Windows下C#的GUI窗口法式中完成挪用Google Map的實例。本站提示廣大學習愛好者：（Windows下C#的GUI窗口法式中完成挪用Google Map的實例）文章只能為提供參考，不一定能成為您想要的結果。以下是Windows下C#的GUI窗口法式中完成挪用Google Map的實例正文
對谷歌地圖操作應用的是WebBrowser控件，經由過程對javascript的操作來完成對谷歌地圖的各類操作，所以起首要創立一個html文件，並賦給WebBrowser的URl：
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps</title>
<link href="http://code.谷歌.com/apis/maps/documentation/javascript/examples/default.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="http://maps.谷歌.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var map;
function initialize() {//初始化
var myLatlng = new 谷歌.maps.LatLng( 34.259442,108.947071);
var myOptions = {
zoom: 10,
center: myLatlng,
mapTypeId: 谷歌.maps.MapTypeId.ROADMAP
}
map = new 谷歌.maps.Map(document.getElementById("map_canvas"), myOptions);
}
function zoomIn(){//縮小函數
var zoomLevel = map.getZoom();
if(zoomLevel < 21){
zoomLevel += 1;
map.setZoom(zoomLevel);
}
}
function zoomOut(){//減少函數
var zoomLevel = map.getZoom();
if(zoomLevel > 0){
zoomLevel -= 1;
map.setZoom(zoomLevel);
}
}
function markLocation(x,y){//標志某個地位
var myLatlng = new 谷歌.maps.LatLng(x, y);
map.setCenter(myLatlng);
marker = new 谷歌.maps.Marker({
map: map,
position: myLatlng,
draggable:true,
title:"緯度:"+x+" 經度:"+y
});
}
</script>
</head>
<body onload="initialize()">
<div id="map_canvas"></div>
</body>
</html>
操作地圖的簡略函數都寫在javascript裡
C#源文件以下
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace GoogleMapDemo
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
string url = Application.StartupPath + "/map-simple.html";
webBrowser1.Url = new Uri(url);//指定url
}
private void toolStripButtonStart_Click(object sender, EventArgs e)
{
webBrowser1.Document.InvokeScript("initialize");//履行jiavascript
}
private void toolStripButtonZoomIn_Click(object sender, EventArgs e)
{
webBrowser1.Document.InvokeScript("zoomIn");
}
private void toolStripButtonZoomOut_Click(object sender, EventArgs e)
{
webBrowser1.Document.InvokeScript("zoomOut");
}
private void toolStripButtonMark_Click(object sender, EventArgs e)
{
object[] obj = { toolStripTextBox1.Text, toolStripTextBox2.Text };
webBrowser1.Document.InvokeScript("markLocation", obj);
}
}
}
PS：假如只是想純真地挪用閱讀器翻開網頁，可以如許：
private void lbllink_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
//挪用IE閱讀器
System.Diagnostics.Process.Start("iexplore.exe", "http://www.谷歌.cn");
//挪用體系默許的閱讀器
System.Diagnostics.Process.Start( "http://www.谷歌.cn");
}
private void lbllink_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
//挪用IE閱讀器
System.Diagnostics.Process.Start("iexplore.exe", "http://www.谷歌.cn");
//挪用體系默許的閱讀器
System.Diagnostics.Process.Start( "http://www.谷歌.cn");
}
