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GridView Hyper Link not working

Posted By:      Posted Date: September 28, 2010    Points: 0   Category :ASP.Net
 

Hello,

<asp:TemplateField ShowHeader="false" ItemStyle-Width="50px">
                       <ItemTemplate>
                            <asp:HyperLink runat="server"  NavigateUrl='<% string.Format("~/Tiff.aspx?Id={0}, Eval("ID")) %>'  Target="_blank" Text="View" />
                   </ItemTemplate>
                     </asp:TemplateField>


When I m trying to click on it...It is not working or not firing any event,

May I know the reasong or any code behing is require

TIA




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