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ASP.NET Ajax and the Ajax Control Toolkit including the Accordion, Calendar, Modal Popup, and more

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'Sys' is undefined.

Created by mbettesworth. Latest Post by Thomas Thayil, Jul 24, 2009 11:40 AM.

4994587 201

Could not load file or assembly 'Microsoft.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Created by Peter Smith. Latest Post by Akter-Uddin, Sep 22, 2011 03:00 PM.

4340565 60

Error on ajax.asp.net - sys is undefined

Created by dudedude. Latest Post by Sandy1234, Apr 30, 2009 04:57 AM.

2853467 80

Sys.Webforms.PageRequestManagerServerErrorException actual cause (related RoleManager issue)

Created by Rama Krishna. Latest Post by Abhishek336699, Aug 30, 2016 10:39 AM.

2126708 53

Could not load file or assembly System.Web.Extensions

Created by mychucky. Latest Post by babuji_godem, Feb 17, 2010 11:01 PM.

2038718 47

Where is System.Web.Extensions.dll now? Fails on remote hosted server.

Created by pkellner. Latest Post by DeepAtNobleRiver, Sep 02, 2010 09:18 AM.

1755104 36

Could not load file or assembly 'System.Web.Extensions

Created by antonyliu2002. Latest Post by vinothharshad, Aug 22, 2013 08:56 AM.

1559686 27

Could not load file or assembly 'System.Web.Extensions, Version=3.5.0.0

Created by Johnson2007. Latest Post by agargye, Mar 17, 2009 03:28 PM.

1536828 27

Sys.WebForms.PageRequestManagerParserErrorException

Created by jackh. Latest Post by mathew7535, Sep 23, 2009 12:18 PM.

1396684 87

How to resolve "Sys.WebForms.PageRequestManagerParserErrorException" issue

Created by asimiq80. Latest Post by Reyu99, May 31, 2012 03:28 PM.

1270332 90

Could not load file or assembly 'AjaxControlToolkit' or one of its dependencies. Access is denied.

Created by john@seedprod.com. Latest Post by Crazytw, Jan 30, 2014 10:36 AM.

1209793 30

File Upload Control is not working in Update Panel

Created by kaushalparik27. Latest Post by ShadowDanser, Dec 29, 2010 03:44 PM.

1034778 27

Ajax client-side framework failed to load

Created by craigbtx. Latest Post by souren.hazra, Aug 26, 2012 02:00 PM.

892513 27

Could not load type 'System.Web.UI.ScriptReferenceBase' from assembly 'System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

Created by inmykingdom. Latest Post by sandroagboka@hotmail.com, Sep 25, 2012 01:19 PM.

852620 32

TabContainer and ActiveTabChanged

Created by topo13. Latest Post by aspdotnetlearning, Jan 29, 2014 10:17 PM.

832232 44

PageMethods is undefined

Created by puterart. Latest Post by rmdw, Jan 04, 2011 03:42 PM.

788809 33

WebForms.PageRequestManagerServerErrorException: Status code 500

Created by ssanand. Latest Post by bk.komal, Jan 14, 2011 09:19 AM.

784569 39

Unknown server tag

Created by deDogs. Latest Post by chetan.sarode, Apr 12, 2010 11:05 PM.

758458 12

What's up with UpdatePanels and how come nothing works? Or: A brief explanation of how UpdatePanel works by the guy who wrote the feature. (Long!)

Created by Eilon. Latest Post by raja.krish, Apr 18, 2007 12:51 PM.

698985 46

How do I get the CalendarExtender to show over a dropdown?

Created by AirMaro. Latest Post by andymobile, Aug 13, 2010 09:43 AM.

656669 33
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