如何使用Google地图制作地理位置标记

问题描述

我需要你们的小帮助我们有一个数据库名称和和一个地理位置代码帮我创建用户可以设置一个loaction并保存到数据库字段:)

i need a small help from you guys i have a database name and and a geo location code help me to create user can set a loaction and it's save to database fields :)

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="mapsettings.aspx.cs" Inherits="mapsettings" %>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

   <script type="text/javascript"

src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC6v5-2uaq_wusHDktM9ILcqIrlPtnZgEk&sensor=false">
</script>
<script type="text/javascript">
    function initialize() {
        var lat = document.getElementById('txtlat').value;
        var lon = document.getElementById('txtlon').value;
        var myLatlng = new google.maps.LatLng(lat, lon) // This is used to center the map to show our markers
        var mapOptions = {
            center: myLatlng,
            zoom: 6,
            mapTypeId: google.maps.MapTypeId.ROADMAP,
            marker: true
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
        var marker = new google.maps.Marker({
            position: myLatlng
        });
        marker.setMap(map);
    }
</script>



     <form id="form1"   runat="server">
<table>
<tr>
<td>Enter Latitude:</td>
<td><input type="text" id="txtlat" value="13.053147716796578" /> </td>
</tr>
<tr>
<td>Enter Longitude:</td>
<td><input type="text" id="txtlon" value="80.2501953125" /> </td>
</tr>
<tr>
<td></td>
<td><input type="button" value="Submit"  önclick="javascript: initialize()" /> </td>
</tr>
</table>
<div id="map_canvas" style="width: 500px; height: 400px"></div>
</form>

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