Here is what I’m testing with, I have the AJAX toolkit test module from AdefWebserver, then I just copied the example from the AJAX toolkit project for the ValidatorCallout. the AJAX from AdefWebservers part works fine, and when I leave the fields blank and hit submit it does the post back and displays “Thanks , we'll give you a call at .” and if I fill in the fields it will show the values entered in the fields. However it doesn’t check the phone number field to see if it’s actually a phone number. Here are my code files.

 
First the ASCX

 
<%@ Control Language="VB" Inherits="BRAssociates.Modules.AJAXTest.View" CodeFile="BRAssociates.AJAXTest.View.ascx.vb" AutoEventWireup="true" %>

<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>

<style>

.PanelExtender

{

    position: relative;

}

</style>

<br />

<table>

    <tr>

        <td nowrap="noWrap" valign="top">

            <strong>

                <asp:Panel ID="pnlUsers" runat="server" Height="50px" Width="125px" CssClass="PanelExtender">

                    <Strong>Enter User:</Strong>

                    <asp:TextBox ID="MessageTextBox" runat="server" Width="200" AutoCompleteType="Disabled" />

                    <asp:Button ID="btnUser" runat="server" Text="Select User" />

                    <asp:UpdatePanel ID="UpdatePanel2" runat="server">

                        <ContentTemplate>

                            <asp:RadioButtonList ID="RadioButtonList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="RadioButtonList1_SelectedIndexChanged"

                                Style="border: 1px outset white; width: 200px" BackColor="white">

                                <asp:ListItem Text="Shaun Walker" />

                                <asp:ListItem Text="Joe Brinkman" />

                                <asp:ListItem Text="Nik Kalyani" />

                                <asp:ListItem Text="Scott Willhite" />

                                <asp:ListItem Text="Cancel" Value="" />

                            </asp:RadioButtonList>

                        </ContentTemplate>

                    </asp:UpdatePanel>

                    <ajaxToolkit:PopupControlExtender ID="PopupControlExtender2" runat="server" TargetControlID="MessageTextBox"

                        PopupControlID="UpdatePanel2" CommitProperty="value" Position="Bottom" CommitScript="e.value;" />

                </asp:Panel>

                <br />

            </strong>

        </td>

    </tr>

    <tr>  

        <td nowrap="noWrap" valign="top">

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

                <ContentTemplate>

                    <strong>Selected:</strong>

                    <asp:Label ID="lblSelectedUser" runat="server"></asp:Label>

                </ContentTemplate>

                <Triggers>

                    <asp:AsyncPostBackTrigger ControlID="btnUser" EventName="Click" />

                </Triggers>

            </asp:UpdatePanel>

        </td>

    </tr>

</table>

<br />

<br />

    <div class="demoarea">

        <div class="demoheading">ValidatorCallout Demonstration</div>

        <table>

            <tr>

                <td>Name:</td>

                <td><asp:TextBox runat="server" ID="NameTextBox"

                    BorderStyle="solid" BorderWidth="1px" BorderColor="#a9a9a9" /></td>

            </tr>

            <tr>

                <td>Phone Number:</td>

                <td><asp:TextBox runat="server" ID="PhoneNumberTextBox"

                    BorderStyle="solid" BorderWidth="1px" BorderColor="#a9a9a9" /></td>

            </tr>

        </table>

        <br />

        <asp:RequiredFieldValidator runat="server" ID="NReq"

            ControlToValidate="NameTextBox"

            Display="None"

            ErrorMessage="<b>Required Field Missing</b><br />A name is required." />

        <ajaxToolkit:ValidatorCalloutExtender runat="Server" ID="NReqE"

            TargetControlID="NReq"

            HighlightCssClass="validatorCalloutHighlight" />

        <asp:RequiredFieldValidator runat="server" ID="PNReq"

            ControlToValidate="PhoneNumberTextBox"

            Display="None"

            ErrorMessage="<b>Required Field Missing</b><br />A phone number is required.<div style='margin-top:5px;padding:5px;border:1px solid #e9e9e9;background-color:white;'><b>Other Options:</b><br /><a href=' ll give you a call at {1}.", NameTextBox.Text, PhoneNumberTextBox.Text)

        End Sub

    End Class

End Namespace

Any thoughts or suggestions would be appreciated.

