How to download files from a folder in Asp.Net

How to download files from a folder in Asp.Net

Aspx Page:-

 <div>

    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false" EmptyDataText = "No files uploaded">

        <Columns>

            <asp:BoundField DataField="Text" HeaderText="File Name" />

<asp:TemplateField>

                <ItemTemplate>

                    <asp:LinkButton ID="lnkDownload" Text = "Download" CommandArgument = '<%# Eval("Value") %>' runat="server" OnClick = "DownloadFile"></asp:LinkButton>

                </ItemTemplate>

            </asp:TemplateField>

         </Columns>

    </asp:GridView>

    </div>

CS Page:-

Name Space Used:-

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.IO;

Code to List files in folder:-

 protected void Page_Load(object sender, EventArgs e)

        {

            if (!IsPostBack)

            {

                string[] filePaths = Directory.GetFiles(Server.MapPath("~/Files/")); 

// Here Files is the name of my folder where files are stored

                List<ListItem> files = new List<ListItem>();

                foreach (string filePath in filePaths)

                {

                    files.Add(new ListItem(Path.GetFileName(filePath), filePath));

                }

                GridView1.DataSource = files;

                GridView1.DataBind();

            }

        }

Code To Download Files:-

 protected void DownloadFile(object sender, EventArgs e)

        {

            string filePath = (sender as LinkButton).CommandArgument;

            Response.ContentType = ContentType;

            Response.AppendHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(filePath));

            Response.WriteFile(filePath);

            Response.End();

        }

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