Open a URL in new window when i Click on Gridview linkbutton

      datasourceid="SqlDataSource1"
      width=10% cellpadding=5 font-size="8pt"
      autogeneratecolumns=False
      headerstyle-backcolor="maroon"
      headerstyle-forecolor="khaki"
      headerstyle-font-bold
      rowstyle-verticalalign="top" DataKeyNames="ID">

     
                  datatextfield="Name"

//Here you can give your URL which you want
            datanavigateurlformatstring="hyperli.aspx?Name={0}"
            datanavigateurlfields="Name" />

            ConnectionString="<%$ ConnectionStrings:pub4ConnectionString2 %>"
        SelectCommand="SELECT * FROM [Customer]">

Please see the attached file.

Hope this will help you.

Thanks.