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BOOK: ASP.NET AJAX Programmer's Reference : with ASP.NET 2.0 or ASP.NET 3.5 ISBN: 978-0-470-10998-4
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Old July 26th, 2010, 11:25 AM
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Default Ajax ComboBox not displaying item list correctly

I'm using ASP VB .net 2008 and am just now venturing into the world of Ajax. I've tried a few different controls and they are working great. But, the ComboBox is giving me problems.

When it is first rendered it looks fine - pretty much like a standard DropDownList. But, when I click the down arrow to expand the list, the list is not connected to the original box - it shows up at the bottom of the page, and depending upon where the page is scrolled will show up only partially or not at all.

Hope that makes sense - sorry I don't have a screen scraper so I can show the behavior.

I've done something wrong, just don't know what - - Any Ideas??


Here is code --

HTML Code:
       <td class="cells1" valign="top">
             <asp:Label ID="lblRace" runat="server" CssClass="caption1" Width="41px" Height="6px">Race</asp:Label>
     <td class="cells1" style="width: 19px">                           
       <asp:ComboBox ID="cmbRace" runat="server" AutoCompleteMode="SuggestAppend"  
                                BorderStyle="Solid" DropDownStyle="DropDown" AutoPostBack="true"  
                                <asp:ListItem Value="0">Yes</asp:ListItem>
                                <asp:ListItem Value="1">No</asp:ListItem>
                                <asp:ListItem Value="2">Maybe</asp:ListItem>
                                <asp:ListItem Value="3">I don not know</asp:ListItem>
  <td class="cells1" valign="bottom">
          <asp:TextBox ID="txtOtherRace" TabIndex="18" runat="server" CssClass="value1" Width="453px"
                                Height="22px" MaxLength="50" Visible="False"></asp:TextBox>

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