hi all, is it possible using conditional in data repeater?

i have problem when generate data repeater.
Repeater will generate some Pivot table like this:

Type | January | February | March
========================================
xxxx |1500 | 0 |1500
yyyy |1800 | 1200 |1230
zzzzz |1200 | 0 |1400
the number will have hyperlink to detail report.
i know how to pass parameter from hyperlink like this;
<asp:Repeater ID="ROwnRiskCustomer" runat="server">
<HeaderTemplate>
<table width="60&#37;" border="1">
<tr>
<th>Jenis</th>
<th>Januari</th>
<th>Februari</th>
<th>Maret</th>
</tr>

<ItemTemplate>
<tr>
<td>

<%#DataBinder.Eval(Container.DataItem, "Jenis")%>

</td>
<td>

<a href="OwnRiskCustomerDetail.aspx?th=<%#DataBinder.Eval(Container.DataItem, "Tahun") %>&bl=01"> <%#DataBinder.Eval(Container.DataItem, "01")%></a>

</td>
<td>

<a href="OwnRiskCustomerDetail.aspx?th=<%#DataBinder.Eval(Container.DataItem, "Tahun") %>&bl=02"> <%#DataBinder.Eval(Container.DataItem, "02")%></a>

</td>
<td>

<a href="OwnRiskCustomerDetail.aspx?th=<%#DataBinder.Eval(Container.DataItem, "Tahun") %>&bl=02"> <%#DataBinder.Eval(Container.DataItem, "02")%></a>

</td>
</tr>

this code is succes,but i want add some conditional .
so if the "01","02","03" return number zero then no hyperlink.
how can i add in asp.net??

i am using :
<td>
<%


If Eval("01") = 0 Then

%>
0
<%Else%>
<a href="OwnRiskCustomerDetail.aspx?th=<%#DataBinder.Eval(Container.DataItem, "Tahun") %>&bl=01"> <%#DataBinder.Eval(Container.DataItem, "01")%></a>
<% End If
%>


</td>
but this don't work because get error message
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control"
any one can give me clue?

before this ,i have do it in Crystal report to show this master detail report,but i getting stuck when passing parameter for hyperlink. so i make backup plan if still don't get it in crystal report