我正在读取 Kml 文件,更改地标的名称,然后再次保存。
var KmlFile = XDocument.Load("C:\\Inetpub\\wwwroot\\GeotagService\\Kml\\Photographs.kml");
XNamespace KmlNamespace = "http://www.opengis.net/kml/2.2";
// find the Placemarks in the Photos folder
IEnumerable<XElement> Placemarks = KmlFile.Element(KmlNamespace + "kml").Element(KmlNamespace + "Document").Element(KmlNamespace + "Folder").Elements(KmlNamespace + "Placemark");
foreach (XElement p in Placemarks){
p.Element(KmlNamespace + "name").Value = "testing";
}
KmlFile.Save("C:\\Inetpub\\wwwroot\\GeotagService\\Kml\\Photographs.kml");
但是,当我保存它时,每个元素都带有前缀<kml:
,如下所示:
<kml:Folder>
<kml:name>Photos</kml:name>
<kml:open>1</kml:open>
<kml:Placemark>
<kml:name>testing</kml:name>
<kml:LookAt>
<kml:longitude>-10.02717694938161</kml:longitude>
<kml:latitude>53.48672543547379</kml:latitude>
<kml:altitude>0</kml:altitude>
</kml:LookAt>
<kml:styleUrl>#msn_ylw-pushpin1</kml:styleUrl>
<kml:Point>
<kml:coordinates>-10.02867619360582,53.48651240326751,0</kml:coordinates>
</kml:Point>
</kml:Placemark>...
Tomalak 对这个关于空白 xmlns的问题的评论给了我一个线索,即文档的名称空间和元素之间可能存在不一致,但我看不出我是如何做到的。有人知道吗?
编辑:原始文件(部分):
<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2" xmlns:kml="http://www.opengis.net/kml/2.2" xmlns:atom="http://www.w3.org/2005/Atom">
<Document>
<name>Connemara.net Photographs</name>
<open>1</open>
<Style id="sh_ylw-pushpin0">
<IconStyle>
<scale>1.3</scale>
<Icon>
<href>http://maps.google.com/mapfiles/kml/pushpin/ylw-pushpin.png</href>
</Icon>
<hotSpot x="20" y="2" xunits="pixels" yunits="pixels"/>
</IconStyle>
</Style>
<Folder>
<name>Photos</name>
<open>1</open>
<Placemark>
<name>Id:579</name>
<LookAt>
<longitude>-10.02717694938161</longitude>
<latitude>53.48672543547379</latitude>
<altitude>0</altitude>
<range>213.2931913230747</range>
<tilt>75.17546328115256</tilt>
<heading>69.89736514305363</heading>
<altitudeMode>relativeToGround</altitudeMode>
<gx:altitudeMode>relativeToSeaFloor</gx:altitudeMode>
</LookAt>
<styleUrl>#msn_ylw-pushpin1</styleUrl>
<Point>
<coordinates>-10.02867619360582,53.48651240326751,0</coordinates>
</Point>
</Placemark>
...
</Folder>
</Document>
</kml>