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JavaScript Error on MouseOver event of RadComboBox withing RadGrid

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ComboBox

This is a migrated thread and some comments may be shown as answers.

Nhilesh asked on 16 Mar 2009, 07:38 AM

Hello,

We are using the RadCombobox within RadGrid, and constantly keep getting the JavaScript error(s) whenever the mouse hovers on any of the RadCombobox within RadGrid on various pages.

The JavaScript Message keeps saying as under:

Line: 7
Char: 73372
Error: Object doesn't support this property or method.
Code: 0

On deep diging, I found the error is caused in following thing..

/* START MicrosoftAjax.js */

//----------------------------------------------------------

//----------------------------------------------------------
....................some javascript.....................
var d=a.getClientRects();
....................some more javascript.....................
/* END MicrosoftAjax.js */

Please let me know the best possible solution.

Regards,
Nhilesh Baua

7 Answers, 1 is accepted

answered on 18 Mar 2009, 02:01 PM

Hi Nhilesh,

This is a bug in the ASP.NET AJAX Library - please read more about it here.

Apart from changing your approach, so that the ComboBox in the Grid is not disabled, you could use the following workaround: add the following JavaScript code to your page, after the <FORM> element's closing tag:

    
            <script type="text/javascript">  
        
                var oldDomEvent=Sys.UI.DomEvent;  
        
                Sys.UI.DomEvent=function(rawEvent){if(rawEvent.srcElement&&typeof(rawEvent.srcElement.getClientRects)=="undefined")return;  
        
                var evt=new oldDomEvent(rawEvent);for(var o in evt)this[o]=evt[o];}  
        
                for(var o in oldDomEvent)Sys.UI.DomEvent[o]=oldDomEvent[o];  
        
            </script>

Regards,
Simon
the Telerik team

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answered on 19 Mar 2009, 07:19 AM

Hi Simon,

Thanks for your reply.

I tried with the solution you've just suggested on one of the pages we have
Now I am getting the following error, [however the frequancy of this error is low, still I want my code to be error free.]

Line: 4291 [Which never existed]
Char: 1
Error: 'tagName' is null or not an object.
Code: 0

For your information;
I have created a user control and I do not have <form> tags embbaded in control's markup,
We want to integrate this user control in MOSS as Smart part.
We are using dataItem.getElementsByTagName() in RowSelected and RowDeselected events for selecting/deselecting the rows
As per your solution I have still added the code [Script] as suggested at the end of my mark-up.

Thanks in advance,
Nhilesh Baua.