Hi,
I have recently upgraded my .net 1.1 project to .net 3.5 and replaced RADControls for ASP with RADControls for ASP.NET AJAX.
I get the following Javascript error "Sys.Webforms.PageRequestManager is null or not an object" on the page.
I have tried the following..
- Verify that the Web.Config is setup correctly.(http://www.asp.net/AJAX/Documentation/Live/ConfiguringASPNETAJAX.aspx)
- There is no xHtmlConformance element in Web.Config.
When I view the source code for the aspx page, I don't see the element Sys.WebForms.PageRequestManager anywhere in the code.
Please suggest if I am missing something on the page which generates the Sys.WebForms.PageRequestManager object.
Thanks in advance....
5 Answers, 1 is accepted
Can you confirm that you added ScriptManager control on the problematic page as explained here?
Check it out and let me know how it goes.
Best wishes,
Iana
the Telerik team
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Rank 1
I have added scriptmanager on the page as given below.
<body style="MARGIN: 0px; WIDTH: 100%; HEIGHT: 100%" scroll="no">
<form id="frmEPlan" style="MARGIN: 0px; WIDTH: 100%; HEIGHT: 100%" method="post" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" LoadScriptsBeforeUI="true"></asp:ScriptManager>
......
From the provided information, for me it seems that you configured you web page/site properly and I am not able to see what could have caused the error. Therefore I suggest that you open a formal support ticket and send me a sample illustrating the issue so I could perform further investigations and testing.
Best wishes,
Iana
the Telerik team
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Rank 1
I am facing same issue and not getting solution anywhere. Is there any updated post available regarding this?
I have already read "Eilon Lipton's Blog" and is of no use for me.
My scenario:
I have a grid which has a link in header having name "Add New". When user clicks on this link, new row gets added in the grid. I am Ajaxifying my grid for this functionality.
Various things I tried from blogs are:
1. EnableEventValidation="false" in page directive
2.EnablePartialRendering="true" and LoadScriptsBeforeUI="true" in asp:ScriptManager.
One strange thing I observed is I get above error if I use virtual directory for my application but if I use 'Visual Studio Development Server', the error won't occurs in development environment. However, Sys.Webforms.PageRequestManagerParsorErrorException occurs sometimes on clicking of add new link on staging environment.
When an error exception of time Sys.Webforms.PageRequestManagerParsorErrorException is thrown, this most probable reasons that you are using Trial version of the controls and Telerik trial message pops up, or there is some server errors on the page. Therefore I suggest that you try disabling ajax and, debug the project and see if any conflicts arise.
Let me know how it goes.
Greetings,
Iana
the Telerik team
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