using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.IO;
using Microsoft.Win32;
namespace DownLoadFiles
{
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Button Button1;
protected System.Web.UI.WebControls.DropDownList DropDownList1;
private void Page_Load(object sender, System.EventArgs e)
{
string path = MapPath("..") + "/ExUpLoads/";
string[] files = Directory.GetFiles(path,"*.*");
foreach(string file in files)
{
string name = Path.GetFileName(file);
DropDownList1.Items.Add(name);
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: This call is required by the ASP.NET Web Form Designer.
//
InitializeComponent();
base.OnInit(e);
}
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.Button1.Click += new System.EventHandler(this.Button1_Click);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private static string GetContentTypeFromFileExt(string fileExtension)
{
RegistryKey regKey = Registry.ClassesRoot.OpenSubKey(fileExtension);
try
{
return regKey.GetValue(
"Content Type","application/octet-stream"
).ToString();
}
catch(Exception)
{
return "application/octet-stream";
}
}
private void Button1_Click(object sender, System.EventArgs e)
{
string pathFrom = MapPath("..") + "/ExUpLoads/";
string filename = DropDownList1.SelectedItem.Text;
FileInfo file = new FileInfo(pathFrom + filename);
string temp = file.FullName;
Response.Clear();
Response.ContentType = GetContentTypeFromFileExt(file.Extension);
Response.AppendHeader(
"Content-Disposition",
"attachment; filename=" + file.FullName
);
Response.Flush();
temp = Response.ContentType;
Response.WriteFile(file.FullName);
}
}
}
WebForm1
DownLoad Files Here