/**
* Loads Poi basic data: descr, lang and type from xml file
*/
public void loadData(Poi poi, string poiSubDir)
{
//Debug.WriteLine("loadData: poi sub dir: " + poiSubDir, ToString());
string descr = "";
string lang = "";
string type = "";
// load xml document
XmlDocument poiXmlDoc = new XmlDocument();
string poiXmlPath = getPoiXmlPath(poiSubDir);
poiXmlDoc.Load(poiXmlPath);
// get descr
XmlNode descrNode = poiXmlDoc.SelectSingleNode("/poi/descr");
descr = descrNode.InnerText;
// get lang
XmlNode langNode = poiXmlDoc.SelectSingleNode("/poi/lang");
lang = langNode.InnerText;
// get type
XmlNode typeNode = poiXmlDoc.SelectSingleNode("/poi/type");
type = typeNode.InnerText;
// insert data into poi
poi.insertData(descr, lang, type);
}