AJAX :: Cascading Dropdown Not Calling Webservice - Super Simple Example Just Not Working

May 25, 2010

I ultimately need to show countries in one drop down then states/provinces drop down of the previously selected drop down. I'm sure everyone has seen this many times. My page shows the countries but does not show values in the province/states drop down. It's as if the webservice is never run. I've tried removing and adding the ajaxtoolkit reference. The tableadaters run simple working sql code. I'm really at a lose here.

default.aspx:
...
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
...
<body>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<%--Dropdown to display countries--%>
Country:<asp:DropDownList ID="ddlCountries" runat="server" DataSourceID="ods_Countries"
DataTextField="country" DataValueField="abbreviation">
</asp:DropDownList>
<%--data source for the country drop down list--%>
<asp:ObjectDataSource ID="ods_Countries" runat="server" OldValuesParameterFormatString="original_{0}"
SelectMethod="GetAllCountries" TypeName="countryDataSetTableAdapters.CountriesTableAdapter">
</asp:ObjectDataSource>....................................

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