new url in Rout page

hi
sorry i cant write English very well
 
when i use Routing in my program i can't to use a tag
for example :
 
in result-search Page
when user come to www.namesite.com/result-search/love
 

<asp:Image ID="Image1" runat="server" Height="104px"
ImageUrl='<%# Eval("previewPath") %>' Width="169px" />

 

in this code i want when user on click image
user redirect to "www.namesite.com/download-image/1"
 
but Routing redirect user to "www.namesite.com/result-search/1"
 
help me please