how to implement image gallery using binary image in asp.net

Question

friends,

 

i would like to develop a gallery page that already 50 % completed but i have images in binary format , i displayed  all the images , but i want when i click  on image button it will shows the full length ...so how can i write a code for that please tel me.....   

 

 

 

<asp:DataList ID="dl_testimonials" Height="550px" CellSpacing="2" CellPadding="1" Width="100%" RepeatLayout="Table" RepeatDirection="Horizontal" RepeatColumns="4" runat="server">

<ItemTemplate >

<div id="dl_galitmback">

<asp:ImageButton ID="img_testiuser" CssClass="img_gallery" ImageUrl='<%# "getgalleryimg.aspx?id=" + Eval("gid") %>' rel="prettyPhoto[pp_gal]" runat="server" />

<%--<a href='<%# "getgalleryimg.aspx?id=" + Eval("gid") %>' rel="prettyPhoto[pp_gal]" title="'<%#Eval("caption") %>">

<img src='<%# "getgalleryimg.aspx?id=" + Eval("gid") %>' width="60" height="60" alt='<%# Eval("displayname") %>' />

</a>--%>

</div>

</ItemTemplate>

</asp:DataList>