AJAX :: UpdatePanel Not Working When Html Editor Is Inside

Feb 2, 2011

Really the title explains it. When i have an HTML Editor (from the AJAX Control Toolkit) inside an UpdatePanel, i get the error message: "Microsoft JScript runtime error: Invalid set operation on read-only property"

I was looking online and it appears it's because the editor uses javascript - is there any workaround for this?

My markup is pretty straight forward:

<%@
Page
Title=""
Language="VB"
MasterPageFile="~/Site.master"
AutoEventWireup="false"
CodeFile="post.aspx.vb"
Inherits="post"
%>
<%@
Register
Assembly="AjaxControlToolkit"
Namespace="AjaxControlToolkit"
TagPrefix="asp"
%>
<%@
Register
assembly="AjaxControlToolkit"
namespace="AjaxControlToolkit.HTMLEditor"
tagprefix="cc1"
%>
<asp:Content
ID="Content1"
ContentPlaceHolderID="HeadContent"
Runat="Server">
<link
rel="stylesheet"
href="../Styles/post.css"
/>
</asp:Content>
<asp:Content
ID="Content2"
ContentPlaceHolderID="MainContent"
Runat="Server">
<table
style="width:100%"><tr><td
valign="top"
style="text-align:left"><asp:Label
ID="forumNav"
runat="server"
Text="Label"
Font-Names="Calibri"
Font-Size="Small"
ForeColor="#333333"></asp:Label></td><td
valign="top"
style="text-align:right;"><asp:Hyperlink
ID="replyButton"
NavigateUrl="reply.aspx?postID="
runat="server"
Text="Reply"
CssClass="replyButton"></asp:HyperLink></td></tr></table>
<asp:Panel
ID="postContent"
runat="server">
</asp:Panel>
<asp:UpdatePanel
ID="ReplyPanel"
runat="server"
ChildrenAsTriggers="false"
UpdateMode="Conditional">
<ContentTemplate>
<center>
<asp:Label
ID="Label1"
runat="server"
Text=""></asp:Label>
</center>
<br
/>
<asp:Panel
ID="Panel1"
runat="server">
Reply:
<cc1:Editor
ID="Editor1"
runat="server"
/>
<center>
<asp:Button
ID="Button1"
runat="server"
Text="Post
Reply"
/>
</center>
</asp:Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger
ControlID="Button1"
EventName="Click"
/>
</Triggers>
</asp:UpdatePanel>
<asp:UpdateProgress
ID="ReplyProgress"
runat="server"
AssociatedUpdatePanelID="ReplyPanel"
>
<ProgressTemplate>
<center>
<asp:Image
ID="loading"
runat="server"
ImageUrl="~/Images/ajax-loader
(1).gif"/>
Sending reply...</center>
</ProgressTemplate>
</asp:UpdateProgress>
</asp:Content>
 

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