ช่วยด้วยค่ะ google map มันจิ้มไม่ลง Please please !!

<%@ Page Title="" Language="C#" MasterPageFile="~/SiteMaster2.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="DDProperty.WebForm1" %>
<%@ Register assembly="GMaps" namespace="Subgurim.Controles" tagprefix="cc1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
 <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=true_or_false&amp;key=ABQIAAAAXr8HWGsn5O2iz7zvk_gkoRT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSpnGkJL5-RE7iMmVQjd8n5AKEJiQ" type="text/javascript">
    </script>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
  <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=true_or_false&amp;key=ABQIAAAAXr8HWGsn5O2iz7zvk_gkoRT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSpnGkJL5-RE7iMmVQjd8n5AKEJiQ" type="text/javascript">
    </script>
 <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" 
            onselectedindexchanged="DropDownList1_SelectedIndexChanged">
            <asp:ListItem>สาทร</asp:ListItem>
            <asp:ListItem>รามคำแหง</asp:ListItem>
        </asp:DropDownList>
        <cc1:GMap ID="GMap1" runat="server" />
        <asp:Button ID="btnSave" runat="server" Text="Save New Location" 
            onclick="btnSave_Click" />
            <asp:HiddenField ID="hidLat" runat="server" />
    <asp:HiddenField ID="Lat" runat="server" />
    <asp:HiddenField ID="Long" runat="server" />
    <asp:HiddenField ID="hidLng" runat="server" />
</asp:Content>

protected Subgurim.Controles.GMarker oMarker;

        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnSave_Click(object sender, EventArgs e)
        {
            Lat.Value = hidLat.Value;
            Long.Value = hidLng.Value;
            GMap1.resetMarkers();
            GMap1.resetListeners();
            AddMarker(Convert.ToDouble(hidLat.Value), Convert.ToDouble(this.hidLng.Value));
        }


        protected void btnLocate_Click(object sender, EventArgs e)
        {
            Subgurim.Controles.GeoCode GeoCode = default(Subgurim.Controles.GeoCode);

            GeoCode = GMap1.geoCodeRequest(DropDownList1.SelectedValue);
            if (GeoCode.valid == true)
            {
                Lat.Value = Convert.ToString(GeoCode.Placemark.coordinates.lat);
                Long.Value = Convert.ToString(GeoCode.Placemark.coordinates.lng);

                Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);

                GMap1.setCenter(gLatLng, 16, Subgurim.Controles.GMapType.GTypes.Normal);

                AddMarker(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);
            }
            else
            {
                Msg("Unable to find that location.");
            }
        }

        private void AddMarker(double dLat, double dLong)
        {
            Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(dLat, dLong);

            Subgurim.Controles.GMarkerOptions oOption = new Subgurim.Controles.GMarkerOptions();
            oOption.draggable = true;

            GMap1.resetMarkers();
            GMap1.resetListeners();

            oMarker = new Subgurim.Controles.GMarker(gLatLng, oOption);

            GMap1.addGMarker(oMarker);

            GMap1.addListener(new Subgurim.Controles.GListener(oMarker.ID, Subgurim.Controles.GListener.Event.dragend, "function(){ document.getElementById('hidLat').value=" + oMarker.ID + ".getPoint().lat();document.getElementById('hidLng').value=" + oMarker.ID + ".getPoint().lng() }"));
        }

        private void Msg(string sText)
        {
            //Page.ClientScript.RegisterClientScriptBlock(GetType(String), "msg", "<script>Alert('" & sText & "');</script>")

            Response.Write("<script type='text/javascript'>alert('" + sText + "');</script>");
        }

        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            Subgurim.Controles.GeoCode GeoCode = default(Subgurim.Controles.GeoCode);

            GeoCode = GMap1.geoCodeRequest(DropDownList1.SelectedValue);
            if (GeoCode.valid == true)
            {
                Lat.Value = Convert.ToString(GeoCode.Placemark.coordinates.lat);
                Long.Value = Convert.ToString(GeoCode.Placemark.coordinates.lng);

                Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);

                GMap1.setCenter(gLatLng, 16, Subgurim.Controles.GMapType.GTypes.Normal);

                AddMarker(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);
            }
            else
            {
                Msg("Unable to find that location.");
            }
        }

