AJAX :: AutoComplete Extender Using Pagemethod Resulting In 401.1

May 6, 2010

We have used the ajax toolkit auto complete extender in an intranet app which uses Windows authentication. The auto complete uses a static page method in the page code behind to get the results. Even though the page containing the auto complete is authenticated by the server and the asp.net session id set in the cookie, the initial requests from the auto complete result in 401.1 and after few attempts result in a 200. This irritates the users of the app. Also later on there are 401.1 happening intermittently among the various 200 there by affecting the responses.

I have verified these responses by using Microsoft Network Monitor,Fiddler and Firebug. Also these entries are present in IIS logs. I tried to implement the same with a script service but that too gives same issues. Our site has lots of ajax features and controls and everything is working fine, only this issue is there.

<asp:ScriptManager ID="smHome" runat="server" EnablePageMethods="true" AsyncPostBackTimeout="600"> </asp:ScriptManager>
<CustomControls:StyledAutoCompleteExtender runat="server" ID="acAssociateSmartSearch"
TargetControlID="txtSmartSrch" ServiceMethod="GetAssociateSmartSearchList" MinimumPrefixLength="2"
CompletionListCssClass="sscompletionListElement" CompletionListItemCssClass="sslistItem"
CompletionListHighlightedItemCssClass="sshighlightedListItem" CompletionSetCount="10"
CompletionInterval="500" EnableCaching="true">

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