File uploading with ASP.NET HtmlForms

John Avis by | June 12, 2012 | ASP.NET Html Forms ASP.NET Web Forms Web Development

Following up on my previous article about ASP.NET HtmlForms, this sample code illustrates how to handle file uploads. As you can see the usual ASP.NET server side methods work perfectly well even if you don't use an ASP.NET file upload control.

Test.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Test.aspx.cs" Inherits="Test.Test" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form action="" enctype="multipart/form-data" method="post">
<input id="fupFile" name="fupFile" type="file" />
<input type="submit" value="Submit" />
</form>
</body>
</html>


Test.aspx.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Test
{
public partial class Test : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (Request.HttpMethod == "POST")
{
HttpPostedFile file = Request.Files["fupFile"];
if (file != null && file.ContentLength > 0)
{
string filename = Path.GetFileName(file.FileName);
file.SaveAs(Server.MapPath(Path.Combine("~/App_Data/", filename)));
}
}
}
}
}

Related Posts

Intermittent "Unable to read data from the transport connection: net_io_connectionclosed" errors

by John Avis | May 6, 2020

If you are having intermittent problems sending email in .NET using System.Net.Mail consider switching libraries.


500 Internal Server Error after migrating from IIS 7.5 to IIS 10

by John Avis | November 4, 2019

As support ends for Microsoft Windows Server 2008 I have recently gone through migrating some websites to a new server running Windows Server 2016 and IIS 10 but some of the websites did not work.


tagInput: A simple jQuery plugin for tag entry using Bootstrap 4

by John Avis | October 15, 2019

For a website project I needed a way to enter multiple tags. I just wanted something simple that I could easily modify to suit my own needs, so I wrote my own.

Comments

There are no comments yet. Be the first to leave a comment!

Leave a Comment

Tags

About

...random postings about web development and programming, Internet, computers and electronics topics.

I recommend ASPnix for web hosting and Crazy Domains for domain registration.

Subscribe

Get the latest posts delivered to your inbox.