Problem with Ajax.ActionLink

Question

i am reading the professional asp.net mvc book and implement the nerd Dinner example and when start to use Ajax :

<%: Ajax.ActionLink( "RSVP for this event", "Register", "RSVP", new { id=Model.DinnerID }, new AjaxOptions { UpdateTargetId="rsvpmsg" }) %> <% } %>

all right, but when click on "RSVP for this event" link the IE display error message :

"Sys is undefined"

and when click debug it refer to the line :

<a href="/RSVP/Register/4" onclick="Sys.Mvc.AsyncHyperlink.handleClick(this, new Sys.UI.DomEvent(event), { insertionMode: Sys.Mvc.InsertionMode.replace, updateTargetId: &#39;rsvpmsg&#39; });">RSVP for this event</a>

i know that "Sys" should be "System" but how to fix that .

thnks

Steve Michelotti · Accepted Answer · 2010-09-16 16:37:39Z

6

The error messages are correct. You need to make sure you're including the correct javascript files in your view:

<script src="/Scripts/MicrosoftAjax.js" type="text/javascript"></script> <script src="/Scripts/MicrosoftMvcAjax.js" type="text/javascript"></script>

answered Sep 16, 2010 at 16:37

Steve Michelotti

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2 Comments

Steve Michelotti Over a year ago

Just paste the 2 lines of code above onto your page. some people like to put it on the MasterPage so it's available for all views in the application.

intox Over a year ago

Excelent! It seems that Ajax.ActionLinks realisation no longer depends from jquery.unobstrusive-ajax.js

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