DataNavigateUrlFormatString="/Upload/<%User.Identity.Name%>/{0}"怎么绑定啊?
<asp:HyperLinkColumn DataNavigateUrlField="filename" DataNavigateUrlFormatString="/Upload/<%User.Identity.Name%>/{0}" DataTextField="filename" HeaderText="打开文件请点击" DataTextFormatString="{0}">
<ItemStyle Wrap="False"></ItemStyle>
</asp:HyperLinkColumn>
请问"/Upload/<%User.Identity.Name%>/{0}"这句中的<%User.Identity.Name%》如何绑定?急!!