我正在尝试使用 Bing 的 REST api 进行地理编码。但是当我检查我的数据库时，我的 'y' 值始终为空。任何帮助，将不胜感激。
private void Bing(geodata address)
{
try
{
string query;
//Create a new instance for holding geocoded data
currentdata newaddress = new currentdata();
newaddress.agency = address.agency;
newaddress.calltime = address.calltime;
newaddress.city = address.city;
newaddress.state = address.state;
newaddress.incidentType = address.incidentType;
newaddress.intersection = address.intersection.Replace("&", "and");
query = newaddress.intersection.ToString() + " " + newaddress.city.ToString() + " " + newaddress.state.ToString();
// query = query.Replace("&", "and");
//Geocoder returns data in XML format so we need to
//create a new instance of XMLTextReader and provide an url
XmlTextReader reader = new XmlTextReader
("http://dev.virtualearth.net/REST/v1/Locations/" + query + "?o=xml&key=MYBINGKEY");
//Specify the way how white space is handled
reader.WhitespaceHandling = WhitespaceHandling.Significant;
//Start reading geocoded data
while (reader.Read())
{
string node = reader.Name.ToString(); //current node in XML document
string value = reader.ReadString(); //value/inner text of current XML node
switch (node)
{
case "Name":
newaddress.intersection = value;
break;
case "Latitude":
newaddress.y = double.Parse(value);
break;
case "Longitude":
newaddress.x = double.Parse(value);
break;
default:
continue;
}
}
//Add geocoded address to our table
cD.currentdatas.InsertOnSubmit(newaddress);
cD.SubmitChanges();
}
catch
{
}
}