cant show data from my database

[want2learn]

Hi

I have this code, but i can't get it to work, and if i delete <% %> then the if statsment is not working, how do i get this code to work.

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionStringMain %>"
    SelectCommand="SELECT [SiteMainID], [SiteMainText] FROM [MainSiteText] WHERE ([SiteMainID] = @SiteMainID)">
<%    Dim pageString As String = "Def"
      If Not (Request.QueryString("Page") Is Nothing) Then
        pageString = Request.QueryString("Page").ToString
      End If
      If pageString = "Def" Then
%>
        <SelectParameters>
            <asp:Parameter DefaultValue="1" Name="SiteMainID" Type="Int32" />
        </SelectParameters>
<%
      Else
        If pageString = "Page1" Then
%>
        <SelectParameters>
            <asp:Parameter DefaultValue="2" Name="SiteMainID" Type="Int32" />
        </SelectParameters>
<%
        Else
          If pageString = "Page2" Then
%>
        <SelectParameters>
            <asp:Parameter DefaultValue="3" Name="SiteMainID" Type="Int32" />
        </SelectParameters>
<%
 
        End If
      End If
%>
</asp:SqlDataSource>