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PageRequestManager is null (Hyperlink Manager dialog)

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Galina
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Galina asked on 09 Sep 2011, 09:46 PM
I am using Editor (RadControls for Asp.net Ajax q2 2011) in Visial Studio 2005 project.
I have RadScriptManager as very first control on the page and RadEditor after it.
When i select some text and click HyperLink Manager button, i get Hyperlink dialog and after this popup Error (line 1093, Sys.WebForms.PageRequestManager is null or not an object.

thanks
Galina

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Rumen
Telerik team
answered on 12 Sep 2011, 02:31 PM
Hello Galina,

Please, open the web.config file and look for this line:

<xhtmlConformance mode="Legacy"/>

The xhtmlConformance element is usually added when an application is migrated from VS 2003 and unfortunately it is not compatible with the ASP.NET AJAX extensions (see http://weblogs.asp.net/scottgu/archive/2006/12/10/gotcha-don-t-use-xhtmlconformance-mode-legacy-with-asp-net-ajax.aspx). Remove it and see if the dialogs problem is fixed.

All the best,
Rumen
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