如何使用LatLon表的第一个条目加载谷歌地图dynamicaly

Question

我在C＃中创建了一个在Google地图上绘制标记的类，这个工作正常。现在我想用数据库中的第一个纬度和经度条目动态加载我的地​​图（目前我对它进行了硬编码）。但是，我似乎陷入困境。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;    

public static class GPSLib
{
    public static String PlotGPSPoints(DataTable tblPoints)
    {                    
        try
        {
            String Locations = "";
            String sJScript = "";
            String distancescript = "";
            String Latitude = "";
            String Longitude = "";                            
            int i = 0;
            foreach (DataRow r in tblPoints.Rows)
            {
                // bypass empty rows 
                if (r["latitude"].ToString().Trim().Length == 0)
                    continue;

              Latitude = r["latitude"].ToString();
              Longitude = r["longitude"].ToString();    
                // create a line of JavaScript for marker on map for this record 
                Locations += Environment.NewLine + @"path.push(new google.maps.LatLng(" + Latitude + ", " + Longitude + @"));
                var marker" + i.ToString() + @" = new google.maps.Marker({position: new google.maps.LatLng(" + Latitude + ", " + Longitude + @"),

                title: 'You Have Visited This Place '
                + path.getLength(),map: map });
                ";
                i++;
            }   

            // construct the final script
            sJScript = @"<script type='text/javascript'>

            var poly;
            var map;
            var lat;
            var lon;

            function initialize() {
                var cmloc = new google.maps.LatLng(34.0712,74.8106); // here i want map should load dynamicaly with first lat and lon entry. 
                var myOptions = {
                    zoom: 15,
                    center: cmloc,
                    mapTypeId: google.maps.MapTypeId.ROADMAP
                };  



              map = new google.maps.Map(document.getElementById('map_canvas'), myOptions);

                var polyOptions = {
                    strokeColor: 'blue',
                    strokeOpacity: 1.5,
                    strokeWeight: 3
                }


                poly = new google.maps.Polyline(polyOptions);
                poly.setMap(map);

                var path = poly.getPath();

                " + Locations + @"

                    }



                </script>";
            return sJScript;
        }
        catch (Exception ex)
        {
            throw ex;
        }

    }
}