CollapsiblePanelExtender and Null error

Question

User-130623335 posted

We are using CollasiblePanelExtender Ajax control.  When opening and closing panel it makes a call to server and puts a value in Session.  After about the second click we see this error "AjaxControlToolkit.ControlBase.onsubmitCollection.length is null or not an object."........also error appears spradically when updating.........users say they can update data a field box at a time and then hit update button with no error.........

Also this only happens on our Prod box and no other environment.....Its a Intranet site with a small user base of 50-100 users.......

Any help with direction of how to troubleshoot this problem would be appreciated.

 

thanks

Answer 1

User1414178881 posted

It's hard to know,please tell us what version of the Ajaxtoolkit do you use? Do you have the latest version? Can you post the html?

Answer 2

User-130623335 posted

Here is some more info:

ajax Toolkit Version = 3.0.30512.17815

AjaxControlToolkit.WCSFExtensions version = 2.0.2

What is odd is it will open on click, close on second click, and then 3rd time it will display the error.......I am loading a progress bar while this action takes place.....code is below........but why does it work in 3 envrionments and not this one......I compared machine.config and they are the same.......here is the Ajax code its failing on

if(!Sys.WebForms.PageRequestManager.getInstance().get_isInAsyncPostBack())for(var a=0;aAjaxControlToolkit.ControlBase.onsubmitCollection.length;a++)

 

 

sys.WebForms.PageRequestManager.getInstance().add_initializeRequest(InitializeRequestHandler);

function

InitializeRequestHandler(sender, eventArgs) { 

SetProgressDiv();

document.getElementById(

document.getElementById(

}

Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);

'<%=uxProgress.ClientID%>').style.display = 'block'; 'Container').style.cursor = 'wait';

function

document.getElementById(

document.getElementById(

}

EndRequestHandler(sender, eventArgs) {'<%=uxProgress.ClientID%>').style.display = 'none';'Container').style.cursor = '';

 

 

Answer 3

User1414178881 posted

Sorry for late responding,Can you re-post the html so we can check it out? it's not readable as you can see.

Answer 4

User-130623335 posted

I about ready to post.  We found the problem to not be Ajax but our WAN compression software 9 (Riverbed Steelhead) that was causing the problem.  We host our production server off-site and the Riverbed Steelhead was added about 3 weeks ago when the error starting to occur.  So hopefully this helps anyone else out there.

 

thanks

Answer 5

User1840005573 posted

Hi
We see the same symptoms with a web application. We also have Riverbeds between sites. 

How did you trace it down to the Riberbeds?

Thanks.