Complete Source Code of HTML Page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<HTML xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Multiple Files Upload</title>
<script type = "text/javascript">
var counter = 0;
function AddFileUpload() {
var div = document.createElement('DIV');
div.innerHTML = '<input id="file' + counter + '" name = "file' + counter +
'" type="file" />' +
'<input id="Button' + counter + '" type="button" ' +
'value="Remove" onclick = "RemoveFileUpload(this)" />';
document.getElementById("FileUploadContainer").appendChild(div);
counter++;
}
function RemoveFileUpload(div) {
document.getElementById("FileUploadContainer").removeChild(div.parentNode);
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lblError" runat="server" Font-Bold="true" ForeColor="Red"> </asp:Label><br />
<span style="font-family:Arial"><span style="color: #003366"> Click to add files</span></span>
<input id="Button1" onclick="AddFileUpload()"
style="height: 27px; width: 74px;" tabindex="25" type="button" value="add" /><br /> <br /><br />
<div id="FileUploadContainer">
<asp:FileUpload ID="FileUpload1" runat="server" />
<!--FileUpload Controls will be added here -->
</div> <br /> <br /> <br />
<asp:Button ID="btnUpload" runat="server" Text="Upload" onclick="btnUpload_Click" />
<br /><br /></TD>
</div>
</form>
</body>
</html>
.............................................................................
The complete code of Default.aspx.cs Page
using System;
using System.Web;
using System.Collections.Generic;
using System.Linq;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Data;
using System.Text;
using System.IO;
public partial class Default : System.Web.UI.Page
{
string error;
protected void Page_Load(object sender, EventArgs e)
{
if (IsPostBack)
{
error="";
}
}
protected void btnUpload_Click(object sender, EventArgs e)
{
string FileName="";
try
{ // Get the HttpFileCollection
HttpFileCollection hfc = Request.Files;
for (int i = 0; i < hfc.Count; i++)
{
HttpPostedFile hpf = hfc[i];
FileName = System.IO.Path.GetFileName(hpf.FileName);
if (hpf.ContentLength > 0)
{
if (hpf.ContentLength < 307200)
{
string Ext = System.IO.Path.GetExtension(hpf.FileName);
if ((Ext == ".txt") || (Ext == ".doc") || (Ext == ".docx") || (Ext == ".xls") || (Ext == ".xlsx"))
{
hpf.SaveAs(Server.MapPath("~/Files/") + "doc[" + (i + 1).ToString() + "]@" + System.DateTime.Now.Date.Date.ToString("dd-MM-yy") + Ext);
error = "'" + FileName.ToString() + "'" + " Uploaded Successfully..." + "<br>";
}
else
{
error = "'" + FileName.ToString() + "'" + " Failed :" + "'" + Ext.ToString() + "'" + " Extension not supported... " + "<br>";
}
}
else
{
error = "'" + FileName.ToString() + "'" + " Failed : " + " file length should not exceed 3MB... " + "<br>";
}
}
else
{
error = "'" + FileName.ToString() + "'" + " Failed : " + " File is Empty... " + "<br>";
}
lblError.Text = error + lblError.Text;
}
}
catch (Exception ex)
{
Response.Write(ex.Message);
}
}
}