winform与JS交互

摘自：http://blog.csdn.net/kkkkkxiaofei/article/details/8663377

winform中执行JS代码使用 webBrowser1.Document.InvokeScript("方法名称");

在JS中执行winform的方法需要引用 using System.Security.Permissions

并且在在命名空间中添加：

[PermissionSet(SecurityAction.Demand, Name = "FullTrust")]

[System.Runtime.InteropServices.ComVisibleAttribute(true)]

html的内容为：

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4 <style type="text/css">
 5 body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;}
 6 #l-map{height:100%;width:78%;float:left;border-right:2px solid #bcbcbc;}
 7 #r-result{height:100%;width:20%;float:left;}
 8 </style>
 9 <script type="text/javascript" src="http://api.map.baidu.com/api?v=1.5&ak=密匙"></script>
10 <title></title>
11 </head>
12     <body>
13         <input id="mouselng" type ="hidden" />
14         <input id="mouselat"  type = "hidden"/>
15         
16         <div id="allmap"></div>
17     </body>
18 </html>
19 <script type="text/javascript">
20     var map = new BMap.Map("allmap");
21     var marker_num = 0;
22 function loadScript() {   
23     map.centerAndZoom("重庆", 12);
24     map.enableScrollWheelZoom(true);
25 }
26 function PUTANDSEND() {
27     map.addEventListener("rightclick", putAndsend);
28 }
29 function putAndsend(e) {
30     //放标注
31     var p1 = new BMap.Point(e.point.lng, e.point.lat);
32     var marker = new BMap.Marker(p1); //将标注的图标改为小汽车
33     map.addOverlay(marker);
34     marker_num++; //标注索引，这个是个全局变量
35     var whichCar = window.external.setWhichCar();
36     var label = new BMap.Label(whichCar + "号车-坐标" + marker_num + ":" +
37 "(" + e.point.lng + "," + e.point.lat + ")", { offset: new BMap.Size(20, -10) });
38     marker.setLabel(label);
39     //给WINFORM传值
40     window.external.PutIntotextBox(marker_num, whichCar, e.point.lng, e.point.lat);
41 
42 }
43 window.onload = loadScript;
44 </script>

winform中cs的内容为：

 1 using System;
 2 using System.Windows.Forms;
 3 using System.Security.Permissions;
 4 
 5 namespace TestJS
 6 {
 7     [PermissionSet(SecurityAction.Demand, Name = "FullTrust")]
 8 
 9     [System.Runtime.InteropServices.ComVisibleAttribute(true)]
10     public partial class Form1 : Form
11     {
12         public Form1()
13         {
14             InitializeComponent();
15         }
16 
17         private void Form1_Load(object sender, EventArgs e)
18         {
19              string path = Application.StartupPath + @"\1.html";
20 
21              path = path.Replace("\\", "/");
22              path = "file://" + path;
23             webBrowser1.Url = new Uri(path);
24             webBrowser1.Document.InvokeScript("loadScript");
25             webBrowser1.ObjectForScripting = this;
26         }
27         private void btnPutMarker_Click(object sender, EventArgs e)
28         {
29             webBrowser1.Document.InvokeScript("PUTANDSEND");
30         }
31         //得到Radiobutton的值
32         public string setWhichCar()
33         {
34             if (radioButton1.Checked)
35                 return "1";
36             if (radioButton2.Checked)
37                 return "2";
38             if (radioButton3.Checked)
39                 return "3";
40             return "Erro";
41         }
42         public void PutIntotextBox(object markerIndex, object carNumber, object JSlng, object JSlat)
43         {
44             text_index.Text = markerIndex.ToString();
45             text_num.Text = (string)carNumber;
46             text_lng.Text = JSlng.ToString();
47             text_lat.Text = JSlat.ToString();
48             string sql = "insert into 汽车轨迹数据 values ('" + text_num.Text + "','" + text_index.Text + "','" + text_lng.Text + "','" + text_lat.Text + "','" + DateTime.Now.ToString() + "')";
49             //MessageBox.Show(sql);
50 
51         }
52     }
53 }

执行结果如图所示