【实例简介】
涵盖了几种常用的 webBrowser执行javascript的方法，详见示例截图以及代码
【实例截图】
【核心代码】
execScript方式:
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using
mshtml;
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
WebBrowser_Script
{
public
partial
class
execScriptForm : Form
{
public
execScriptForm()
{
InitializeComponent();
}
private
void
btnOpen_Click(
object
sender, EventArgs e)
{
this
.webBrowser1.Navigate(
this
.txtUrl.Text);
}
private
void
webBrowser1_DocumentCompleted(
object
sender, WebBrowserDocumentCompletedEventArgs e)
{
IHTMLDocument2 Doc2 = (IHTMLDocument2)webBrowser1.Document.DomDocument;
if
(Doc2.parentWindow !=
null
)
{
string
order =
" alert('这里可以执行页面中存在的任意函数' document.body.innerHTML); "
;
//MessageBox.Show(order);
Doc2.parentWindow.execScript(order,
"JavaScript"
);
}
}
}
}
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NavigateScript方式:
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using
System;
using
System.Collections.Generic;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Linq;
using
System.Runtime.InteropServices;
using
System.Text;
using
System.Windows.Forms;
namespace
WebBrowser_Script
{
[ComVisible(
true
)]
public
partial
class
NavigateScriptForm : Form
{
public
NavigateScriptForm()
{
InitializeComponent();
}
private
void
btnOpen_Click(
object
sender, EventArgs e)
{
this
.webBrowser1.Navigate(
this
.txtUrl.Text);
}
private
void
webBrowser1_DocumentCompleted(
object
sender, WebBrowserDocumentCompletedEventArgs e)
{
webBrowser1.Navigate(
@"javascript:
function alert(str)
{
window.external.alertMessage(str);
}"
);
webBrowser1.ObjectForScripting =
this
;
}
public
void
alertMessage(
string
s)
{
MessageBox.Show(s,
"这是自定义的title，呵呵呵"
);
}
private
void
NavigateScriptForm_Load(
object
sender, EventArgs e)
{
webBrowser1.DocumentText =
@"
<html>
<input type=""button"" value=""测试"" onclick=""alert('好例子网 路过');"">
</html>
"
;
}
}
}
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InvokeScript方式：
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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
WebBrowser_Script
{
public
partial
class
InvokeScriptForm : Form
{
public
InvokeScriptForm()
{
InitializeComponent();
this
.webBrowser1.Navigate(
this
.txtUrl.Text);
}
private
void
btnOpen_Click(
object
sender, EventArgs e)
{
var input =
this
.webBrowser1.Document.GetElementById(
"kw"
);
input.SetAttribute(
"value"
,
"好例子网"
);
var button =
this
.webBrowser1.Document.GetElementById(
"su"
);
button.InvokeMember(
"click"
);
}
private
void
webBrowser1_DocumentCompleted(
object
sender, WebBrowserDocumentCompletedEventArgs e)
{
}
}
}
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另外:InvokeScript 还可以带参数的形式执自定义行脚本方法
例如: webBrowser1.Document.InvokeScript("getPwd", new object[] { "18780110000" })