用于查找特定地址的纬度和经度的源代码 [英] Source code for finding latitude and longitude for a particular address

问题描述

我希望使用c＃和Asp.NET获取特定地址的纬度和经度

请帮助我使用googlemap

解决方案

< blockquote>以下是如何操作的示例：

  public   void  GetCoOrdinates（ string  street， string  city， string  state）
 {
  string  serviceUri =  string  .Format（  http://rpc.geocoder.us/service/休息？地址= {0}，{1}，{2}，街道，城市，州）; 
 XmlDocument serviceXmlDoc =  new  XmlDocument（）; 
 serviceXmlDoc.Load（serviceUri）; 
 XmlNamespaceManager geoCoderManager =  new  XmlNamespaceManager（serviceXmlDoc.NameTable）; 
 geoCoderManager.AddNamespace（  geoCoderService， @  http://www.w3.org/2003/01/geo/wgs84_pos#）; 
  string 经度= serviceXmlDoc.DocumentElement.SelectSingleNode（ @  // geoCoderService：long，geoCoderManager）.InnerText; 
  string  latitude = serviceXmlDoc.DocumentElement.SelectSingleNode（ @  // geoCoderService：lat，geoCoderManager）.InnerText; 
 MessageBox.Show（ String  .Format（ 纬度：{0}纬度：{1}，纬度，经度））; 
} 

而不是你可以写的消息框 Response.Write（）或类似的网络应用程序。



希望这有帮助

试试这个：它有效对我来说...

  public 列表<串GT; GetCoOrdinates（ string  street， string  city， string 州）
 {
 尝试 
 {
 List< string> lstCordinates =  new  List< string>（）; 
 
  string  serviceUri =  string  .Format（  http://rpc.geocoder.us/service/rest?address= {0}，{1}，{2} ，街道，城市，国家）; 
 
 XmlDocument serviceXmlDoc =  new  XmlDocument（）; 
 
 serviceXmlDoc.Load（serviceUri）; 
 
 XmlNamespaceManager geoCoderManager =  new  XmlNamespaceManager（serviceXmlDoc.NameTable）; 
 
 geoCoderManager.AddNamespace（  geoCoderService， @  http://www.w3.org/2003/01/geo/wgs84_pos#）; 
 
  string 经度= serviceXmlDoc.DocumentElement.SelectSingleNode（ @  // geoCoderService：long，geoCoderManager）.InnerText; 
 
  string  latitude = serviceXmlDoc.DocumentElement.SelectSingleNode（ @  // geoCoderService：lat，geoCoderManager）.InnerText; 
 
  //   Console.WriteLine（String.Format（纬度：{0}纬度： {1}，纬度，经度））;  
 
 lstCordinates.Add（纬度）; 
 lstCordinates.Add（经度）; 
 
  return  lstCordinates; 
} 
  catch （例外情况）
 {
  throw  ex; 
} 
} < /   string  >  < /   string   >  < /   string  >  

显示以下错误

根级别的数据无效。第1行，第1位。

I want to get the latitude and longitude for a particular address using c# and Asp.NET
Please help me anybody using googlemap

解决方案

Here is an example of how to do it :

public void GetCoOrdinates(string street, string city, string state)
        {
            string serviceUri = string.Format("http://rpc.geocoder.us/service/rest?address={0},{1},{2}", street, city, state);
            XmlDocument serviceXmlDoc = new XmlDocument();
            serviceXmlDoc.Load(serviceUri);
            XmlNamespaceManager geoCoderManager = new XmlNamespaceManager(serviceXmlDoc.NameTable);
            geoCoderManager.AddNamespace("geoCoderService", @"http://www.w3.org/2003/01/geo/wgs84_pos#");
            string longitude = serviceXmlDoc.DocumentElement.SelectSingleNode(@"//geoCoderService:long", geoCoderManager).InnerText;
            string latitude = serviceXmlDoc.DocumentElement.SelectSingleNode(@"//geoCoderService:lat", geoCoderManager).InnerText;
            MessageBox.Show(String.Format("Latitude: {0} Latitude: {1}", latitude, longitude));
        }

instead of a message box you can just write Response.Write() or similar for a web app.

Hope this helps

Try this: It worked for me...

public List<string> GetCoOrdinates(string street, string city, string state)
        {
            try
            {
                List<string> lstCordinates = new List<string>();

                string serviceUri = string.Format("http://rpc.geocoder.us/service/rest?address={0},{1},{2}", street, city, state);

                XmlDocument serviceXmlDoc = new XmlDocument();

                serviceXmlDoc.Load(serviceUri);

                XmlNamespaceManager geoCoderManager = new XmlNamespaceManager(serviceXmlDoc.NameTable);

                geoCoderManager.AddNamespace("geoCoderService", @"http://www.w3.org/2003/01/geo/wgs84_pos#");

                string longitude = serviceXmlDoc.DocumentElement.SelectSingleNode(@"//geoCoderService:long", geoCoderManager).InnerText;

                string latitude = serviceXmlDoc.DocumentElement.SelectSingleNode(@"//geoCoderService:lat", geoCoderManager).InnerText;

                //Console.WriteLine(String.Format("Latitude: {0} Latitude: {1}", latitude, longitude));

                lstCordinates.Add(latitude);
                lstCordinates.Add(longitude);

                return lstCordinates;
            }
            catch (Exception ex)
            {
                throw ex;
            }            
        }</string></string></string>

it showing below error
Data at the root level is invalid. Line 1, position 1.

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