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>