How to open link in new window using Response.Redirect ?

 <asp:LinkButton ID="lbndemo" runat="server"
             ForeColor="Blue"  Text="View"

             CommandArgument="<%# CType(Container, GridViewRow).RowIndex %>"                                             CommandName="View"  
            OnClientClick="aspnetForm.target ='_blank';">

        </asp:LinkButton>

code Behind:

 Response.Redirect("demo.aspx")