Hi ;)

 I been testing a form with a asp.net image button inside of the UpdatePanel ...it works ok if you click in a safe area of the image , but if clicked on the edge of the image this message apears "Input string was not in a correct format." and the event dosent happen ......this appens in IE7 final ...in Firefox it dosent appen.

 Does anyone also have this strange beaviour??

 Thanks and Cheers

I had this problem before.

I think, and others in the forum suggested it too, that it's related with 404 responses (file not found), that, for some reason, ajax throws when you click on and image to trigger the async postback.

To "fix" it, I just added some javascript to ignore the error, because, in my case, it was happening randomly and it didn't actually break the application, so the user just has to click again. Here is my code, which, btw, is an adaptation from the tutorials found on the ajax site:

<script type="text/javascript">
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
function EndRequestHandler(sender, args)
{
if (args.get_error() != undefined && args.get_error().httpStatusCode == '500')
{
var errorMessage = args.get_error().message;
args.set_errorHandled(true);
}
}
</script>

 Cheers,

Juan

Hi

 Thanks for your help my friend ..but for some reason its not working...i get the same error

 Thanks

SixString,

I'm just using that code as a workaround, to get rid of the javascript popup message, and make the user click again. In my case, the user would click again on another part of the image, but I never actually "fixed" the problem. 

If the workaround is not enough for you, and you really need you user to be able to click the edge of the image, my solution is not going to work for you.

BTW, could you at least be able to get rid of the javascript popup alert?

Cheers
Juan 

Hi ...

I still get the message ...the strange thing is that this dosent happen in Firefox ...

 heres a image of what really happens when the button its not clicked right in the midlle "ImageClickError"

I didnt tried it in IE6 so i dont know if that happens there to

 Thanks

Ok, so it seems that the javascript code is not working there.

Make sure that you insert the javascript into the page (or master page) that contains the ScriptManager. In my case, the code is like this

 And, in the code behind, use the ScriptManager_AsyncPostBackError method to trap and clear the error:

It should work! :)

Thanks so mutch my friend ...that realy did the job!

Cheers

I'm glad it worked!

Juan

Hi,

 I also get this problem. Using IE7 final and beta 2 of MS Ajax.

 I will try the work around, but does anyone know if this is going to be fixed in the next release?

 Thanks

N

That would be something to ask to the AJAX team, but as it seems to be a common problem I think they should really try to fix it.

Cheers,

Juan

Hi friends

I have the same problem with IE 8 and Anthem.NET ajax library

Unfortunately i could not solve the problem with this solution but i have another solution for this problem :

just use a LinkButton with Image control inside instead of ImageButton like this :

<asp:LinkButton ID="btnRemove" runat="server" CommandArgument='<%# Eval("DemandID") %>' CommandName="delete"
<asp:Image runat="server" ImageUrl="~/Icons/Small/remove.png" ID="imgDelete" />
</asp:LinkButton>