facebook share dialog implementation

i have tried to implement a share dialog button on my articles in asp.net site with the bellow code but it dont read the metatags

<

ahref="https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fnovaonda.no-ip.info:8080/detalhe_noticia.aspx?id=<%# Eval("id") %>"target="_blank"><asp:ImageID="Image1"runat="server"ImageAlign="Right"ImageUrl="images/content/Facebook-boxy-48.png"Width="32"Height="32"ToolTip="Share on Facebook"/></a>

i also prefer to use a share counter but i cant finde the native code for that.

but on https://developers.facebook.com/tools/debug it reads all correct just when i share it from my site it dont show the preview image, decription, or titlehttp://novaonda.no-ip.info:8080/detalhe_noticia.aspx?id=6