How do you perform an IF test in a DataGrid? Here is the code I'm trying so far:

<asp:TemplateColumn>
<ItemTemplate>
<% If Container.DataItem ("Prod_Image") <> 0 Then %>
<img src='assets/products/<%# Container.DataItem ("Prod_Image") %>' width='100' height='100'>
<% Else %>
&nbsp;
<% End If %>
</ItemTemplate>
</asp:TemplateColumn>

The best way I've found to do things like this is to use a helper function in your codebehind that performs the final logic and call it from the markup template:

Protected Function CheckImage(intProdImage As Integer) As String
    If intProdImage <> 0 Then
        Return String.Format("<img src=""assets/products/{0}"" width=""100"" height=""100"">", intProdImage)
    Else
        Return "&nbsp;"
End If

<ItemTemplate><%# CheckImage(Container.DataItem("Prod_Image")) %></ItemTemplate>

-Peter