Mapping url over image

Hi *.*,
I know its basic Still it had its important because of that i'm publishing it again here.

<a href='<%# "AgencyVouchers.aspx?id=ORB" + DataBinder.Eval(Container.DataItem,"booking-ID").ToString()%>'>
<asp:Image ImageUrl="~/MainPages/images/ggggg_05.png" ID="imgprint" runat="server" /></a>

If u had any trouble just ask, Happy to help u :)
 Stay Tune... 
Have a nice day... 'N happy Coding :)