;
private trksegType[] trksegField;
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
public string cmt {
get {
return this.cmtField;
}
set {
this.cmtField = value;
}
}
public string desc {
get {
return this.descField;
}
set {
this.descField = value;
}
}
public string src {
get {
return this.srcField;
}
set {
this.srcField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute("link")]
public linkType[] link {
get {
return this.linkField;
}
set {
this.linkField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute(DataType="nonNegativeInteger")]
public string number {
get {
return this.numberField;
}
set {
this.numberField = value;
}
}
public string type {
get {
return this.typeField;
}
set {
this.typeField = value;
}
}
public extensionsType extensions {
get {
return this.extensionsField;
}
set {
this.extensionsField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute("trkseg")]
public trksegType[] trkseg {
get {
return this.trksegField;
}
set {
this.trksegField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class rteType {
private string nameField;
private string cmtField;
private string descField;
private string srcField;
private linkType[] linkField;
private string numberField;
private string typeField;
private extensionsType extensionsField;
private wptType[] rteptField;
public string name {
get {
return this.nameField;
}
set {
this.nameField = value;
}
}
public string cmt {
get {
return this.cmtField;
}
set {
this.cmtField = value;
}
}
public string desc {
get {
return this.descField;
}
set {
this.descField = value;
}
}
public string src {
get {
return this.srcField;
}
set {
this.srcField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute("link")]
public linkType[] link {
get {
return this.linkField;
}
set {
this.linkField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute(DataType="nonNegativeInteger")]
public string number {
get {
return this.numberField;
}
set {
this.numberField = value;
}
}
public string type {
get {
return this.typeField;
}
set {
this.typeField = value;
}
}
public extensionsType extensions {
get {
return this.extensionsField;
}
set {
this.extensionsField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute("rtept")]
public wptType[] rtept {
get {
return this.rteptField;
}
set {
this.rteptField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://www.topografix.com/GPX/1/1")]
public partial class boundsType
{
private decimal minlatField;
private decimal minlonField;
private decimal maxlatField;
private decimal maxlonField;
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal minlat
{
get
{
return this.minlatField;
}
set
{
this.minlatField = value;
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal minlon
{
get
{
return this.minlonField;
}
set
{
this.minlonField = value;
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal maxlat
{
get
{
return this.maxlatField;
}
set
{
this.maxlatField = value;
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public decimal maxlon
{
get
{
return this.maxlonField;
}
set
{
this.maxlonField = value;
}
}
}
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.3038")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(Namespace="http://www.topografix.com/GPX/1/1")]
public partial class copyrightType {
private string yearField;
private string licenseField;
private string authorField;
/// <remarks/>
[System.Xml.Serialization.XmlElementAttribute(DataType="gYear")]
public string year {
get {
return this.yearField;
}
set {
this.yearField = value;
}
}
[System.Xml.Serialization.XmlElementAttribute(DataType="anyURI")]
public string license {
get {
return this.licenseField;
}
set {
this.licenseField = value;
}
}
[System.Xml.Serialization.XmlAttributeAttribute()]
public string author {
get {
return this.authorField;
}
set {
this.authorField = value;
}
}
}
}
solution3
0 2018-10-14 13:55:28
I don't why, but the code below just work well for me. I still didn't find the correct xpath for them.
Even i get the "trkpt" node, i still can't get subnode with xpath, not perfact solution.
XmlDocument doc = new XmlDocument();
doc.LoadXml(sss);
XmlNodeList root = doc.GetElementsByTagName("trkpt");
Console.WriteLine(root.Count);
for (int i = 0; i < root.Count; i++)
{
Console.WriteLine("attr:" +root[i].Attributes["lat"].Value);
Console.WriteLine("attr:" +root[i].Attributes["lon"].Value);
Console.WriteLine("subnode:" +root[i].SelectNodes("./*")[0].InnerText);
Console.WriteLine("subnode:" +root[i].SelectNodes("./*")[1].InnerText);
Console.WriteLine("----");
}
solution4
0 ACCPTED 2018-10-14 18:39:39
If you just need the latitude and longitude you can easily get it with xml linq with code below :
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\gps.xml";
static void Main(string[] args)
{
XDocument doc = XDocument.Load(FILENAME);
XElement root = doc.Root;
XNamespace ns = root.GetDefaultNamespace();
var results = doc.Descendants(ns + "trkpt").Select(x => new
{
lat = x.Attribute("lat"),
lon = x.Attribute("lon"),
ele = (decimal)x.Element(ns + "ele"),
time = (DateTime)x.Element(ns + "time")
}).ToList();
}
}
}
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