C#和网页js互调代码
C#和网页js互调代码
C#和网页js互调代码
1、先写个网页放在主程序目录下：test.html
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>测试网页</title>
<script>
function MyFunc(num) {
alert("大家好，这是js代码中的Alert，我将返回30！");
return 30 + num;
}
</script>
</head>
<body>
<input type="button" onclick="window.external.MyMessageBox('javascript访问C#代码');" value="点击测试调用C#中的方法！" />
</body>
</html>
2、打开WinForm，拖个按钮，拖个WebBrowser。
3、写C#代码并测试
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace WebWithForm
{
[System.Runtime.InteropServices.ComVisible(true)]
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.webBrowser2.ObjectForScripting = this;
}
private void Form1_Load(object sender, EventArgs e)
{
this.webBrowser2.Navigate(Application.StartupPath + "\\test.html");
}
private void button1_Click(object sender, EventArgs e)
{
var result = this.webBrowser2.Document.InvokeScript("MyFunc", new object[] { 30 });
this.Text = this.webBrowser2.Version.ToString();
label1.Text = "网页返回：" + result;
}
public void MyMessageBox(string message)
{
MessageBox.Show("这是C#的MessageBox提示：" + message);
}
}
}
4、运行效果：
C#和网页js互调代码
https://www.dearcloud.cn/2015/12/11/20200310-cnblogs-old-posts/20151211-CSharp和网页js互调代码/