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Editorial Team
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Asked: 2026-05-15T18:15:10+00:00

I am trying to make a server page (C#, asp.net 2.0+) to save an

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I am trying to make a server page (C#, asp.net 2.0+) to save an uploaded file from another page.

Specifically,
I have an HTML page with a 

<form action="upload.aspx">

and I can’t figure out how to handle saving the file on the server in upload.aspx.

I found a few examples (one being: http://msdn.microsoft.com/en-us/library/aa479405.aspx)
but that requires the <input type=file> element to be on the same page.

I am having difficulties with grabbing the posted file on my upload.aspx page.

Anyone have any pointers? How can I grab a posted file in aspx and save it to the server when the file is posted from another page?

Many thanks,
Brett

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1 Answer

  1. Editorial Team

    1.Create Uploadfile.aspx, code as below:

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Uploadfile.aspx.cs" Inherits="Uploadfile" %>
<!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>File Upload Control</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <asp:FileUpload  runat="server" ID="fuSample" />
    <asp:Button  runat="server" ID="btnUpload" Text="Upload"
            onclick="btnUpload_Click" />
            <asp:Label runat="server" ID="lblMessage" Text=""></asp:Label>
    </div>
    </form>
</body>
</html>

    2.create Uploadfile.aspx.cs, code as below:

    using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Uploadfile : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
  }
  protected void btnUpload_Click(object sender, EventArgs e)
  {
    //Files is folder Name, make sure it exists
    fuSample.SaveAs(Server.MapPath("/Files") + "//" + fuSample.FileName);
    lblMessage.Text = "File Successfully Uploaded";
  }
}

    3.create a new file: demo.html, code shown as below, (embed the Uploadfile.aspx in Your Html page using iframe)

    <h3>Demo</h3>
<iframe height="40" width="700" src="Uploadfile.aspx">
</iframe>

    4.visit /demo.html, now you can be able to upload your file from html itself,by using UploadFiles.aspx

    enter image description here

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