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