Repeated calls to Repeated calls to raduploadprogresshandler.ashx after Ajax call

[Mike]

Here's the issue:

When I have a RadUpload control on the page and then do any type of Ajax call before a submit, there is repeated calls to Raduploadprogresshandler.ashx until the browser is shut down. This issue was also documented here:

http://www.telerik.com/community/forums/aspnet-ajax/upload/mulitple-requests-to-telerik-raduploadprogresshandler-ashx.aspx 

but, I tried both of those fixes and neither worked completely. Adding:

<add key="AllowCustomProgress" value="false"/> 

to the web.config worked, but only if the RadUpload control did not have a file already selected.

What is the correct way of avoiding this issue?

Thanks!

- Mike

[Dimitar Terziev]

Hi Mike,

The workaround suggested in the forum thread you have mentioned  is indeed valid only when there is no file selected in the RadUpload. Please try to add the following code , right after the declaration of your RadScriptManager or ScriptManager:

<script type="text/javascript">

            Telerik.Web.UI.RadProgressManager.prototype._clientSubmitHandler = function (eventArgs) {

                var cancelArgs = new Sys.CancelEventArgs();

                this.raiseEvent('submitting', cancelArgs);
                if (cancelArgs.get_cancel()) {
                    return $telerik.cancelRawEvent(eventArgs);
                }

                if (!this._allowCustomProgress) {
                    var hasFiles = false;

                    var inputs = $telerik.$("input[type='file']");
                    $telerik.$.each(inputs, function () {
                        if (this.value != "" && !Sys.WebForms.PageRequestManager.getInstance().get_isInAsyncPostBack()) {
                            hasFiles = true;
                            //exit the loop
                            return;
                        }
                    });

                    if (!hasFiles)
                        return;
                }
            }
        </script>

Kind regards,
Dimitar Terziev
the Telerik team

[Mike]

Hi,

I code snippet above does the trick, thanks! Is this workaround going to be fixed anytime soon? That is - should I remove this fix after the next release?

Thanks,

Mike Oliver

[Dimitar Terziev]

Hi Mike,

I'm glad that the overwrite provided is working for you. As for your question, yes this will be fixed in some of the upcoming internal builds, so my suggestion is to keep track of the release notes. This way when the issue is fixed you could remove the unnecessary code.

Greetings,
Dimitar Terziev
the Telerik team

[richard]

I am having the same problem when using the progress bar on a page.
I have a progress bar used while a page is loading alot of data from the database. So I tried the "fix" above and now the progress bar does not show at all....all of the unneeded calls from the ashx stopped but now no progress bar at all.

This problem is many years old is there a real fix or?????

What do i do?

[Mike]

I had to modify the above fix awhile ago as a new version of Telerik broke it. Here's our latest hack:

// "fix" for repeated progress calls after Ajax
if (typeof (Telerik) != "undefined" && typeof (Telerik.Web.UI.RadProgressManager) != "undefined")
{
Telerik.Web.UI.RadProgressManager.prototype._origClientSubmitHandler = Telerik.Web.UI.RadProgressManager.prototype._clientSubmitHandler;
Telerik.Web.UI.RadProgressManager.prototype._clientSubmitHandler = function (eventArgs)
{
var async = (eventArgs != null); // hack - assumption that param is null when called via non-ajax postback, otherwise contains ajax element info
if (async)
return;

this._origClientSubmitHandler(eventArgs);
}
}

[richard]

Mike,

Thanks for the code but now my progress bar doesn't show at all.

[Boyan Dimitrov]

Hello Richard,

Could you please confirm that using the workaround posted by Dimitar Terziev did not work for your scenario and your progress bar does not show at all?


Regards,
Boyan Dimitrov
Telerik

 

 

[richard]

That is correct ** it did not work **

[Boyan Dimitrov]

Hello Richard,

I am afraid that I am not able to replicate the described issue. We would need a sample project that replicates this problem so we can investigate this issue at our end and provide you a proper solution for your case. Since this is a forum thread you will not be able to attach any files so I would ask you to open a support thread and attach a sample project or simply a page that replicates the described problem. Here you may find some instruction on how to isolate a problem in a runnable sample project.


Regards,
Boyan Dimitrov
Telerik