ASP.NET 4.0 Route expression builder inside Listview control - asp.net

Question

One of the features of ASP.NET 4.0 is Route Expression builder which allows you to set up hyperlinks like this:
<asp:HyperLink
runat="server"
NavigateUrl="<%$ RouteUrl:RouteName=productos,categoria=Cereales,id=2 %>" >Productos</asp:HyperLink>
Now I'm wondering if I can use this sort of syntax inside a ListView Control, I know is possible, but the tricky thing is that I want to genereate de route key value dynamically.
So instead to write id=2 I would like to write id=<%# Eval("CategoryID") %> .
Can I do that?, if so, how should I write it.
Thanks for your help!

Answer 1

I have searched and searched for an example did not find a way to handle building routes in an expression builder. I finally figured out a way to do this in a gridview, maybe you can adapt? See my post at the following address where I answered my own question: How to use routing in web forms and HyperLinkFields of a GridView
I think an asp hyperlink control will not work because the controls are built before the Eval() is called, but an anchor is just text so it works within a template field.

Answer 2

Not sure whether you can do it with the Route ExpressionBuilder. Instead you can give an ID to the Hyperlink object in the .aspx file:
<asp:HyperLink ID="productHyperLink" runat="server">Productos</asp:HyperLink>
And set the NavigateUrl property in the Page_Load method in the .cs file:
protected void Page_Load(object sender, EventArgs e)
{
int categoryId;
string categoryName;
// Get categoryId and categoryName from database
RouteValueDictionary values = new RouteValueDictionary {
{ "id", categoryId.ToString() },
{ "categoria", categoryName } };
VirtualPathData virtualPathData = RouteTable.Routes.GetVirtualPath(null, "productos", values);
productHyperLink.NavigateUrl = virtualPathData.VirtualPath;
}