there are a few tranformation (acsx, macro, etc)types and syntax will be different for each of them.  most likely you are using ACSX type syntax should be:
<tr>
    <%# Eval("CountryAlias") %>
</tr>
see acsx tranformation methods:
<asp:PlaceHolder runat="server" Visible="<%# Eval("CountryAlias") == 'CA'%>">
    <html>
</asp:PlaceHolder>
 <asp:PlaceHolder runat="server" Visible="<%# Eval("CountryAlias") != 'CA'%>">
    <other html>
</asp:PlaceHolder>