1. Create a web page
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<script language="javascript" type="text/javascript">
<!-- Method provided to C# program calls ->
function messageBox(message)
{
alert(message);
}
</script>
</head>
<body>
<!-- Call C# method -->
<button onclick="('javascript access C# code')" >
javascript access to C# code</button>
</body>
</html>
2. Create Windows applications
1. Create Windows Application Project
2. Add WebBrowser control in Form1
3. Add above the Form1 class
[(true)]
This is to set the class to be accessible by com. If you do not make this statement, an error will occur. The error message is shown in the figure below:
like:
[(true)]
public partial class Form1 : Form
4. Initializes the Url and ObjectForScripting properties of WebBrowser.
Url property: The web page path displayed by the WebBrowser control
ObjectForScripting property: This object can be accessed by script code contained in the web page displayed in the WebBrowser control.
Set the Url property to the URL path of the page to which it needs to be operated.
JavaScript uses methods exposed by calling C#. That is, the public method contained in the instance of the class set by the ObjectForScripting property. Specific settings are as follows:
file = new ("");
// The web page path displayed by the WebBrowser control
= new Uri();
// Set the current class to be accessible by script
= this;
5. C# calls JavaScript methods
Call the Javascript method of the current web page through the InvokeScript method in the Document property of the WebBrowser class. like:
// Call JavaScript's messageBox method and pass in parameters
object[] objects = new object[1];
objects[0] = "C# access JavaScript script";
("messageBox", objects);
The complete code is as follows:
[(true)]
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
file = new ("");
// The web page path displayed by the WebBrowser control
= new Uri();
// Set the current class to be accessible by scripts
= this;
}
private void button1_Click(object sender, EventArgs e)
{
// Call JavaScript's messageBox method and pass in parameters
object[] objects = new object[1];
objects[0] = "C# access JavaScript script";
("messageBox", objects);
}
// Methods provided to JavaScript calls
public void MyMessageBox(string message)
{
(message);
}
}
Note: Original text: /xds/archive/2007/03/02/
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<script language="javascript" type="text/javascript">
<!-- Method provided to C# program calls ->
function messageBox(message)
{
alert(message);
}
</script>
</head>
<body>
<!-- Call C# method -->
<button onclick="('javascript access C# code')" >
javascript access to C# code</button>
</body>
</html>
2. Create Windows applications
1. Create Windows Application Project
2. Add WebBrowser control in Form1
3. Add above the Form1 class
[(true)]
This is to set the class to be accessible by com. If you do not make this statement, an error will occur. The error message is shown in the figure below:
like:
[(true)]
public partial class Form1 : Form
4. Initializes the Url and ObjectForScripting properties of WebBrowser.
Url property: The web page path displayed by the WebBrowser control
ObjectForScripting property: This object can be accessed by script code contained in the web page displayed in the WebBrowser control.
Set the Url property to the URL path of the page to which it needs to be operated.
JavaScript uses methods exposed by calling C#. That is, the public method contained in the instance of the class set by the ObjectForScripting property. Specific settings are as follows:
file = new ("");
// The web page path displayed by the WebBrowser control
= new Uri();
// Set the current class to be accessible by script
= this;
5. C# calls JavaScript methods
Call the Javascript method of the current web page through the InvokeScript method in the Document property of the WebBrowser class. like:
// Call JavaScript's messageBox method and pass in parameters
object[] objects = new object[1];
objects[0] = "C# access JavaScript script";
("messageBox", objects);
The complete code is as follows:
[(true)]
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
file = new ("");
// The web page path displayed by the WebBrowser control
= new Uri();
// Set the current class to be accessible by scripts
= this;
}
private void button1_Click(object sender, EventArgs e)
{
// Call JavaScript's messageBox method and pass in parameters
object[] objects = new object[1];
objects[0] = "C# access JavaScript script";
("messageBox", objects);
}
// Methods provided to JavaScript calls
public void MyMessageBox(string message)
{
(message);
}
}
Note: Original text: /xds/archive/2007/03/02/