Any of my existing AJAX pages that have an Extender control (Calendar, filtered text box, etc) come up with an error saying:

The control with ID 'CalendarExtender1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.

If I take the CalendarExtender1 off of the page, the page loads fine.  I have a few UpdatePanels that work fine when that control is not on my page.

 Any ideas on how I can fix this error?  Is is my install?

Thanks,

Nathan

Hi,

where are you declaring the Calendar extender in the page?

Yeah...just make sure the ScriptManager is at the top of the page, just after the form declaration.  If you are using MasterPages and you have AJAX control in the master page, then you will need to define the ScriptManager in the master page.

Jason

You can declare a ScriptManager in a content page as follows:

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">

<asp:ScriptManager ID="ScriptManager1" runat="server">

</asp:ScriptManager>

<asp:UpdatePanel ID="UpdatePanel1" runat="server">

<ContentTemplate>

<asp:Button ID="Button1" runat="server" Text="Button" />

ConfirmText="" Enabled="True" TargetControlID="Button1">

</cc1:ConfirmButtonExtender>

</ContentTemplate>

</asp:UpdatePanel>

<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>

Enabled="True" TargetControlID="TextBox1">

</asp:Content>

 Here is what I'm saying.

 We have an application working properly in VS2005 and NET Framework 2.0

I installed NET Framework 3.5 and VS 2008 (made a copy of my application first) and then run it. On a page that worked previously I'm now getting this error:

Server Error in '/FCAdmin' Application.

---

The control with ID 'CalendarExtender1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.

[InvalidOperationException: The control with ID 'CalendarExtender1' requires a ScriptManager on the page. The ScriptManager must appear before any controls that need it.]
   System.Web.UI.ExtenderControl.get_ScriptManager() +198
   System.Web.UI.ExtenderControl.RegisterWithScriptManager() +151
   System.Web.UI.ExtenderControl.OnPreRender(EventArgs e) +17
   AjaxControlToolkit.ExtenderControlBase.OnPreRender(EventArgs e) in d:\E\AjaxControlToolkit\Release\AjaxControlToolkit\ExtenderBase\ExtenderControlBase.cs:391
   System.Web.UI.Control.PreRenderRecursiveInternal() +86
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Control.PreRenderRecursiveInternal() +170
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2041

 The page is quite complex, has several user controls, GridView and several FormViews. Initially page loads and I noticed that grid sorting, for example, is done much faster and without re-loading the whole page (no UpdatePanels on this page).

The page begins with :

<%@ Page Language="C#" AutoEventWireup="false" MaintainScrollPositionOnPostback="true"
    MasterPageFile="~/admin.master" CodeFile="Registration.aspx.cs" Trace="false" EnableEventValidation="false"
    Title="FC Admin - Registration" Theme="Profesional" Inherits="Registration_Form" %>
<%@ Register src="../../UCD/Tags.ascx" TagName="Tags" TagPrefix="uc5" %>
<%@ Register src="../../UCD/AtHomeManMatch.ascx" TagName="AtHomeManMatch" TagPrefix="uc4" %>
<%@ Register src="../../UCD/FriendsAvailbility.ascx" TagName="FriendsAvailbility"
    TagPrefix="uc3" %>
<%@ Register src="../../UCD/VFriendsAtHAvailbility.ascx" TagName="VFriendsAtHAvailbility"
    TagPrefix="uc2" %>
<%@ Register Assembly="SqlWhereBuilder" Namespace="UNLV.IAP.WebControls" TagPrefix="cc2" %>
<%@ Register src="../UCD/DateCombo.ascx" TagName="DateCombo" TagPrefix="uc1" %>
<%@ Register TagPrefix="Custom" Assembly="AutoSuggestBox" Namespace="ASB" %>
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="ajax" %>

<asp:Content ContentPlaceHolderID="ContentPlaceHolder1" ID="Registrtration" runat="server">
<asp:ScriptManager EnablePageMethods="true" ID="scriptManager"
        EnablePartialRendering="true" runat="server"
        LoadScriptsBeforeUI="false"></asp:ScriptManager>
    <div>       
        <table>
            <tr>
                <td valign="top" align="center" style="width: 696px;padding-top:15px;">
               
<div style="text-align: left;">
<asp:TextBox ID="search" Width="150px" OnPreRender="SearchPrerender" runat="server" />&nbsp;<asp:Button ID="search_go"  BorderWidth="2" BorderStyle="Groove" Text="GO" OnClick="DoSearch" runat="server" EnableViewState="False" CausesValidation="False" />
<span style="margin-left:125px">
<asp:ImageButton ImageUrl="../../images/id_card_view.png" ID="show_all" OnClick="RefreshMainGrid" runat="server" EnableViewState="False" CausesValidation="False" CssClass="peopleVNavIcon" AlternateText="Show All Records" ToolTip="Show All Records" />
<%--<a href="CreatePerson.aspx"><img alt="AddPerson" class="peopleVNavIcon" title="Add a New Person" src="../../images/id_card_new.gif" /></a>
--%>
<img   src="" id="imgRecycle" alt="Recycle" runat="server" enableviewstate="false" title="Go to Recycling Bin" visible="false" class="peopleVNavIcon" />
</span>


<% if (clseditmode.editmode != true){ %>

What can we do to fix the problem? I do wish to use the new Framework and VS2008. 

Hi everybody,

I fixed the problem by installing new version of AJAX toolkit from http://www.codeplex.com/AtlasControlToolkit/Release/ProjectReleases.aspx?ReleaseId=11121

Interesting, that the site still has Atlas in it :)

 This is also an important link

http://msdn.microsoft.com/en-us/library/bb907623.aspx

Thanks for posting this fix. It worked for me too.

I downloaded the 3.5 version everything works like it did before the *upgrade* :)