Dynamic column-label or linkbutton?

[Adam Smith]

How do I dynamically decide on a column type depending upon my data.
I.E., what I want to do is (But get a compile error in browser on syntax
of missing '}'):

<asp:TemplateColumn HeaderText="MyColumn">
<ItemTemplate>
<%# String if(DataBinder.Eval(Container,
"DataItem.MyColmn")==null){ %>
<asp:label id=label1 runat=server text="nodata"/>
<% }else{%>
<asp:ButtonColumn Text="Jump to Data" CommandName="Jump"/>
<% }%>
</ItemTemplate>
</asp:TemplateColumn>

 

[Earl Teigrob]

I could not find a a way of doing this AND maintianing view state without
creating a Custom Column Control and either modifying its controls visible
property in the itemDataBound event or using DataBinding Data to
conditionally load controls within the custom colomn control itself. Chaper
12 of "ASP.NET Data Web Controls" by Scott Mitchell explains Custom Columns
very well.

Earl