本文實例講述了C#通過Html調用WinForm的方法。分享給大家供大家參考,具體如下:
完整測試代碼:
Form1.cs:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace test
{
[System.Runtime.InteropServices.ComVisibleAttribute(true)]
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
System.IO.FileInfo file = new System.IO.FileInfo(Application.StartupPath+@"\test1.htm");
webBrowser1.Url = new Uri(file.FullName);
webBrowser1.ObjectForScripting = this;
}
private void button1_Click(object sender, EventArgs e)
{
object[] objects = new object[1];
objects[0]="C#訪問Javascript腳本";
webBrowser1.Document.InvokeScript("messageBox", objects);
}
public void MyMessageBox(string message)
{
MessageBox.Show(message);
}
}
}
類WinOper:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14[System.Runtime.InteropServices.ComVisibleAttribute(true)]
public class WinOperationClass
{
public void MyMessageBox1()
{
MessageBox.Show(message);
}
public void ShowForm()
{
Form2 f2 = new Form2();
f2.WindowState = FormWindowstate.Normal;
f2.Show();
}
}
網頁:
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17<!DOCTYPE HTML PUBLIC "-//W3C//DTD Html 4.0 Transitional//EN">
<Html>
<head>
<title></title>
<script language="Javascript" type="text/Javascript">
function messageBox(message)
{
alert(message);
}
</script>
</head>
<body>
<button onclick="window.external.MyMessageBox('Javascript訪問C#代碼')">Javascript訪問C#代碼</button>
<a href="Javascript:window.external.MyMessageBox1()">Javascript訪問C#代碼</a>
<a href="Javascript:window.external.ShowForm()">Javascript訪問C#代碼</a>
</body>
</Html>
補充:
? 1webBrowser1.ObjectForScripting = this;
這句話的意思是webBrowser1的腳本執行的Com綁定的方法是 從Form1 來的,而MyMessageBox1和ShowForm卻是在WinOperationClass類裡面的,肯定是不行的。
第一個可以是因為form1裡面有MyMessageBox這個方法,你吧MyMessageBox1和ShowForm移動到form1中或者把MyMessageBox移動到WinOperationClass裡面,再把
? 1webBrowser1.ObjectForScripting = this;
這句改成
? 1 2WinOperationClass w=new WinOperationClass();
webBrowser1.ObjectForScripting = w;
就可以了
推薦第二種……把所有的 Com可見的方法放在一個類裡面好維護