find Rad ajax manager returns null

[Gokul Gokul]

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

[Shinu]

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.

[Gokul Gokul]

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...

[Dave]

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

[Antonio Stoilkov]

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
the Telerik team

[Lohith]

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. 

[Daniel]

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>

[Vincy]

Thanks