FileUpload.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="FileUpload.aspx.cs" Inherits="FileUpload" %>
<!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>Upload Image</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnUpload" runat="server" Text="Upload"
onclick="btnUpload_Click" />
<br />
<br />
<br />
<asp:Image ID="imgViewr" runat="server" />
<span id="spnMessage" runat="server"></span>
</div>
</form>
</body>
</html>
FileUpload.cs
using System;
using System.Web;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
public partial class FileUpload : System.Web.UI.Page
{
public string strImagePath ="~/Images/";
public System.Collections.Generic.List<string> arrValidExtention = new System.Collections.Generic.List<string>();
protected void Page_Load(object sender, EventArgs e)
{
arrValidExtention.Add(".JPG");
arrValidExtention.Add(".JPEG");
}
protected void btnUpload_Click(object sender, EventArgs e)
{
//Check file is selected or not
if (FileUpload1.PostedFile.FileName != "")
{
try {
//Get selected file extention
string strFileExtention = System.IO.Path.GetExtension(FileUpload1.PostedFile.FileName).ToUpper();
//if (strFileExtention == ".jpg".ToUpper() || strFileExtention == ".jpeg".ToUpper())
if (arrValidExtention.Contains(strFileExtention))
{
//Save selected file
FileUpload1.PostedFile.SaveAs(Server.MapPath(strImagePath + FileUpload1.PostedFile.FileName));
spnMessage.InnerText = "File uploaded successfully.";
}
else
{
spnMessage.InnerText = "Please select JPEG|JPG file.";
}
}
catch (Exception exp)
{
spnMessage.InnerText = exp.Message.ToString();
}
}
}
}