problematic data in sqldatasource

I am using VS2005 ASP.NET 2.0 SQL Server 2000.
In my database I have a record that contain a text field that contains the value: "  Our Reference: <<ID>>/<<CODE>>"
When I load this record to my gridview through the sqldatasource I get it OK but when I want to update the record or insert a new line I get the following error:
A potentially dangerous Request.Form value was detected from the client (GVEmailTemplates$ctl02$BODYselect="...ference: <<ID>>/<<CODE>>
How can I manage a problematic data?
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you may add
to your aspx page in the page directive.
like the following example.

<%@ Page Language="VB"  ValidateRequest="false" AutoEventWireup="false" CodeFile="codefile.vb" Inherits="code" %>

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ANAT2403Author Commented:
excellent, wonderful,  This question was deleted today after 3 weeks that nobody looked at it and I tried again and
you solved it. I have no words to thank you.
Can you please take a look at the following problem that nobody manage to solve?
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