Having problems with values and drop down lists

Hello Experts:

I previously had some help with getting a value of a drop down list when a datagrid is edited.  Here is the code I ended up using that works fine inside my datagrid:

<asp:dropdownlist id="ddlAppt" style="Z-INDEX: 139; LEFT: 536px; POSITION: absolute; TOP: 232px" Width="152px"
Runat="server" DataTextField="Appt" DataValueField="Appt" SelectedIndex='<% #DgDD5GetIDX(Container.DataItem("Appt")) %>'>
<asp:ListItem Value=' ' />
<asp:ListItem Value='Yes' />
<asp:Listitem Value='No' />
</asp:dropdownlist>

code-behind:

Function DgDD5GetIDX(ByVal Val As Object) As Integer
        If Not (Val Is Nothing) Then
            Select Case Val
                Case "Yes"
                    Return 1
                Case "No"
                    Return 2
                Case Else
                    Return 0
            End Select
        Else
            Return 0
        End If
    End Function

This is just a plain form I use for user input to a data table in sql.  This isn't in use inside a datagrid so I'm sure it needs some changing to work on a plain form.
This is the error I get:

Compiler Error Message: BC30456: 'DataItem' is not a member of 'System.Web.UI.Control'.

Source Error:

Line 39:       tabIndex="6" runat="server"></asp:textbox><asp:textbox id="TextBoxInterested" style="Z-INDEX: 107; LEFT: 208px; POSITION: absolute; TOP: 296px"
Line 40:       tabIndex="5" runat="server"></asp:textbox>
Line 41:       <asp:dropdownlist id="ddlSold" style="Z-INDEX: 106; LEFT: 536px; POSITION: absolute; TOP: 328px" tabIndex="15"
Line 42:       runat="server" Width="152px" SelectedIndex='<% #DgDD1GetIDX(Container.DataItem("Sold")) %>'>
Line 43:       <asp:ListItem Value=' ' />

Source File: c:\inetpub\wwwroot\SLN\WebForm1.aspx    Line: 41

So I just want to see the value of the drop down list when I record is retrieved into this form.  It has 5 drop down lists in all.  They all only have 2 - 3 selections, so the person who originally helped me thought this method was the easiest.  Help?!

Thanks

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