Dynamic ConnectionString For SqlDataSource

I have a datasource on my ASP.NET 2.0 control I want to make dynamic.  I have 6 different connection strings in my web.config file and want to change the connection with the selection in dropdownbox.

Here is my VB code:Protected Sub GetDatabase(ByVal intDb As Integer)
Select Case intDb


Case 1 ' Americas

srcCustomers.ConnectionString = "RWSqlServer"

Exit Sub

Case 2 ' Asia

srcCustomers.ConnectionString = "SGSqlServer"

Exit Sub

Case 3 ' Australia

srcCustomers.ConnectionString = "SYSqlServer"

Exit Sub

Case 4 ' Canada

srcCustomers.ConnectionString = "MSSqlServer"

Exit Sub

Case 5 ' EMEA

srcCustomers.ConnectionString = "NCSqlServer"

Exit Sub

Case 6 ' NE

srcCustomers.ConnectionString = "RUSqlServer"

Exit Sub

End Select

End SubProtected Sub ddlBusinessUnit_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)


If (ddlBusinessUnit.SelectedIndex = 0) Then

panUser.Visible = False

panDistributor.Visible = False

panEndUser.Visible = False

GetDatabase(ddlBusinessUnit.SelectedIndex)

lblDb.Text = ddlBusinessUnit.SelectedIndex.ToString

Else

 

panUser.Visible = True

End If

End Sub

Here is my ASP.NET code:<asp:SqlDataSource ID="srcCustomers" runat="server" SelectCommand="SELECT cm_addr + ' - ' + cm_sort AS [name], cm_addr, cm_sort FROM cm_mstr WHERE cm_type <> 'I'">

</asp:SqlDataSource><asp:DropDownList ID="ddlBusinessUnit"

runat="server"AutoPostBack="True"

OnSelectedIndexChanged="ddlBusinessUnit_SelectedIndexChanged">

<asp:ListItem Value="" Text="Select One"></asp:ListItem>

<asp:ListItem Value="1" Text="Americas"></asp:ListItem>

<asp:ListItem Value="2" Text="Asia"></asp:ListItem>

<asp:ListItem Value="3" Text="Australia"></asp:ListItem>

<asp:ListItem Value="4" Text="Canada"></asp:ListItem>

<asp:ListItem Value="5" Text="EMEA"></asp:ListItem><asp:ListItem Value="6" Text="NE"></asp:ListItem>

</asp:DropDownList>

What am I missing?  Do I need to reference the whole connection string or is there a way I can reference the "NAME" id in the web.config file for the connection string?