Gridview Control ASP.net download file using hyperlink from database

I using Gridview control to display some data from SQL database. One of these items is a path to a directory that holds PDF files. Rather than show the path in the Gridview I would like to display a hyperlink that will open or download the PDF file. Any help would be appreciated.


Current Page code:
<%@ Page Title="" Language="VB" MasterPageFile="~/MasterPage.master" AutoEventWireup="false" CodeFile="Punch_Grid.aspx.vb" Inherits="Punch_Grid" %>

<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
    <style type="text/css">
        .auto-style24 {
            width: 470px;
        }
        .auto-style25 {
            width: 409px;
        }
    </style>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <p>
        <table class="auto-style1">
            <tr>
                <td class="auto-style25">&nbsp;</td>
                <td class="auto-style24">
                    <asp:Label ID="Label1" runat="server" Font-Bold="True" Font-Size="X-Large" Text="Punch List Review"></asp:Label>
                </td>
                <td>&nbsp;</td>
            </tr>
        </table>
    </p>
    <p>
    </p>
    <p>
    </p>
    <p>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" DataKeyNames="ID" DataSourceID="SqlDataSource1" ForeColor="Black" GridLines="Vertical" Width="1291px">
            <AlternatingRowStyle BackColor="#CCCCCC" />
            <Columns>
                <asp:CommandField ShowSelectButton="True" />
                <asp:BoundField DataField="TagNo" HeaderText="TagNo" SortExpression="TagNo" />
                <asp:BoundField DataField="Path" HeaderText="Path"
                    SortExpression="Path" />
                    <asp:ButtonField ButtonType="Link" Text="Download" CommandName="Download" HeaderText="Download" />

            </Columns>
            <FooterStyle BackColor="#CCCCCC" />
            <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
            <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
            <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
            <SortedAscendingCellStyle BackColor="#F1F1F1" />
            <SortedAscendingHeaderStyle BackColor="#808080" />
            <SortedDescendingCellStyle BackColor="#CAC9C9" />
            <SortedDescendingHeaderStyle BackColor="#383838" />
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:BlackRhinoConnectionString %>" SelectCommand="SELECT * FROM [Punch]"></asp:SqlDataSource>
    </p>
   
</asp:Content>
A.JPG