Thanks, Nathan Rover

I'm going on 4 weeks now and I'm still not having any luck with this control. Here is an updated version of my code. I've striped out some of the unnecessary parts any suggestions?

<%@ Control Language="VB" Inherits="BRAssociates.Modules.AJAXTest.View" CodeFile="BRAssociates.AJAXTest.View.ascx.vb" AutoEventWireup="false" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>

<style>
.PanelExtender
{
    position: relative;
}
</style>

<asp:MultiView ID="MultiView1" runat="server" ActiveViewIndex="0">
    <asp:View ID="View1" runat="server">
        <asp:Panel ID="pnl_Form" runat="server">
            <table>
                <tr>
                    <td>Name:</td>
                    <td><asp:TextBox runat="server" ID="NameTextBox"
                        BorderStyle="solid" BorderWidth="1px" BorderColor="#a9a9a9" /></td>
                </tr>
                <tr>
                    <td>Phone Number:</td>
                    <td><asp:TextBox runat="server" ID="PhoneNumberTextBox"
                        BorderStyle="solid" BorderWidth="1px" BorderColor="#a9a9a9" /></td>
                </tr>
                <tr>
                    <td></td>
                    <td></td>
                </tr>
            </table>
        </asp:Panel>
       
        <asp:LinkButton ID="Button1" runat="server" Text="Submit" />

        <asp:RequiredFieldValidator runat="server" ID="NReq"
            ControlToValidate="NameTextBox"
            Display="none"
            ErrorMessage="<b>Required Field Missing</b><br />A name is required." />
        <ajaxToolkit:ValidatorCalloutExtender runat="Server" ID="NReqE"
            TargetControlID="NReq"
            HighlightCssClass="validatorCalloutHighlight" />
           
        <asp:RequiredFieldValidator runat="server" ID="PNReq"
            ControlToValidate="PhoneNumberTextBox"
            Display="none"
            ErrorMessage="<b>Required Field Missing</b><br />A phone number is required." />
        <ajaxToolkit:ValidatorCalloutExtender runat="Server" ID="PNReqE"
            TargetControlID="PNReq"
            HighlightCssClass="validatorCalloutHighlight"
            Width="350px" />
           
        <asp:RegularExpressionValidator runat="server" ID="PNRegEx"
            ControlToValidate="PhoneNumberTextBox"
            Display="none"
            ValidationExpression="((\(\d{3}\) ?)|(\d{3}-))?\d{3}-\d{4}"
            ErrorMessage="<b>Invalid Field</b><br />Please enter a phone number in the format:<br />(###) ###-####" />
        <ajaxToolkit:ValidatorCalloutExtender runat="Server" ID="PNReqEx"
            TargetControlID="PNRegEx"
            HighlightCssClass="validatorCalloutHighlight" />
        

        <br /><br />

        <asp:Label ID="lblMessage" runat="server" />
    </asp:View>
</asp:MultiView>

Imports DotNetNuke
Imports System.Web.UI
Imports System.Collections.Generic
Imports System.Reflection
Imports DotNetNuke.Entities.Modules

Namespace BRAssociates.Modules.AJAXTest
    Partial Class View
        Inherits Entities.Modules.PortalModuleBase

        Protected Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
            Try
                If DotNetNuke.Framework.AJAX.IsInstalled Then
                    DotNetNuke.Framework.AJAX.RegisterScriptManager()
                    'DotNetNuke.Framework.AJAX.WrapUpdatePanelControl(pnlTest, True)
                    'DotNetNuke.Framework.AJAX.RegisterPostBackControl(Button1)
                End If
            Catch exc As Exception        'Module failed to load
                ProcessModuleLoadException(Me, exc)
            End Try
        End Sub

        Protected Sub Button1_OnClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
            lblMessage.Text = String.Format("Thanks {0}, we'll give you a call at {1}.", NameTextBox.Text, PhoneNumberTextBox.Text)
        End Sub

    End Class
End Namespace