Hi group,

I'm trying to extend the ImageButton webcontrol to add "Ajax"
functionnality. So, my control implements ICallbackEventHandler and
I'm adding the js callback on onclick event :

       protected override void OnInit(EventArgs e)
       {
           string script = ".........my js script ..........";
           Page.ClientScript.RegisterClientScriptBlock(GetType(),
"myscript", script, true);
           base.OnInit(e);
       }

       protected override void OnLoad(EventArgs e)
       {
           string callbackRef =
Page.ClientScript.GetCallbackEventReference(this, "....my param....",
"ClientCallback", "null", true);
           Attributes["onclick"] = callbackRef;
           base.OnLoad(e);
       }

and a classical implementation for RaiseCallbackEvent and
GetCallbackResult

Everything is ok with IE, but it's not working on Firefox.

When I debug with FF, i can step on RaiseCallbackEvent or
GetCallbackResult, but it seems that the js method is never call

After some googling, i found this post : http://forums.asp.net/t/959825.aspx
where joteke tells us that the field seems to do a postback in FF

the generated html for my control is :

<input type="image" ... onclick="WebForm_DoCallback(....);"
style="border-width:0px;" />

So I can see my control generate an input type image. Is this the
problem ?

What should I do to make it working with FF ?

Do someone have any idea ?

Thanks for your help.

T.