Ok, here is what I'm doing:

I have a frameset with 3 frames (left,top,main), the main frame  uses a masterpage, in the aspx page inside the masterpage I have 3 textboxes, 3 required field validators , 3 validatorcalloutextender and a button, when I hit the aspx button, the 3 validatorcalloutextenders works fine, I pop-up a message box in the code-behind inside the button click event and when the page comes back from the post back I get the following error:

Microsoft JScript runtime error: Sys.ArgumentTypeException: Object of type 'String' cannot be converted to type 'Function'.
Parameter name: method

At the webresource.axd, the debugger breaks into this function:

function Sys$Component$endUpdate() {

this._updating = false;

if (!this._initialized) this.initialize();

this.updated();

}

 Obviously its a bug because its in the webresource.axd, I'm I wrong?

Thanks for the help.

I got exactly the same issue and same exception. I got the CalloutExtender attached to a RequiredExpressionValidator which validates a TexBox which is in an UpdatePanel. Another TextBox in the same UpdatePanel has a PopupExtender with a calendar and if I e.g. switch the month, so that a postback occurs, it bombs out with the above described exception.

In code behind - are you registering the script for the button through the SCM and not using the Page.ClientScript.Register..?  The new version requires scripts to be loaded into the SCM  see the migration doc for more info on how to do this as well as the documentation site for ajax

Well, I did not add any Javascript myself at all, these are just a few components from the newest Ajax Framework and the Toolkit thrown together.

jodywbcb:

In code behind - are you registering the script for the button through the SCM and not using the Page.ClientScript.Register..?  The new version requires scripts to be loaded into the SCM  see the migration doc for more info on how to do this as well as the documentation site for ajax

Just trying to use the validatorcalloutextender, theres no need to register a script to the SCM 

And it is easy to reproduce, just take a form like this:

    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="AtlasScriptManager" runat="server" EnablePartialRendering="true" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <asp:TextBox ID="TextBox1" runat="server" />
                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="TextBox1" runat="server" ErrorMessage="RequiredFieldValidator"></asp:RequiredFieldValidator>
                <ajaxToolkit:ValidatorCalloutExtender ID="RFV1Extender" runat="server" TargetControlID="RequiredFieldValidator1" />
                <br />
                <asp:TextBox ID="TextBox2" runat="server" />
                <br />
                <asp:Button ID="Button1" runat="server" Text="Button" />
            </ContentTemplate>
        </asp:UpdatePanel>    
    </div>
    </form>

Start with debug, enter something in TextBox1 and press the button.

That was just an example to reproduce the error , what good would a form like that do?

The error occurs on any kind of postback, so e.g. a popup calendar on a month change, a postback from a TextBox, and so forth. If the solution is to not produce a postback inside an UpdatePanel, then you can get rid of the UpdatePanel, too.

Thanks for pointing this out I'll take a look at it tonight and see if I can't get this fixed for the next release.

Hi!

I has the same problem. How i can resolve one?

ASP.NET 2.0