attach Event in Javascript

Navneet Hegde

Hi All!

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace FinalEventsDLL
{
public delegate void ControlEventHandler(string redirectUrl);

\[Guid("E819B536-D64F-4fed-BCE7-F21650364211")\]
public interface DBCOM\_Interface
{
    \[DispId(1)\]
    void Hello1(string userid, string password);
    \[DispId(2)\]
    bool Hello2(string selCommand);
}

// // Events interface Database\_COMObjectEvents 
\[Guid("E72E89DB-788B-4f6d-BFB1-679CC103D13A"),
InterfaceType(ComInterfaceType.InterfaceIsIDispatch)\]
public interface DBCOM\_Events
{
    //Add a DispIdAttribute to any members in the source interface to specify the COM DispId.
    \[DispId(0x60020001)\]
    void OnClose(string redirectUrl); //This method will be visible from JS
}

\[Guid("EC393ACC-37A5-44da-B316-E4E367517D1C"),
ClassInterface(ClassInterfaceType.None),
ComSourceInterfaces(typeof(DBCOM\_Events))\]
public class FinalDLL : DBCOM\_Interface
{

    public FinalDLL() { }
    public event ControlEventHandler OnClose;

    public void Hello1(string userid, string password)
    {
        return;
    }

    public bool Hello2(string selCommand)
    {
        Close();
        return true;
    }

    \[ComVisible(true)\]
    public void Close()
    {
        if (OnClose != null)
        {
            OnClose("http://otherwebsite.com"); //Calling event that will be catched in JS
        }
        else
        {
            MessageBox.Show("No Event Attached"); //If no events are attached send message.
        }
    }
}

}

Above is the code for my C# DLL REGISTERED I have registered it using regasm D:\FinalEventsDLL.ddl /codebase /tlb IN JAVASCRIPT

<html xmlns="http://www.w3.org/1999/xhtml">
<head> <title>C# ActiveX Test</title> </head>

<body onload="myload();">
<h1>This is Our ActiveX Test Page h1>

function myload{
var myAx = new ActiveXObject("FinalEventsDLL.FinalDLL");

if(myAx != null)
{
   myAx.Hello2("sd")
}
else
{
    alert("NOOOO... we failed");
}

}
</script>

</body></html>

Everything is work