Just add your oncommand argument to the repeated button
<asp:Button ID="modelButton" CommandArgument='<%# Eval("Model") %>' OnCommand="CommandBtn_Click" Text='<%# "Add Model to List:" + Eval("Model") %>' runat="server" />
you can grab the eval in the behind code
void CommandBtn_Click(Object sender, CommandEventArgs e){
var command = e.CommandArgument;
// Do whatever with it here
}
That will get the evaluated model