#2399: FCKEditor AJAX problem - WebForms.PageRequestManagerServerErrorException:
Status code 500
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Reporter: Pedantix | Owner:
Type: Bug | Status: new
Priority: Normal | Milestone:
Component: General | Version:
Keywords: |
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When FCKEditor appears on an aspx / ASP.Net page which also uses an
UpdatePanel, an error sometimes occurs on postback. The error text is as
follows:
WebForms.PageRequestManagerServerErrorException: Status code 500
The error occurs when the FCKEditor control has content rendered in HTML.
I found the following fix at ASP.Net's forum...
I resolved it by adding ValidateRequest="false" in the tag <%@ Page ...%>
The page declaration can be set as follows...
<%@ Page Language="VB" CodeFile="blah.aspx.vb" Inherits="blah"
ValidateRequest="false" %>
After a little delving, I've discovered "why" the ValidateRequest=False
trick works (for FCKEditor in an UpdatePanel). First of all, note the
following about ValidateRequest:
Request validation, a feature of ASP.NET since version 1.1, prevents the
server from accepting content containing un-encoded HTML. (from
http://www.asp.net/learn/whitepapers/request-validation/)
I found that if my FCKEditor contains HTML then it fails the postback.
I'm guessing that the FCKEditor does not pass "un-encoded HTML" back when
it postsback. When I remove the HTML content from my FCKEditor, the error
does not occur.
--
Ticket URL: <http://dev.fckeditor.net/ticket/2399>
FCKeditor <http://www.fckeditor.net/>
The text editor for Internet
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