如何在GridView中使用ButtonField打开新选项卡/页面

<asp:GridView ID ="FileGrid" runat="server" AutoGenerateColumns="False" OnRowCommand="FileGrid_RowCommand">
    <Columns>
        <asp:BoundField DataField="OriginalFileName" HeaderText="OriginalFileName" SortExpression="OriginalFileName" /> 
        <asp:BoundField DataField="AttachmentGUID" HeaderText="AttachmentGUID" SortExpression="AttachmentGUID" />             
        <asp:ButtonField Text="Generate PDF" runat="server" HeaderText="Convert To PDF" CommandName="GeneratePDF_Click" />
    </Columns>
</asp:GridView>
<asp:GridView ID ="FileGrid" runat="server" Aut