C # ActiveX event not firing
I wrote a simple .Net Com activex and I could manage some event with javascript. I have read many posts, articles, but nothing to do. On the client side, I cannot catch any event with any single javascript syntax (attachEvent, function name, etc.).
Below is a code snippet about my activex:
[ComVisible(true)]
[InterfaceType(ComInterfaceType.InterfaceIsDual)]
[Guid("61327C9D-EFC5-42B7-BA0D-4A8648797003")]
public interface IHelloWorld
{
string GetText();
}
[ComVisible(true)]
[InterfaceType(ComInterfaceType.InterfaceIsIDispatch)]
[Guid("61327C9D-EFC5-42B7-BA0D-4A8648797003")]
public interface IMyEvt
{
[DispId(1)]
void OnMyEvt(int prm);
}
[ComImport()]
[Guid("13AD0E8B-BA3F-4CDE-A7D4-8A311EC1766B")]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IObjectSafety
{
[PreserveSig()]
int GetInterfaceSafetyOptions(ref Guid riid, out int pdwSupportedOptions, out int pdwEnabledOptions);
[PreserveSig()]
int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions);
}
[ComVisible(true)]
[ClassInterface(ClassInterfaceType.None)]
[Guid("32E6AD29-DD5F-46EA-A4D1-BD2F1E3EE064")]
[ProgId("AxControls.HelloWorld")]
[ComSourceInterfaces(typeof(IMyEvt))]
public class HelloWorld : UserControl, IHelloWorld, IObjectSafety
{
[ComVisible(false)]
public delegate void OnMyEvtDelgate(int prm);
[DispId(1)]
public event OnMyEvtDelgate OnMyEvt;
public HelloWorld()
{
this.OnMyEvt += new OnMyEvtDelgate(Dummy);
}
void Dummy(int param) { }
#region IHelloWorld Members
public string GetText()
{
return "Hello ActiveX World!";
}
#endregion
#region IObjectSafety Members
public enum ObjectSafetyOptions
{
INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001,
INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002,
INTERFACE_USES_DISPEX = 0x00000004,
INTERFACE_USES_SECURITY_MANAGER = 0x00000008
};
public int GetInterfaceSafetyOptions(ref Guid riid, out int pdwSupportedOptions, out int pdwEnabledOptions)
{
ObjectSafetyOptions m_options = ObjectSafetyOptions.INTERFACESAFE_FOR_UNTRUSTED_CALLER | ObjectSafetyOptions.INTERFACESAFE_FOR_UNTRUSTED_DATA;
pdwSupportedOptions = (int)m_options;
pdwEnabledOptions = (int)m_options;
return 0;
}
public int SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions)
{
return 0;
}
#endregion
}
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1 answer
You should be able to attach events like this:
<script type="text/javascript">
var activex = new ActiveXObject("AxControls.HelloWorld");
function raise() {
eval("function activex::HelloWorld(prm) {return onHelloWorld(prm);}");
activex.HelloWorld();
}
function onHelloWorld(prm) {
alert(prm);
return true;
}
</script>
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