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="googleMap._Default" %>

<%@ Register Assembly="GMaps" Namespace="Subgurim.Controles" TagPrefix="cc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title></title>
    <style type="text/css">
        .style1
        {
            width: 98px;
        }
    </style>
    <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;sensor=true_or_false&amp;key=ABQIAAAAXr8HWGsn5O2iz7zvk_gkoRT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSpnGkJL5-RE7iMmVQjd8n5AKEJiQ" type="text/javascript">
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <asp:HiddenField ID="hidLat" runat="server" />
    <asp:HiddenField ID="Lat" runat="server" />
    <asp:HiddenField ID="Long" runat="server" />
    <asp:HiddenField ID="hidLng" runat="server" />
<table>
    <tr>
    <td class="style1">ค้นหาสถานที่</td><td colspan=2>
        <asp:TextBox ID="txtLocation" runat="server" Width="368px"></asp:TextBox></td>
    </tr>
    <tr>
    <td class="style1"></td><td colspan="2"><asp:Button ID="btnLocate" runat="server" 
            Text="Search" onclick="btnLocate_Click" /></td>
    </tr>
    <tr>
    <td class="style1">&nbsp;</td><td>ละติจูด: <asp:TextBox ID="txtLat" runat="server"></asp:TextBox></td><td>
        ลองติจูด: <asp:TextBox ID="txtLong" runat="server"></asp:TextBox></td>
    </tr>
    <tr>
    <td class="style1">&nbsp;</td><td>
        <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" 
            onselectedindexchanged="DropDownList1_SelectedIndexChanged">
            <asp:ListItem>สาทร</asp:ListItem>
            <asp:ListItem>รามคำแหง</asp:ListItem>
        </asp:DropDownList>
        </td><td>
            &nbsp;</td>
    </tr>
    <tr>
    <td colspan="3">
        <cc1:GMap ID="GMap1" runat="server" />
    </td>
    </tr>
    <tr>
    <td colspan="3"><asp:Button ID="btnSave" runat="server" Text="Save New Location" 
            onclick="btnSave_Click" />
        
        </td>
    </tr>
    </table>
    </form>
</body>
</html>


protected Subgurim.Controles.GMarker oMarker;

        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnSave_Click(object sender, EventArgs e)
        {
            txtLat.Text = hidLat.Value;
            Long.Value = hidLng.Value;
            GMap1.resetMarkers();
            GMap1.resetListeners();
            AddMarker(Convert.ToDouble(hidLat.Value), Convert.ToDouble(this.hidLng.Value));
        }


        protected void btnLocate_Click(object sender, EventArgs e)
        {
            Subgurim.Controles.GeoCode GeoCode = default(Subgurim.Controles.GeoCode);
           
            GeoCode = GMap1.geoCodeRequest(this.txtLocation.Text);
            if (GeoCode.valid == true)
            {
                txtLat.Text = Convert.ToString(GeoCode.Placemark.coordinates.lat);
                Long.Value = Convert.ToString(GeoCode.Placemark.coordinates.lng);

                Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);

                GMap1.setCenter(gLatLng, 16, Subgurim.Controles.GMapType.GTypes.Normal);

                AddMarker(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);
            }
            else
            {
                Msg("Unable to find that location.");
            }
        }

        private void AddMarker(double dLat, double dLong)
        {
            Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(dLat, dLong);

            Subgurim.Controles.GMarkerOptions oOption = new Subgurim.Controles.GMarkerOptions();
            oOption.draggable = true;

            GMap1.resetMarkers();
            GMap1.resetListeners();

            oMarker = new Subgurim.Controles.GMarker(gLatLng, oOption);

            GMap1.addGMarker(oMarker);

            GMap1.addListener(new Subgurim.Controles.GListener(oMarker.ID, Subgurim.Controles.GListener.Event.dragend, "function(){ document.getElementById('hidLat').value=" + oMarker.ID + ".getPoint().lat();document.getElementById('hidLng').value=" + oMarker.ID + ".getPoint().lng() }"));
        }

        private void Msg(string sText)
        {
            //Page.ClientScript.RegisterClientScriptBlock(GetType(String), "msg", "<script>Alert('" & sText & "');</script>")
            
            Response.Write("<script type='text/javascript'>alert('" + sText + "');</script>");
        }

        protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
        {
            Subgurim.Controles.GeoCode GeoCode = default(Subgurim.Controles.GeoCode);

            GeoCode = GMap1.geoCodeRequest(DropDownList1.SelectedValue);
            if (GeoCode.valid == true)
            {
                txtLat.Text = Convert.ToString(GeoCode.Placemark.coordinates.lat);
                Long.Value = Convert.ToString(GeoCode.Placemark.coordinates.lng);

                Subgurim.Controles.GLatLng gLatLng = new Subgurim.Controles.GLatLng(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);

                GMap1.setCenter(gLatLng, 16, Subgurim.Controles.GMapType.GTypes.Normal);

                AddMarker(GeoCode.Placemark.coordinates.lat, GeoCode.Placemark.coordinates.lng);
            }
            else
            {
                Msg("Unable to find that location.");
            }
        }