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find Rad ajax manager returns null
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Gokul Gokul
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Gokul Gokul asked on 29 Dec 2010, 04:39 AM
Hi there,
            $find("RadAjaxManager1") returns null particularly when call from modal pop up button click. but while call from page controls events it works. Thanks in advance

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Shinu
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answered on 29 Dec 2010, 06:59 AM
Hello Gokul,

I am not quite sure about your scenario. In normal scenario your code will work fine. In complex scenarios like masterpage,user control, a better approach is to use the "ClientID" with server tag.

Clientside:
var ajax = $find('<%=AjaxMgr.ClientID%>');

Please go through this documentation for more on RadAjaxManager Client object.

Regards,
Shinu.
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Gokul Gokul
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answered on 29 Dec 2010, 07:08 AM
Hi Shinu,
             I found the problem and rectify it. the solution is rad ajax manager can only be found at updated controls event fires. the other control events which is not in updated controls list returns null while $find("RadAjaxManager1").

Thanks for your reply...
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Dave
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answered on 06 Mar 2012, 07:03 PM
Gokul,

What was your solution to finding your RadAjaxManager instance using client-side code after being called from a modal pop up button click? I am running into the same problem you had. I use the $find method on the RadAjaxManager instance but it comes back null.

Thanks,
Dave
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Antonio Stoilkov
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answered on 09 Mar 2012, 12:16 PM
Hello Dave,

Based on your description is hard to determine what is causing the issue. You could try accessing the RadAjaxManager on the page by following the code shown below. Note that wrapping the JavaScript code in RadScriptBlock is required.
<telerik:RadScriptBlock runat="server">
    <script type="text/javascript">
        var ajaxManager;
        function pageLoad()
        {
            ajaxManager = $find("<%= RadAjaxManager.GetCurrent(Page).ClientID %>");               
        }
    </script>
</telerik:RadScriptBlock>

Greetings,
Antonio Stoilkov
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Lohith
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answered on 08 Nov 2012, 06:17 AM
I too was facing the issue. I had not OnclientClose method declare for windowsmanager but had not declared it. I was ignoring it. but other script that was trying to find the ctrl was also failing after that.  Though I did see the control in the DOM hierachy. 
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Daniel
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answered on 03 Jan 2013, 09:51 AM
I faced the same problem with Chrome and Firefox (works in IE).
The $find("radAjaxManager") works sometimes for the first event, but returns null on subsequent events.
The fix is to fallback to DOM if $find fails:

<telerik:RadCodeBlock runat="server">
   var ajaxManager = $find("<%=radAjaxManager.ClientID%>");
   if(!ajaxManager) ajaxManager = window.<%=radAjaxManager.ClientID%>;
   ajaxManager.ajaxRequestWithTarget("<%=myControl.UniqueID %>", "");
</telerik:RadCodeBlock>

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Vincy
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answered on 08 Aug 2013, 07:55 AM
Thanks
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Gokul Gokul
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Shinu
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Gokul Gokul
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Dave
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Antonio Stoilkov
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Lohith
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Daniel
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Vincy
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