HTML Hyperlink to Variable ASP.NET

Hi

I Have a HTML Hyperlink in a Datagrid

I want to Assign the URL from that Hyperlink to a a variable

this is what i have done so far

aspx page

<asp:TemplateColumn>                                                                                    <ItemTemplate>
<a id="Link" href="java<!-- no -->script:OpenAttachment('<%# DataBinder.Eval(Container, "DataItem.Link")%>');">
<%# DataBinder.Eval(Container, "DataItem.Link")%></a>
                                                                                    </ItemTemplate>                                                                                </asp:TemplateColumn>

in .cs page

HtmlGenericControl Link = (HtmlGenericControl)lDgModel.FindControl("Link");

string Link1 = Link. ?? .ToString();

what i have to enter in place of "??" to assign the URL to the variable

thank you