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So wierd... RadAjaxManager throwing error w/ MasterPages

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Ajax

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

Michael asked on 17 Apr 2011, 08:06 AM

Ok...

I stripped my code down to the bare minimum and it still is not working!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I am getting Error: i.get_postBackElement() is undefined

Get this, SAME code WORKS when I don't use a MasterPage. When I DO use a MasterPage, it's broken!!!

<%@ Master Language="C#" AutoEventWireup="true" CodeFile="MasterPage2.master.cs" Inherits="MasterPages_MasterPage2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

<asp:ContentPlaceHolder id="head" runat="server">

</asp:ContentPlaceHolder>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server" />

<div>

<asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server">

</asp:ContentPlaceHolder>

</div>

</form>

</body>

</html>

using System;

public partial class MasterPages_MasterPage2 : System.Web.UI.MasterPage

{

protected void Page_Load(object sender, EventArgs e)

{

}

And my aspx page:

<%@ Page Title="" Language="C#" MasterPageFile="~/MasterPages/MasterPage2.master" AutoEventWireup="true" CodeFile="Default3.aspx.cs" Inherits="Default3" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">

</asp:Content>

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<asp:LinkButton ID="lb1" runat="server" OnClick="lb1_Click" Text="push" />

<asp:Label ID="lbl1" runat="server" Text="test" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" EnableAJAX="true" UpdatePanelsRenderMode="Inline">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="lb1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="lbl1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

</asp:Content>

using System;

public partial class Default3 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void lb1_Click(object sender, EventArgs e)

{

lbl1.Text = "pushed";

}

The above doesn't work.

But this WORKS!

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<telerik:RadScriptManager ID="RadScriptManager1" runat="server" />

<asp:LinkButton ID="lb1" runat="server" OnClick="lb1_Click" Text="push" />

<asp:Label ID="lbl1" runat="server" Text="test" />

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" EnableAJAX="true" UpdatePanelsRenderMode="Inline">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="lb1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="lbl1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

</form>

</body>

</html>

using System;

public partial class Default2 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

protected void lb1_Click(object sender, EventArgs e)

{

lbl1.Text = "pushed";

}

What gives? :(

I have been using RadControls for many many years. The environment is Windows 7 using .Net 4 integrated mode.

6 Answers, 1 is accepted

answered on 21 Apr 2011, 08:33 AM

Hello,

To your questions:

Michael, currently RadControls for ASP.NET AJAX do not offer support for ClientIDMode different than AutoID. Since these are controls with complex hierarchies of child controls and templates, setting their ClientID mode to Static will break their functionality. Please note that Microsoft does not recommend setting ClientIDMode="Static" on pages which do contain dynamic controls.

Robert, there have been some incompatibilities between the RadControls suite and the AjaxControlToolkit which should not be present with the latest versions of both suites. With previous versions, some adjustments were needed, most of them are described in the following forum thread:
AJAX Control Toolkit Compatability

However, if compatibility problems persist on your side, I would advise you to open a formal support ticket and send a runnable sample of your configuration, we will adjust it to work without errors.

Best wishes,
Tsvetina
the Telerik team

Browse the vast support resources we have to jump start your development with RadControls for ASP.NET AJAX. See how to integrate our AJAX controls seamlessly in SharePoint 2007/2010 visiting our common SharePoint portal.

answered on 16 Jun 2013, 05:30 PM

Hi all,

I ran into the same problem. Same code not working in nested page, but worked without changes in a standard (non nested) page.

I found a workaround (for me), that could possibly give anybody a helping hand, when facing the same problem.

(My) conclusion:
I replaced every standard asp-control with its corresponding telerik version, which I defined as a trigger in RadAjaxManager.
e.g. asp:button into radButton, asp:DropDownList into radDropDownList ... etc...
After I replaced my controls, everything worked like expected, even within a nested page. I don't know exactly why, but perhaps the support has a guess to share with us?

Best regards
Oliver

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So wierd... RadAjaxManager throwing error w/ MasterPages

6 Answers, 1 is accepted