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Technologies
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Upload file with Progress Bar : In a tweak
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Many times I have asked this question that How can I show a progress Bar with FileUloadControl in Asp.net?
Its a very easy and a tactic task. The logic behind this is just to get the total time take for upload a file into server. The following code-snippet describes the same:
Design File:
<% @ 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">
<style type="text/css">
html
{
background-color: Gray;
font: 14px Georgia,Serif,Garamond;
}
h1
{
color: Green;
font-size: 18px;
border-bottom: Solid 1px orange;
}
.clear
{
clear: both;
}
.lbl
{
color: green;
font-weight: bold;
}
.upperColumn
{
margin: auto;
width: 600px;
border-bottom: Solid 1px orange;
background-color: white;
padding: 10px;
}
.bottomColumn
{
margin: auto;
width: 600px;
background-color: white;
padding: 10px;
}
</style>
<title>File Upload</title>
<script language="javascript" type="text/javascript">
var size = 2;
var id= 0;
function ProgressBar()
{
if(document.getElementById('<%=ImageFile.ClientID %>').value != "")
{
document.getElementById( "divProgress").style.display = "block";
document.getElementById( "divUpload").style.display = "block";
id = setInterval( "progress()",20);
return true;
}
else
{
alert( "Select a file to upload");
return false;
}
}
function progress()
{
size = size + 1;
if(size > 299)
{
clearTimeout(id);
}
document.getElementById( "divProgress").style.width = size + "pt";
document.getElementById( "<%=lblPercentage.ClientID %>").firstChild.data = parseInt(size / 3) + "%";
}
</script>
</ head>
< body>
<form id="form1" runat="server">
<div class="upperColumn">
<h1>
File Upload Example </h1>
<asp:Label ID="lblImageFile" Text="Load Image" AssociatedControlID="ImageFile" runat="server"
CssClass="lbl" />
<asp:FileUpload ID="ImageFile" runat="server" />
<br />
<br />
<asp:Button ID="btnAddImage" runat="server" Text="Add Image" OnClientClick="return ProgressBar()"
OnClick="btnAddImage_Click" />
<asp:Button ID="btnShowImage" Text="Show Image" runat="server" OnClick="btnShowImage_Click" />
<div id="divUpload" style="display: none">
<div style="width: 300pt; text-align: center;">
Uploading... </div>
<div style="width: 300pt; height: 20px; border: solid 1pt gray">
<div id="divProgress" runat="server" style="width: 1pt; height: 20px; background-color: orange;
display: none">
</div>
</div>
<div style="width: 300pt; text-align: center;">
<asp:Label ID="lblPercentage" runat="server" Text="Label"></asp:Label></div>
<br />
<asp:Label ID="Label1" runat="server" ForeColor="Red" Text=""></asp:Label>
</div>
</div>
<br class="clear" />
<div class="bottomColumn">
<asp:DataList ID="dlImageList" RepeatColumns="3" runat="server">
<ItemTemplate>
<asp:Image ID="imgShow" ImageUrl='<%# Eval("Name","~/UploadImages/{0}")%>' Style="width: 200px"
runat="server" AlternateText='<%# Eval("Name") %>' />
<br />
<% # Eval("Name") %>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</ body>
</ html>
Code-Behind File:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
public partial class fileUpload : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void btnAddImage_Click(object sender, EventArgs e)
{
if (ImageFile.HasFile) //if file uploaded
{
if (checkFileType(ImageFile.FileName)) //Check for file types
{
try
{
//save file
ImageFile.SaveAs(MapPath( "~/UploadImages/" + ImageFile.FileName));
//Response.Write("<script language =Javascript> alert('File Uploaded Successfully, Click Show Images');</script>");
System.Threading. Thread.Sleep(8000);
Label1.Text = "Upload successfull!";
}
catch (System.IO.DirectoryNotFoundException)
{
createDir();
}
}
}
else
{
Response.Write( "<script language =Javascript> alert('Invalid File Format, choose .gif,.png..jpg.jpeg');</script>");
}
}
private bool checkFileType(string fileName)
{
string fileExt = Path.GetExtension(ImageFile.FileName);
switch (fileExt.ToLower())
{
case ".gif":
return true;
case ".png":
return true;
case ".jpg":
return true;
case ".jpeg":
return true;
default:
return false;
}
}
private void createDir()
{
DirectoryInfo myDir = new DirectoryInfo(MapPath("~/UploadImages/"));
myDir.Create();
//Now save file
ImageFile.SaveAs(MapPath( "~/UploadImages/" + ImageFile.FileName));
Response.Write( "<script language =Javascript> alert('File Uploaded Successfully,Click Show Images');</script>");
}
protected void btnShowImage_Click(object sender, EventArgs e)
{
DirectoryInfo myDir = new DirectoryInfo(MapPath("~/UploadImages/"));
try
{
dlImageList.DataSource = myDir.GetFiles();
dlImageList.DataBind();
}
catch (System.IO.DirectoryNotFoundException)
{
Response.Write( "<script language =Javascript> alert('Upload File(s) First!');</script>");
}
}
}
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Do you have a working code that can be used by anyone? Submit it
here. It may help someone in the community!!
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