ListView: making the binding dynamic - How?

Question

Hi all,

I'm using a listview control to show a list of categories/subcategories

<%# Eval("SubCategory1")%>

When the user clicks the SubCategory1 link, the list view should fill up with the next subcategory, SubCategory2. The problem is off course that <%# Eval("SubCategory1")%> is hard-coded. I need it to change to <%# Eval("SubCategory2")%>...and so on, as the user is drilling down into the sub-categories.

So is there a way to change <%# Eval("SubCategory1")%> dynamically?

Regards

Melt